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1
Tolasa, Bayesa. "Current Status of Indigenous and Highly Productive Chicken Breeds in Ethiopia." Advances in Agriculture 2021 (July 16, 2021): 1–5. http://dx.doi.org/10.1155/2021/8848388.
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In Ethiopia, chicken production plays an important role in providing human food consumption, growth of domestic products, and creating employment opportunities. Despite their importance, the production and reproduction performance of chickens in the country is under expectation owing to the gap between low productive indigenous and low adaptive ability of highly productive chicken breeds. By considering this, the present paper aims to deliver, synthesize, and summarize the compiled information on the current status of indigenous and highly productive chicken breeds. Currently, there are several highly productive chicken breeds available in Ethiopia. Among these, Rhode Island Red, Fayoumi, Potchefstroom Koekoek, Sasso, Bovan Brown, Issa Brown, and Leghorn are being kept under various husbandry systems. Besides, indigenous chicken ecotypes such as barley plumage color, red plumage color, white plumage color, and black plumage color have been characterized in the country. However, the average annual egg production of indigenous and highly productive chicken breeds did not exceed 60 and 250 eggs, respectively. On the other hand, the meat production ability of indigenous chickens is limited as cockerels and pullets may reach 1.5 and 1.05 kilogram live weight at 6 months of age, respectively. Concerning the husbandry system, a majority of owners supplied feed to chickens on the ground and water in plastic containers while scavenging is being the common feeding system in most parts of the country. Furthermore, the majority of the owners are using no separate housing system and treat their chickens traditionally. Thus, awareness should be emphasized on enhancing the improvement of chicken husbandry systems for better production and reproduction performance.
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Dako, Safriyanto, and Safriyanto Dako. "CROSSBREDING BETWEEN NATIVE CHIKEN AND LEGHORN CHIKEN STRAIN ISA BROWN." JURNAL PETERNAKAN 16, no. 1 (March 1, 2019): 1. http://dx.doi.org/10.24014/jupet.v16i1.4050.
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This research is the first step, with aims to determine the production and reproduction ability of Crossbreding between male native chicken with female Isa brown strain leghorn, to be the parent in the next stage of research . This study used 3 male native chicken 12 -24 months of age. and and 28 females of Leghorn chicken 14 month of ege, with body weight 1100-1200 gram, crossbreding using artificial Insemination methode, semen domestic chicken dilution rate using physiological NaCl, ratio sperm dilution 1 : 4. They were put in grower flocks with density of one birds per cage. Feeds during experiment were given in phases, starter Feeds (Protein 21% and Energy 3000 kcal/kg), for layer (Protein 17% and Energy 2900 kcal/kg). Drinking water during experiment were given adlibitum. The result of the study illustrate crossbreeding between male native chicken and female leghorn chiken Isa Brown strain is egg weight: 51.50-54.17 gram, egg index: 0.76 to 0.79%., Hatching weight: 39.34-39,39 grams, egg fertility 65,70-78,00%, hatchability 76.83-78.75%. In conclusion: egg weight of 52.42 eggs, egg index 0.78, eggs fertility 74.43%. hatchability 77,93%, and F1 body weight of 1 days of ege : 39.37 gram, and heritability DOC weight 0.43
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Kolapo, Ademola Augustine, and Gbadeyanka Afees. "DETERMINATION OF NATURAL RADIONUCLIDE AND ASSESSMENTS OF HEALTH HAZARDS IN CHICKEN FEEDS AND MEAT CONSUMED IN LAGOS, NIGERIA." Malaysian Journal of Science 40, no. 2 (June 30, 2021): 51–60. http://dx.doi.org/10.22452/mjs.vol40no2.5.
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Poultry farming is a highly profitable and not capital intensive agricultural project. It is becoming one of the highest investments in agriculture in Nigeria. The proliferation of self -produced feeds by the Farmers with the addition of some minerals to stimulate growth could elevate the levels of radionuclides in feeds. This, therefore, calls for the determination of the health effects from the consumption of these chicken meats and organs. 10 samples of broilers and 30 feed samples (10 each of Starter, Grower, and Finisher feeds used in feeding the chicken) were used; collected from five selected poultry- farms in Lagos State, Nigeria, and analyzed using spectrometry analysis with NaI (Tl). The results obtained showed that concentrations of 40K, 232Th, and 226Ra were 49.0±25.8, 24.9 ±12.2, and 32.9 ±16.2 Bqkg-1 respectively, in chicken meats. In the feeds, their values were below the UNSCEAR recommendation. The annual effective doses in chicken meats and organs were lower than the 70µSv/yr limit. The cancer risk was within the recommended limit, and the internal hazard indices were below unity. The mean values of the transfer coefficient (TC) were also below 1 for 40K, higher than unity for 226Ra in Finisher feeds, and 232Th in Starter feeds. The starter and finisher feeds were moderately contaminated. So, feeding chicken with these feeds may expose the consumers to the danger of over-exposure to 226Ra and 232Th.
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Putri, Nilda Tri, Elita Amrina, Dicky Fatrias, Insannul Kamil, and Nabila Humaida. "Ergonomic Evaluation on Chicken Feeder Tool at Egg-Laying Chicken Farm SME." Jurnal Optimasi Sistem Industri 20, no. 1 (May 18, 2021): 52. http://dx.doi.org/10.25077/josi.v20.n1.p52-60.2021.
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This research aims to evaluate the egg-laying chicken feeder that was designed at egg-laying chicken farm small and medium enterprise (SME). The main reason of this tool design was due to the worker’s complain of feeling pain during the feeding process. Evaluation was performed based on Nordic Body Map questionnaire result, physiological workload, and NIOSH lifting equation calculation. The observed work ranged from the feed filling in the basket until all feeds were distributed. The results showed that the %CVL was in the range of 18%-30% and the energy consumption of workers was in the range of 1.24-3.00 Kcal/minute. Thus, physiologically, the work activities carried out by the feed workers were categorized as very light workload. Meanwhile, evaluation using Lifting Index (LI) methods in the process of feeding showed the LI value ranged from 0.9-1, therefore this activity is safe to perform manually. Based on the prototype evaluation on the feeding aid, the process of feeding activities was more effective 1.5 times faster than the old tools. In addition, with the use of this new tool, the feeding process was easier to adjust the dose each time.
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Holubiev, M., T. Holubieva, and M. Sychov. "Effect of supplemental Mn, Zn, Fe and Cu and their interactions on the performance of broiler chickens." Ukrainian Journal of Veterinary and Agricultural Sciences 3, no. 3 (August 18, 2020): 29–33. http://dx.doi.org/10.32718/ujvas3-3.06.
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Based on the results of the analysis of feed materials on the content of micronutrient elements and conducting scientific experiments on broilers chicken, the most effective source of Manganese, Zinc, Iron and Copper in mixed feeds, which contributes to solving the problem of increasing the quality of feeding and intensifying the growth of poultry has been substantiated. The optimum source of essential elements (Mn, Zn, Fe, Cu) for broilers chicken through feeds, the level of their incorporation into mixed fodders have been experimentally determined, and their influence on productivity and feed costs per 1 kg of body weight gain have been investigated. The tasks set in the work have been solved experimentally using analytical (analysis of literature sources), zoo-technical (growth indices, feed intake) and statistical (processing of the results obtained) methods of research. The use of mixed feeds in feeding broilers chicken which contained glycinate of Manganese, Zinc, Iron and Copper making 75 % of the needs, contributes to increasing their body weight by 2.5 % and increasing the growth rate by 2.4 %. Feed costs per 1 kg of broilers chicken growth were 1.5 % lower than the young bird index of the control group.
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Milczarek, Anna, and Maria Osek. "Effectiveness Evaluation of Use of Various Protein Feeds for Broiler Chicken Feeding." Annals of Animal Science 19, no. 4 (October 1, 2019): 1063–81. http://dx.doi.org/10.2478/aoas-2019-0056.
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AbstractThe purpose of this paper was to assess the suitability of various protein feeds in broiler chicken feeding. The study covered 160 birds split into 5 equipotent groups (SBM, EFFS, RFFS, EL, DDGS). Four protein feeds were an experimental factor: extruded full-fat soybean (EFFS group), raw full-fat soybean (RFFS group), extruded lupine (EL group) and distillers dried grains with solubles (DDGS group) that were added to starter rations in an amount replacing 30%, and in grower and finisher rations 50% of extracted soybean meal protein. Results showed that after replacing an identical amount of extracted soybean meal protein with protein from extruded soybean or DDGS in chicken rations, the final body weight and feed conversion ratio were similar to those of birds from the control group. Deterioration (P≤0.01) in the above-mentioned parameters was observed for chickens fed with rations containing raw soybean or extruded lupine. Birds that were given rations containing raw soybean (RFFS group) were characterized by the lowest dressing percentage, and, compared to the control group, the difference was significant (P≤0.01). The type of protein feed contained in the rations did not affect the musculature of chickens, however it did impact their fat deposition. Fat deposition was the lowest in birds from RFFS and DDGS groups that reached the lowest final body weight. Microscopic images of all examined livers showed a normal histological structure. The results of the studies carried out provide a basis for recommending the use of extruded full-fat soybean or DDGS in broiler chicken rations as partial substitutes for extracted soybean meal protein.
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Rochell, Samuel. "Formulation of Broiler Chicken Feeds Using Distillers Dried Grains with Solubles." Fermentation 4, no. 3 (August 10, 2018): 64. http://dx.doi.org/10.3390/fermentation4030064.
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Distillers dried grains with solubles (DDGS) is a coproduct of corn-based ethanol production that can be a valuable source of energy, digestible amino acids, and available phosphorus in poultry feeds. Dietary incorporation of DDGS reduces the amount of primary ingredients such as corn and soybean meal needed to formulate poultry diets, improving the sustainability of both biofuel and poultry production. The nutritional value of DDGS has been extensively evaluated since it became increasingly available to feed producers in the early 2000s, but evolving methods of ethanol production and coproduct fractionation necessitate its continued characterization. Attempts to relate nutrient utilization of DDGS to its chemical composition have revealed that fiber content is a primary determinant of dietary energy value of DDGS for poultry. Distillers corn oil, which is extracted from thin stillage during production of distillers grains, can also be supplemented into poultry diets as an energy-dense lipid source in place of animal fats or other vegetable-based oils. Poultry feeding practices in the United States are also evolving, including increased adoption of all vegetable-based diets and reduced use of in-feed antimicrobials. Therefore, further characterization of both the nutritional value of DDGS and its impact on gastrointestinal health will support its continued use in poultry diets.
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Roybal, José E., Robert K. Munns, David C. Holland, Roger G. Burkepile, and Jeffrey A. Hurlbut. "Liquid Chromatographic Determination of Gentian Violet in Poultry Feed." Journal of AOAC INTERNATIONAL 75, no. 3 (May 1, 1992): 433–37. http://dx.doi.org/10.1093/jaoac/75.3.433.
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Abstract A liquid chromatographic (LC) method Is presented for the determination of gentian violet (GV) In poultry feed (turkey/chicken) at the therapeutic feeding level of 4-8 ppm. GV Is extracted from feed with acidified methanol, an aliquot of the supernatant is diluted with mobile phase, and the solution is filtered. LC analysis Is performed by Isocratlc elutlon with a buffered mobile phase on an Adtech CN (cyano) column with amperometrlc electrochemical detection (ED) at +1.000 V or detection in the visible absorbance mode at 588 nm. The overall average recovery of GV from chicken feed spiked at 2.5,5, and 10 ppm was 103% (standard deviation = 6.6; coefficient of variation = 6.4%) by LC/ED analysis. Data for recovery of GV from chicken and turkey feeds, fortified with 1% GV premlx at feeding levels of 4 and 8 ppm, are presented and discussed. Data for the 2 detection techniques are compared.
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Huber, Machteld, Lucy P. L. van de Vijver, Henk Parmentier, Huub Savelkoul, Leon Coulier, Suzan Wopereis, Elwin Verheij, Jan van der Greef, Dré Nierop, and Ron A. P. Hoogenboom. "Effects of organically and conventionally produced feed on biomarkers of health in a chicken model." British Journal of Nutrition 103, no. 5 (October 28, 2009): 663–76. http://dx.doi.org/10.1017/s0007114509992236.
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Consumers expect organic products to be healthier. However, limited research has been performed to study the effect of organic food on health. The present study aimed to identify biomarkers of health to enable future studies in human subjects. A feeding experiment was performed in two generations of three groups of chickens differing in immune responsiveness, which were fed identically composed feeds from either organic or conventional produce. The animals of the second generation were exposed to an immune challenge and sacrificed at 13 weeks of age. Feed and ingredients were analysed on macro- and micronutrients, i.e. vitamins, minerals, trace elements, heavy metals and microbes. The chickens were studied by general health and immune parameters, metabolomics, genomics and post-mortem evaluation. The organic and conventional feeds were comparable with respect to metabolisable energy. On average, the conventionally produced feeds had a 10 % higher protein content and some differences in micronutrients were observed. Although animals on both feeds were healthy, differences between the groups were found. The random control group of chickens fed conventional feed showed overall a higher weight gain during life span than the group on organic feed, although feed intake was mostly comparable. The animals on organic feed showed an enhanced immune reactivity, a stronger reaction to the immune challenge as well as a slightly stronger ‘catch-up growth’ after the challenge. Biomarkers for future research were identified in the parameters feed intake, body weight and growth rate, and in immunological, physiological and metabolic parameters, several of these differing most pronounced after the challenge.
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Zulfan, Zulfan, Herawati Latif, Cut Aida Fitri, and Evi Aswita. "Effect of Feeding Quails with Mixture Feeds Composed of Crab Waste Meal, Leubim Fish Waste Meal, and Broken Rice Grains as Partly Substitution of Commercial Diet on Egg Quality." ANIMAL PRODUCTION 22, no. 2 (December 16, 2020): 82–91. http://dx.doi.org/10.20884/1.jap.2020.22.2.50.
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In rearing quails, many attempts have been done to reduce feed cost among other things by replacing partly commercial diet with numerous alternative feed sources such as crab waste meal (CWM), leubim fish (Canthidermis maculata) waste meal (LFWM), and broken rice grains (BRG). The purpose of this study was to determine the effect of using a mixture feeds composed of CWM + LFWM + BRG as a substitute for commercial laying chicken diets on the quality of quail eggs. This research was conducted at the Field Laboratory of Animal Husbandry and the Laboratory of Poultry Production Science, Syiah Kuala University. This study used 80 female quails (Coturnix-coturnix japonica) females aged 4 weeks. The treatment was feeding quails with the commercial diet of laying hen (324-1M) of which 0, 10, 20, and 30% of the diets was substituted by the mixture feeds composed of CWM + LFWM + BRG. The study was performed into block randomized design (BRD) consisting of 4 treatments and 4 replicate blocks. The blocks were established based on the different initial body weights of 4-week ages of female quails. Each treatment was an experimental unit consisting of 5 female quails each. The measured parameters were Yolk Index (YI), yolk color, Albumen Index (AI), eggshell thickness, and egg weight. The results of the study indicated that using up to 30% mixture feeds composed of 7,5% CWM + 9,1% LFWM + 13,4% BRG as a substitute for commercial laying chicken diets most significantly increased yolk index and yolk color of quail eggs. However, the albumen index, eggshell thickness, and egg weight were not significantly affected.
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Redka, A., V. Bomko, M. Slomchynskyi, A. Chernyavsky, and S. Babenko. "Efficiency of use of zinc mixed liganding complex in compound feeds for chicken broilers." Tehnologìâ virobnictva ì pererobki produktìv tvarinnictva, no. 2(150) (December 17, 2019): 105–12. http://dx.doi.org/10.33245/2310-9289-2019-150-2-105-112.
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The effectiveness of the use of zinc mixed-ligand complex in feed for broiler chickens of the Cobb-500 was studied. It was found that the reduction of the dose of introduction into compound feeds for broiler chickens, for periods of cultivation of 5-21, 22-35 and 36-42 days, of mixed zinc complex from 60, 50 and 40 g to 45, 37,5 and 30 g of the element per 1 ton of compound feed shows the best results. Live weight of broilers of the 2nd group, which depending on the growing period 5-21, 22-35 and 36-42 days, consumed feed with mixed ligand complex Zinc in a dose corresponding to the introduction of 37.5, 30.0 and 25, 0 g of element per 1 ton of compound feed was the highest and at the age of 42 was 2669.2 g, which was 7.1% higher than that of the control group chickens. It was found that the use of zinc mixed-ligand complex in the doses corresponding to the introduction, by age, 37,5, 30,0 and 25,0 and 30,0, 25,0 and 20,0 g of element per ton of compound feed, compared with the introduction of mixed ligand complex at doses corresponding to the introduction of 1 t of compound feed 45, 37.5 and 30 g of element, increases the average daily increments for the whole period of the experiment by 4.2 and 2.9 g, or 7.2 (P <0, 05) and 5.1%. Feeding mixed fodder with zinc mixed ligand increased sales revenue by 28.4% and profitability of broiler meat production from 37.2% to 47.1%. Thus, the profit per head increased from 22.6 to 28.65 UAH. As a result of the production check, it is established that, provided the same selling price for the products, the use of compound feeds with the addition of zinc zinc-ligand complex has a positive effect on the conservation of livestock, increases the weight of the carcass, reduces feed costs for growth, which leads to increased profits increasing the level of profitability of meat production of broiler chickens. Key words: zinc mixed ligand complex, zinc sulfate, broiler chickens, daily average gain, control group, experimental group, economic efficiency, production check.
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Karkach, P., M. Kostiuk, and Yu Mashkin. "Correction of calcium norms during the feeding day of laying-hens." Tehnologìâ virobnictva ì pererobki produktìv tvarinnictva, no. 1(164) (May 25, 2021): 42–47. http://dx.doi.org/10.33245/2310-9289-2021-164-1-42-47.
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Highdem and for eggs requires a significant increase in production volumes subject to the standards of their quality. One of the components of the egg providing its safety and quality is the shell, which accounts for about 10-12% mass of the egg. The formation of eggs in chickens is a complex process, which is carried out within 24-27 hours, from which about 17-20 hours is given to form the shell. Since the main number of eggs chickens are demolished in the first half of the day, most of the calcification period of the egg shel falls on the dark period of day when the chicken stops to eat. A study was conducted to in vestigate the influence of an increased dose of calcium in the form of limestone particles when feeding it in the afternoon on the productivity and quality of chicken eggs. For this, two groups of laying-hens were formed, the mix feed for which consisted of the same components of cereal and protein-vitamin feeds, but was distingueished by calcium content, namely: in the control group in the mix feed, which was fed both in the morning and in the afternoon, was 3,5% calcium in the form of limestone thin and coarse grinding. The chickens of the experimental group in the morning were fed by mix feed with a calcium content of 1.5%, and in the afternoon - with a calcium content of 7% in the form of coarse limestone. Based on the research, it was found that during the 30-week period of productivity, the survival of chickens in the experimental groups was the same. Chickens of the experimental group reached 95% egg production at the age of 186 days, which his 5 days before the control group. Egg production on the middle and initial laying-hens in the experimental group for the whole production period was 178,4 eggs and 173,3 eggs, which is 6,2 and 7,0 eggs more than in the control group. The feeding of the chickens of the experimental group in the afternoon of mix feeds with an elevated calcium content contributed to an increase in the mass of eggs by 1,7 g, the exit of the egg mass on the middle and the initial laying-hens on 0,66 and 0,7 kg, the number of food eggs categories XL and L on 0,5 and 5.4%, compared with the control group of chickens, which was fed both in the morning and in the afternoon, a mix feed containing 3,5% calcium in the form of limestone thin and coarse grinding. Key words: laying-hens, mix feed, calcium, egg production, eggs mass, eggs quality.
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Giannenas, Ilias, Athina Tzora, Ioannis Sarakatsianos, Achilleas Karamoutsios, Stylianos Skoufos, Nikolaos Papaioannou, Ioannis Anastasiou, and Ioannis Skoufos. "The Effectiveness of the Use of Oregano and Laurel Essential Oils in Chicken Feeding." Annals of Animal Science 16, no. 3 (July 1, 2016): 779–96. http://dx.doi.org/10.1515/aoas-2015-0099.
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AbstractThe objective of this experimental study was to investigate the effects of essential oils of oregano, laurel and their combination on growth performance, intestinal microbiota and intestinal morphology as replacers of antibiotic growth promoters, as well as on the antioxidant capacity and mineral content of breast and thigh meat. A total of 256 day-old broiler chickens were randomized into 4 groups with 4 replicates. Control group received a basal corn-soybean diet, whereas the other experimental groups received the basal diet plus 25 mg/kg oregano essential oil, 2.5 mg/kg laurel essential oil or their combination, respectively. Chickens had free access to water and feed. Body weight gain and feed to gain ratio was calculated for the total fattening period and mortality was daily recorded. Intestinal microbiota was enumerated by conventional techniques with selective agar media at the end of the trial at both ileum and caecum. Also, evaluation of intestinal morphology was carried out in small intestine and caecum. At the end of the trial, birds were slaughtered, their carcasses were processed and samples of breast and thigh meat were analyzed for moisture, fat and protein content. Total phenolic content was determined in feeds and breast and thigh meat in order to assess its antioxidant capacity. Mineral content of breast and thigh meat was evaluated by ICP-MS. The results of the trial showed that the group that received oregano or the mixture of oregano and laurel presented better BW and FCR and mortality compared to control group. Bacterial counts for the Lactobacilli and Bifidobacteria were higher in the experimental groups compared to the control group at both ileum and caecum, and total coliforms were lower in caecum in the experimental groups compared to control. Higher values for villus height were found for the oregano supplemented groups compared to control or laurel ones. Oregano supplemented groups showed higher antioxidant capacity of breast and thigh meat compared to control and laurel groups, however no changes in mineral content were noted among the different groups. In conclusion, oregano essential oil alone or as a mixture with laurel essential oil can be used to improve growth performance and gut health in broiler chickens.
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Sudrajat, D., F. Priytana, and H. Nur. "THE QUALITY OF CHICKEN EGG RANSUMS CONTAIN FERMENTED NON-CONVENTIONAL FEED." JURNAL PERTANIAN 10, no. 1 (April 30, 2019): 16. http://dx.doi.org/10.30997/jp.v10i1.1611.
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Non-conventional feeds are generally of low quality so feed fermentation needs to be done to increase its use. This research was conducted to examine the effect of giving fermented feed types on egg quality. This research was conducted in June until August 2018 in the cage of Cibadak poultry in Sukabumi district. The animals used in this study were 24 Brown Strain Isa Brown laying hens as many as 24 birds. The study used a completely randomized design (CRD) consisting of 6 treatments and 4 replications. The treatment in this study was R0 = 100% Basic Ration, R1 = 90% Basic ration + 10% fermented non conventional ration, R2 = 80% Basic ration + 20% fermented non conventional ration, R3 = 70% Basic ration + 30% Non ration conventional fermented, R4 = 60% Basic ration + 40% Fermented non-conventional ration, R5 = 50% Basic ration + 50% Fermented non-conventional ration. The data obtained were analyzed using Analysis of variance (ANOVA), if the data showed results that were significantly different (P <0.05) followed by the Duncan test. The results showed that substitution feeding did not significantly influence the egg index, egg white weight, Haugh Unit value, and shell thickness. Therefore, it can be concluded that demonstrable non-conventional feed can be given in ration of laying hens up to 50%.
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Onibi, G. E., A. P. Owoyemi, and O. O. Akinyemi. "DIETS AND DIETARY INGREDIENTS SELECTION BY BROILER CHICKEN: EFFECTS ON GROWTH PERFORMANCE, CARCASS QUALITY AND ECONOMICS OF PRODUCTION." Nigerian Journal of Animal Production 26 (March 11, 2021): 35–42. http://dx.doi.org/10.51791/njap.v26i1.2825.
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A total of 90day – old Hypeco broiler chicks were used in a choice-feeding trial to investigate whether meat-type chicken could select adequate nutrients that would support fast growth rate from a choice of imbalanced diet and feed ingredients. Three diets were used: a control diet (diet A= 200g/kg CP, 3031 kcal/kg ME) and two test diets; a low protein, high-energy diet (diet B=166g/kgCP, 3021 kcal/kg ME) and a low-protein, low-energy diet (diet C=168g/kgCP, 2838 kcal/kg ME). The diets were fed singly. The test diets were also used in a choice-feeding with ground maize and soya-bean meal (SBM). The study lasted for 5weeks and the response criteria included growth performance, carcass and organ characteristics, and economics of production. Weight gain and feed conversion ratio were significantly (P < 0.01) and (P < 0.001 respectively) influenced. Birds on the control diets had the highest weight gain and best feed conversion ratio. Birds on the low-protein, high-energy diet had performances not significantly (P > 0.05) lower than the control. The low-protein, low-energy diet depressed performance. Feeding the imbalanced diets (diets B and C) singly produced better performances than feeding them with a choice of dietary ingredients. Birds exhibited selection potentials by selecting the ground maize and SBM to compensate for deficiencies in the imbalanced diets but not at a level adequate enough to improve performances. Only the relative chest weight was significantly (P < 0.05) influenced amongst the carcass and organ weights measured. It decreased with decreasing feed quality. Economics of production showed that low quality and cheaper priced feeds do not necessarily give higher income and profit. The benefits of feeding single balanced diets and the possibility of decreasing the protein content of broiler finisher diets without compromising profits were revealed. It was suggested that broiler chicken appeared to select nutrients for maximize economic performance and that feed quality control should be enforced.
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Krejčí-Treu, Tereza, Eva Straková, Pavel Suchý, and Ivan Herzig. "Effect of Vegetable Oil Fortified Feeds on the Content of Fatty Acids in Breast and Thigh Muscles in Broiler Chickens." Acta Veterinaria Brno 79, no. 9 (2010): S21—S28. http://dx.doi.org/10.2754/avb201079s9s021.
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The main objective of this work was to compare the effect of six vegetable oils added to feeding mixtures that were administered to broiler chickens on the content of major fatty acids in chicken meat. The experiment started with 90 one-day-old Ross 308 meat hybrid male chickens that were divided into six groups. Chickens were fed complete feeding mixtures for the prefattening (BR1), fattening (BR2), and post-fattening (BR3) of broiler chickens. The BR1 feeding mixture was administered to chickens aged 1-10 days, the BR2 feeding mixture was given from Day 11 to Day 30, and the BR3 feeding mixture was then administered until Day 42. The BR1 feeding mixture that was administered to all six groups during the first ten days of the experiment was supplemented with soybean oil. BR2 and BR3 feeding mixtures used to feed chickens aged 11-42 days were fortified with soybean oil (SO Group), rapeseed oil (RO Group), sunflower oil (SFO Group), flaxseed oil (FO Group), olive oil (OO Group), and evening primrose oil (EPO Group). The vegetable oils used differed by the composition of fatty acids, particularly by the content of oleic acid, linoleic acid, α-linolenic acid. The use of the above-described experimental diets in young broilers from Day 11 to 42 had a significant effect on the content of fatty acids in the fat from breast and thigh muscles. The content of α-linolenic acid in breast and thigh muscles of broilers that received the feed containing flaxseed oil (21.16 g/100 g of oil and 17.13 g/100 g of oil, respectively) significantly increased (p ⪬ 0.01). The highest content of linoleic acid (p ⪬ 0.01) in breast and thigh muscles was found in chickens that were fed the feed containing primrose oil (59.13 g/100 g and 51.71 g/100 g). A significant increase (p ⪬ 0.01) in the level of oleic acid was detected in both breast and thigh muscles of broilers that received olive oil fortified feed (52.44 g/100 g and 43.70 g/100 g of oil). No significant variation was found in the content of palmitic acid and palmitooleic acid. The levels of oleic acid, linoleic acid and α-linolenic acid in feeding mixtures correlated with those found in breast and thigh muscles (r = 0.88; 0.94 and 0.99; r = 0.99; 0.98 and 0.99).
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Zeryehun, Tesfaheywet, Meseret Asrat, Negassi Amha, and Mengistu Urge. "Effects of supplementation of different levels of garlic (Allium sativum) on selected blood profile and immunity of white leghorn chicken." Biotehnologija u stocarstvu 33, no. 3 (2017): 333–48. http://dx.doi.org/10.2298/bah1703333z.
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The study was conducted to evaluate the effect of feeding different levels of garlic powder inclusion on selected blood profile and immunity of white leghorn chicken. A total of 180 chickens (156 layers and 24 cocks) were randomly distributed in to 12 pens and assigned to 4 treatments. Treatments were rations containing 0, 1, 2, and 3% garlic powder for T1, T2, T3 and T4, respectively. The CP and ME content of treatment rations were 16-16.6% and 3021.31-3244.4 kcal/kg DM, respectively. Blood profile parameters were determined using established laboratory methods. The value of hemoglobin (Hb) increased insignificantly due to supplementation of different levels of garlic powder. Total white blood cell count (TWBC), basophile, lymphocytes, heterophils and monocytes were not affected (P > 0.05) by treatments. But, slight rise in lymphocyte and heterophil counts were observed in garlic supplemented groups which may be due to immuno-stimulatory effects of garlic. Packed cell volume (PCV) and eosinophils were affected (P < 0.05) by treatments, PCV (38.1, 45,2,41.5 and 39. 2), eosinophils (4.9, 3.2, 3 and 2.8), for T1, T2, T3, and T4, respectively. Mean values of total protein (g/dl) was not affected (P > 0.05) by treatment. The mean values of total immunoglobulin (gm/dl) (3.53, 4.09, 5.58, 3.04) was significantly (P<0.05) higher in T3 compared to other treatments. Generally, inclusion of 2% garlic powder has significantly improved total immunoglobulin. But it significantly lowered eosinophils compared to control group. The present study revealed that mixing layer diets with 1-3% garlic powder could be used in practical layer diets to improve some haematological and immunoglobulin values which might consequently improve blood circulation and immunity of White Leghorns Chickens.
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Helal, Tarek, Eman Abden, and Ahmed Ammar. "Fungal Contaminants in Commercial Chicken Feeds and Effect of Feeding Aflatoxin B1 Contaminated Ration on Validity of Live Hitchner B1 Vaccine Immunogenicity." Journal of Current Veterinary Research 1, no. 1 (June 1, 2019): 49–59. http://dx.doi.org/10.21608/jcvr.2019.36561.
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Ochieng, B. A., W. O. Owino, J. N. Kinyuru, J. N. Mburu, M. G. Gicheha, and L. Kabuage. "Effect of Low Tannin Sorghum Based Feed on Physical and Nutritional Quality of Layer Chicken Eggs." Journal of Food Research 7, no. 4 (May 25, 2018): 94. http://dx.doi.org/10.5539/jfr.v7n4p94.
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This study was carried out to evaluate the effect of replacing maize with low tannin sorghum (LTS) in layer feed on the physical and nutritional quality of eggs of layers at peak egg production stage. One hundred and twenty, 30-weeks old hens were grouped into three blocks of forty birds per block and were subjected to three different diets: 100%Maize, 50%Maize50%LTS and 100%LTS for 8 weeks. Eggs were collected on the 4th and 8th week of feeding trial. The results showed that eggs had statistically similar weights, amounts of protein, fat, Vitamin E and Vitamin A. The colour of egg yolks increased in lightness and reduced in hue and Chroma significantly across all the dietary blocks with increase in LTS while cholesterol content decreased. The saturated fatty acid content in the albumin and yolk oil extract remained constant irrespective of the period of feeding or variation of Maize and LTS content. The Monounsaturated fatty acid content decreased significantly (P=0.0003) during the whole trial diet period. The Polyunsaturated fatty acid content remained constant for the albumin (P=0.4095) while the yolk showed an increase (P=0.1162) from the initial 15.82±0.57 g/100g on the 4th week to 24.05±7.25 g/100g on the 8th week for diets with 100%Maize. 50%M50%LTS increased from 14.59±0.16 to 21.48±4.19 g/100g and 100%LTS had its Polyunsaturated fatty acid content decline from 13.36±0.31 to 10.71±0.32g/100g. This study indicates that LTS can replace Maize as a source of energy in chicken feeds with no adverse effects on the quality of the eggs.
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Erbland, Patrick, Andrei Alyokhin, L. Brian Perkins, and Michael Peterson. "Dose-Dependent Retention of Omega-3 Fatty Acids by Black Soldier Fly Larvae (Diptera: Stratiomyidae)." Journal of Economic Entomology 113, no. 3 (March 24, 2020): 1221–26. http://dx.doi.org/10.1093/jee/toaa045.
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Abstract Black soldier fly larvae, Hermetia illucens (L.), are used to convert organic waste streams into insect-based animal feeds. We tested their ability to retain alpha-linolenic acid (ALA), eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA) from feeding substrates, which has important implications for their use in aquaculture. When supplementing a chicken feed diet with increasing concentrations of salmon oil (0–42%) over an increasing number of days (0–8), the concentrations of the three omega-3 acids in larvae increased significantly. Larval survival and biomass accumulation were not affected. Supplementing a chicken feed diet with increasing concentrations (0–14%) of Tetraselmis chui Butcher (Chlorodendrales: Chlorodendraceae) microalgae paste also significantly increased ALA and EPA contents of the harvested larvae. However, microalgae also decreased survival, harvested biomass, and individual growth of larvae feeding on the diet with the highest supplement concentration (14%). DHA was not detected in any microalgae diet or subsequent larval tissue samples. All three omega-3 polyunsaturated fatty acids tested in this study were accumulated in dose-dependent manner, with quadratic, and occasionally linear, equations providing the best description of the observed relationships. There were significant negative correlations between several fatty acids, indicating that they may replace one another in living larvae. Our findings confirm that black soldier fly larvae can retain ingested fatty acids and change fatty acid profiles in their tissues accordingly. However, optimizing nutrient content of harvestable larvae is likely to be more complicated than simply enriching their diets with omega-3 fatty acids.
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Ng’ang’a, J., S. Imathiu, F. Fombong, A. Borremans, L. Van Campenhout, J. Vanden Broeck, and J. Kinyuru. "Can farm weeds improve the growth and microbiological quality of crickets (Gryllus bimaculatus)?" Journal of Insects as Food and Feed 6, no. 2 (April 8, 2020): 199–209. http://dx.doi.org/10.3920/jiff2019.0051.
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Farming of edible insects has been proposed as a means to reduce current practices of harvesting from the wild. While farming could relieve the pressure on wild populations, as well as on their natural habitats, and generate a continuous supply of edible insects to the consumers, the high cost of commercial chicken feeds is still a challenge to many farmers. The aim of this study was to investigate whether the partial replacement of commercial chicken feed with the farm weed, wandering Jew (Commelina sinensis), would have an impact on weight gain and microbial quality of farmed field crickets (Gryllus bimaculatus). Therefore, we have experimentally compared two types of feed: (1) starter commercial chicken feed only (SO); and (2) starter commercial chicken feed supplemented with fresh wandering Jew weeds (S+W). After a feeding period of thirty days, the final body weight differed significantly (P=0.026) between crickets fed with SO and with S+W, which averaged at 1.11 and 1.39 g, respectively. Generally, high counts of total aerobic, Enterobacteriaceae, lactic acid bacteria, bacterial endospores, yeasts and moulds were observed in both experimental groups. However, bacterial endospore counts of S+W fed crickets (2.7 log cfu/g) were significantly lower (P=0.021) than these of the SO fed ones (3.9 log cfu/g). Metagenetic analyses indicated that Proteobacteria, Firmicutes and Tenericutes were the most abundant phyla, while members of the family Coxiellacea, and the genera Lactobacillus, and Spiroplasma were the most abundant operational taxonomic units (OTUs). Concerning the food safety, a few OTUs could be associated with potential food pathogens, such as Clostridiaceae, Staphylococcus and Enterobacteriaceae. In summary, the inclusion of fresh wandering Jew weeds in commercial starter chicken feed produced crickets with increased body weight and improved microbial quality.
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Chen, Jiashun, Fang Wang, Yexin Yin, and Xiaokang Ma. "The nutritional applications of garlic (Allium sativum) as natural feed additives in animals." PeerJ 9 (August 10, 2021): e11934. http://dx.doi.org/10.7717/peerj.11934.
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Garlic (Allium sativum) is an essential vegetable that has been widely utilized as seasoning, flavoring, culinary and in herbal remedies. Garlic contains several characteristic organosulfur compounds, such as diallyl sulfide, allicin (diallyl thiosulphate), γ-glutamylcysteine, and S-allyl cysteine (alliin) and ajoene, which garlic has beneficial effects on inflammation, oxidative stress markers, hypertension, hyperlipidaemia and endothelial function in vitro or in animal model. These bioactive molecules are also playing pivotal role in livestock and fisheries production apart from its application in humans. Supplementation of animal feed with garlic and its related products is consistent with the modern agricultural concept of organic animal husbandry. This review compiles the information describing the effects of feeding garlic and its extracts on selected performance parameters in animals (chicken, rabbits, ruminants, pigs and fish). This review may provide reference for scientists and entrepreneurs to investigate the applications of feeds added with garlic and allicin by-products for the improvement of animal husbandry and aquatic production.
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Rumiyani, Tri, Wihandoyo (Wihandoyo), and Jafendi Hasoloan Purba Sidadolog. "PENGARUH PEMBERIAN PAKAN PENGISI PADA AYAM BROILER UMUR 22-28 HARI TERHADAP PERTUMBUHAN, DAN KANDUNGAN LEMAK KARKAS DAN DAGING." Buletin Peternakan 35, no. 1 (June 27, 2012): 38. http://dx.doi.org/10.21059/buletinpeternak.v35i1.589.
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<p>The experiment was conducted to study the effect of stuff feeding given during 22 to 28 days of ages on growth, meat fat and abdominal fat of broiler. Ninety broiler males (J) and 90 broiler females (B) were divided into 6 treatments groups with 3 replications of 10 broiler chickens each. The treatment were control (K) chicken which was fed with commercial diets from DOC to 42 days of age, DJ and P chickens were fed with corn bran (DJ) or pollard (P) from 22 to 28 days and continued with commercial feeding until 42 days. Feeds for DJ and P treatment was supplemented with B-12 mineral. Data collected were body weight, feed consumption, feed conversion, carcass weight, meat as well as abdominal fat. The data were analyzed by analysis split-plot design (3 feed treatments, 2 sex treatments and 3 phases) and then were tested by DMRT. The results showed that the feed treatments (K, DJ, and P) significantly affected (P<0.05) the body weight (1583, 1289, and 1213 g), feed consumption (1180, 1051, and 1035 g), feed conversion (1.67; 2.62; and -1.89), percentage of abdominal fat (1.80, 2.03, and 1.29%). Sex (J and B) significantly influenced (P<0.05) on body weight, feed conversion, percentage of abdominal fat, but feed consumption, percentage of carcass, meat fat, had no significant differences. The interaction of sex and feed showed significant influence (P<0.05) on meat fat at 22 day of ages. The interaction of feed, sex, and phase had significant influence (P<0.05) on body weight and feed consumption. It could be concluded that stuff feeding decreased body weight, feed consumption, percentage of abdominal fat, but increased feed conversion and meat fat.</p><p><br />(Key words: Broiler chicken, Sex, Feed stuff, Broiler Starter, Corn bran, Pollard)<br /><br /></p>
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OYETAYO, Adedayo M., and Faith I. AKINNIBOSUN. "Investigation of the Effect of Maize Substitution with Fermented Cashew Apple Residue on Broiler Chicken Growth." Notulae Scientia Biologicae 11, no. 3 (September 30, 2019): 396–400. http://dx.doi.org/10.15835/nsb11310539.
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In this study, the effect of substitution of maize with fermented cashew apple residue (CAR) on the growth of broiler chicken was investigated. Cashew apple residue was subjected to fermentation with Lactobacillus plantarum, and then used to formulate broiler starter diet by substituting/mixing it with maize in the ratios 0:100, 50:50 and 100:0 for maize and CAR respectively. The diet was fed to four groups of day old broilers for six weeks during which feed intake and weight gained were monitored. The bacterial count increased from 5.6 × 106 at the beginning of the fermentation to 31.5 × 106 cfu/g at 72 hr. Also, the pH of the CAR was reduced gradually over the 72 hours period of fermentation coupled with increase in the total titratable acidity. The nutritional composition analyses of the compounded diets showed no significant difference (p≤0.05) between the crude protein content of the formulated feed (21.02±0.15 - 21.12±0.15%) and the commercially available feed (21.50±0.00). However, the crude fibre content of the control (3.10±0.00) was lower than the content of the formulated diets. After feeding the chicks for two weeks, there was no significant difference in the average weight gained by the chicks fed the control diet and those fed with fermented CAR-based feeds. The cumulative feed consumption in the groups ranged from 2.57 kg (diet C) to 2.91 kg (diet A). These results suggest that fermented CAR may be used as alternative to maize in broiler feed formulation
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Ndoboli, Dickson, Fredrick Nganga, Ben Lukuyu, Barbara Wieland, Delia Grace, Amrei von Braun, and Kristina Roesel. "The misuse of antiretrovirals to boost pig and poultry productivity in Uganda and potential implications for public health." January-July 7, no. 1 (April 7, 2021): 88–95. http://dx.doi.org/10.14202/ijoh.2021.88-95.
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Background and Aim: Since 2015, local newspapers reported that pig and poultry farmers in Uganda use antiretroviral drugs (ARVs) to promote growth in animals and control diseases. This study was conducted to assess farmers' knowledge, attitude and perceptions about the use of antiretroviral drugs as boosters in pigs and poultry and the possibility of detecting the antiretroviral drugs in meat using available laboratory methods. Materials and Methods: In 2019, a cross-sectional study was conducted in ten districts in Uganda. In 20 focus group discussions with 100 pig and poultry farmers and 70 animal health service providers, we assessed the use of ARV in livestock enterprises. Subsequently, samples of chicken, pigs, and animal feeds were collected from volunteer participants, and screened for residues of saquinavir, lopinavir, nevirapine, and efavirenz using liquid chromatography-tandem mass spectrophotometer. Results: Participants in all ten districts were predominantly smallholder farmers supplying the local markets. All groups reported the use of ARVs in pigs and broiler birds but not in layer hens. In the absence of good quality feeds, the motivation for feeding ARVs was rapid animal weight gain, as well as the control of animal diseases, for which farmers have no alternative solutions. ARVs were obtained within the community for free, against cash, or in-kind payment. Residues of lopinavir were detected in four, and saquinavir in seven districts, and all three sample matrices. Conclusion: Our study findings confirm anecdotal news reports on ARV use in livestock. While our findings are not generalizable to the whole country, they call for a representative follow-up. As the drugs were detected in tissues destined for human consumption, the potential risk to human health warrants further investigation.
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Sobolev, O. I., B. V. Gutyj, S. V. Sobolieva, O. O. Borshch, V. A. Liskovich, O. I. Prystupa, N. V. Demus, et al. "Chemical composition, energy and biological value of broiler chicken meat caused by various doses of selenium." Ukrainian Journal of Ecology 9, no. 4 (December 2, 2019): 622–27. http://dx.doi.org/10.15421/2019_799.
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From the standpoint of modern ideas, the normal functioning of the poultry body and full implementation her of the genetic potential is impossible without the presence of selenium in the diet. The biochemical diversity of selenium puts it in a number of priority trace elements. Scientists who were studying the effects of selenium on poultry body and paid relatively little attention to the quality of the meat. In scientific experiment are studied the effect of additives different doses of selenium in compound feed on the chemical composition, energy and biological value of meat of the cross chickens-broilers COBB 500. Introduction of selenium into the feed for broiler chickens in the doses which are studied (0.3 mg/kg, 0.4 and 0.5 mg/kg) did not significantly affect to the quality of their muscle tissue although it positively affected on some indicators that characterizing its chemical composition, nutritional and biological value. Among the experimental groups, the best meat quality indicators were in the second group of chickens for which was introduced into the feed selenium from the calculation of 0.3 mg/kg. When feeding mixed feeds with selenium additives to broiler chickens it was found that it is likely to increase the concentration of this trace element in muscle tissue by 60.6-100% (P?0.001), which does not exceed the maximum permissible level (MPL). Consumption of selenium-enriched meat of broiler chickens within the limits of the physiological norms recommended in Ukraine will ensure the daily requirement of an adult in this trace element by 23.6-29.4%. This meat product can be especially useful for people who live in regions with low levels of selenium in the natural environment.
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Deko, Maria Karolina, Irfan H. Djunaidi, and M. Halim Natsir. "Efek penggunaan tepung umbi dan kulit bawang putih (Allium sativum Linn) sebagai feed additive terhadap penampilan produksi ayam petelur." Jurnal Ilmu-Ilmu Peternakan 28, no. 3 (December 10, 2018): 192. http://dx.doi.org/10.21776/ub.jiip.2018.028.03.02.
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This study aims to evaluate the effect of giving Garlic and Allium sativum (TUKBP) Flour as feed additives on various levels of feeding in feed consumption, Hen Day Production (HDP), egg mass, feed conversion and Income Over Feed Cost (IOFC) in laying hens. A total of 320 laying hens strain Isa Brown produced by PT. Charoen Pokphand aged 30 weeks, divided into 8 treatments and 4 replications each replication using 10 chickens. The experimental design used was a Completely Randomized Design (CRD). Eight treatment groups were as follows: basal feed + 0% TUKBP as negative control feed (P0), basal feed + virginiamycin antibiotic 0.015% as positive control (P1), and basal feed + TUKBP 0.25% (P2), 0, 50% (P3), 0.75% (P4), 1.00% (P5), 1.25% (P6) and 1.50% (P7). Data were analyzed using ANOVA test, if there were significant differences between treatments continued with Duncan's Multiple Range test. The results showed that feed with the addition of TUKBP can improve the appearance of laying hens, although it has not matched the feed with the addition of antibiotics. The use of TUKBP to the level of 1.50% in feed does not cause negative effects for laying hens. Administration of TUKBP at 1.00% level (P5) is able to replace synthetic antibiotics or as organic additive feeds in laying chicken feed.
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Zonenberg, Łucja, and Aleksandra Drażbo. "The effect of increased methionine in broiler chicken diets on the quality of breast muscles at different times of vacuum storage under refrigeration." Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego 14, no. 2 (June 28, 2018): 49–60. http://dx.doi.org/10.5604/01.3001.0013.5143.
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The aim of the study was to determine the effect of different levels of DL-methionine in feed for broiler chickens on the quality of vacuum-packed breast muscles stored under refrigeration. The material for the study was 72 breast muscles from 35-day-old broiler chickens fed diets with varying content of DL-methionine. The control group received a basal diet without additional DL-methionine, while the experimental groups received compound feeds supplemented with 0.08% or 0.24% DL-methionine. At 35 days of age, 24 birds from each group were randomly selected and experimentally slaughtered. After the carcasses were dissected, 8 right breast muscles were selected from each feeding group and analysed immediately after cooling. The remaining muscles were vacuum-packed and after 7 and 14 days of storage physicochemical and sensory analyses were performed to assess the influence of storage time on changes in their quality. The methionine level was not found to affect the sensory properties of the breast muscles, but the meat of birds receiving a higher level of this amino acid had better shear force and water-holding capacity in comparison to the control group. After just 7 days, the results of the analyses of vacuum-packed refrigerated muscles showed a negative effect of storage time on the capacity of the muscle tissue to bind water, as well as changes in the proportion of red colour in the muscles. However, it is worth noting that the sensory quality of the muscles deteriorated only after 14 days of storage.
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Merzlyakova, O. G., and V. A. Rogachev. "The use of probiotics based on strains of the genus Bacillus in quail feeding." Siberian Herald of Agricultural Science 49, no. 2 (May 22, 2019): 70–76. http://dx.doi.org/10.26898/0370-8799-2019-2-9.
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The use of trial specimens of probiotics based on strains of Bacillus subtilis, Bacillus licheniformis and their consortium was experimentally proved to be effective for quail feeding during their growth. The dynamics of live weight gain of quails was monitored. The experiment lasted for 60 days and was carried out in compliance with the standard methods. Quails that were studied were of the Japanese breed formed in four groups of 80 heads in each: one control group and three experimental ones at the age of one day. Quails were kept in a battery cage with all the required environment conditions met. All the groups were fed on the main (control) diet, developed taking into account the age and physiological characteristics of quails. However, birds of experimental groups 1-3 were additionally fed on probiotics based on strains Bacillus subtilis, Bacillus licheniformis and their consortium in the amount of 150 g/t of feed, respectively. The effect of new strains of probiotics and their consortium was tested during the study by the following parameters: the survival rate of birds, intensity of chicken growth, meat productivity and hematological indicators. The optimum variant of probiotics introduction into the diet of quails during their growth period was determined. The recommendations for the preparation of compound feeds with the use of probiotic supplements were developed. The chemical composition of quail feed and meat was studied in the biological laboratory by conventional methods of zootechnical analysis. The introduction of the consortium of strains Bacillus subtilis and Bacillus licheniformis in the amount of 150 g/t led to an increase in the survival rate of quails by 4.0%. The average daily live weight gain increased by 2.57%, feed consumption per one unit of produce decreased by 6.48%. When feeding quails on the consortium of probiotic strains Bacillus subtilis and Bacillus licheniformis in this rate, the mass of the eviscerated bird carcass increased by 3.61%, the protein content in the meat and its biological value increased by 1.06 and 11.11%, respectively. The hematological characteristics of the chickens remained within the physiological norm.
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Kotsyumbas, G., A. Kostyniuk, V. Lemishevskyi, and Yu Fedyk. "Morphological features and morphometric indices of the mucous membranes of different parts of the intestines of broiler chickens for feeding feeds with probiotic additive." Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies 20, no. 87 (April 26, 2018): 98–106. http://dx.doi.org/10.15421/nvlvet8720.
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The article presents the results of histological, histochemical searches and histomorphometric indices of villous height, depth of the crypt of the mucous membrane of the duodenum, jejunum and caecum of broiler chickens, fed a feed with probiotic additive «Probion forte» at a dose of 1 g/kg for 42 days in a row. The experiments were carried out on broiler chickens of the «Kobb-500» breed under vivarium conditions. Two experimental groups of broiler chickens were formed, with a body weight of 37–40 g, with 30 heads in each: First group was received feed with the probiotic «Probion forte» at a dose of 1 g/kg, and the second-control group, which was fed the main ration without the addition of any preparation. At 15, 30 and 42 days of the experiment, 10 chicks from each group were withdrawn from the experiment, an autopsy was carried out and samples from the duodenum, jejunum and the i caecum were taken, which were fixed in 10% neutral formalin solution, Carnoua and Buena liquid, followed by paraffin filling. Gisto-cutters were made, stained with hematoxylin-eosin, by Stidman and McManus. For the histological, histochemical, histomorphometric search of the mucous membrane of the duodenum, jejunum and caecum of chickens of the experimental group, It was established that the use of «Probion forte» in a dose of 1 g/kg with food for chicken broilers in the process of growth and development was contributed to: activation of the mitotic and synthesizing functions of cells, active hyperplastic and hypertrophic processes in the structural elements of the mucous membrane of the investigated sections of the intestines of broiler chickens, as a result of which was expressed by an increase in the height of the villi and the depth of the crypts. In the broiler chickens of the experimental group it was most likely increased the height of the villi in the duodenum at 15 and 42 days; in the jejunum, the probable increase in the height of the villi was noted at 15 and 30 days, and in the caecum - at 30 and 42 days of the experiment. At the same time, the height of columnar epitheliocytes, which was located on the villi of the jejunum of animals of the I group, was 31.5 μm and 24.9 μm in control. At the same time, active formation of mucus-like cells of the duodenum, jejunum and caecum, rich in glycosaminoglycans and glycoproteins, has been established, which contributed to the formation of a thick mucosal biofilm. The latter serves as a liquid phase in which the movement of cells is carried out, as well as an important barrier to the action of enzymes, pathogens and conditionally pathogenic microorganisms. An increase in the number of columnar epithelial cells and cello-like cells of the villi of the intestinal mucus was aimed at improving parietal digestion, absorption and enhancement of the protective function.
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Karasu, Kerem, and Ergin Ozturk. "Effects of Allegations Regarding the Use of Antibiotics and Hormones in Diets on Consumer Perceptions, Attitudes and Behaviors towards Broiler Meat Consumption." Turkish Journal of Agriculture - Food Science and Technology 9, no. 4 (April 23, 2021): 675–82. http://dx.doi.org/10.24925/turjaf.v9i4.675-682.3914.
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This research has been carried out to determine the effects of the current misinformation (hormone, antibiotic, feed additives and growth of broiler chickens in a short period) on consumers' view of the poultry meat sector. The survey was conducted in Istanbul province which better reflects the socio-cultural and socio-economic structure of Turkey, and with different demographic structure of 384 people face to face survey method was applied. Questions were asked to determine whether antibiotics and hormones were used in the diet of broiler chickens, and consumers' perceptions, attitudes and behaviors about the reliability of chicken meat. According to the results of the study, 73.4% of the consumers stated that they did not know about the contents of broiler diets. A big majority of the consumers (88.3%) stated that they think hormone is used and 84.6% think antibiotics is used in the feeding of broiler chickens. 78.4% of consumers surveyed stated that they think that broiler chickens are not fed with healthy feed. Also, 70.6% of consumers stated that rapid growth was due to use of antibiotics and hormones. Although the use of hormones and antibiotics as growth promoters in poultry feeds is prohibited, consumers think that they are used as additives and broiler meat is not safe food. According to these results, creating a positive effect on the purchasing decisions of the consumers is important for the sustainability and future of the sector.
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Milczarek, Anna, Maria Osek, Małgorzata Kwiecień, and Magdalena Pachnik. "Influence of raw or extruded soybean seeds in broiler chicken mixtures on rearing parameters, slaughter value and liver histological image." Medycyna Weterynaryjna 73, no. 12 (2017): 764–69. http://dx.doi.org/10.21521/mw.5823.
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The purpose of the study was to compare the effect of feeding broiler chickens with mixtures containing raw or extruded soybean seeds on the performance indices, slaughter value and liver histology of the animals. The research began with an analysis of the chemical composition of selected high protein feeds. A nutritional experiment was then performed on 108 sexed Ross 308 chickens, which were allocated to 3 equal groups (I, II, III). The chickens were reared for 42 days with ad libitum feeding. The birds from the control group (I) received mixtures in which the only high protein component was soybean meal extracted. Extruded soybeans and raw soybeans were fed to chickens in experimental groups II and III, respectively, in quantities that replaced 30% of soybean meal extract protein in the Starter mixture and 50% of this protein in the Grower and Finisher mixtures. During the experiment, the body weight of the birds (BW) and their feed intake (FI) were recorded. At the end of rearing, 12 chicks of body weights representative of their group and sex were slaughtered in each group. The results of the slaughter analysis were used to calculate the percentage of muscles, skin with subcutaneous fat and abdominal fat in the carcass. The weights of selected internal organs were also determined, and then their proportion in the chilled carcass weight was determined. In addition, after slaughter, chicken livers were collected to assess the histological image. Raw soybean meal extrusion resulted in an increase in protein content and a decrease in crude fibre by about 10%. Quantities of individual amino acids in the analysed material were proportional to the protein content. The extrusion of full-fat soybean seeds reduced the content of trypsin inhibitors by more than a half (to 9 mg/g), but the least of these compounds (1.2 mg/g) was found in soybean meal extract. The tannin content of extruded soybeans was about one-third of that of extracted meal and less than one-fourth of that of raw soybean. It was shown that the chickens receiving extruded soybeans reached a weight similar to that of the control group, with similar FCRs for individual rearing periods, whereas the use of raw soybean significantly (P ≤ 0.01) decreased both parameters. In addition, group III had a significantly lower dressing percentage (P ≤ 0.05) and a higher proportion of abdominal fat (P ≤ 0.01) compared to the other groups. The introduction of extruded or raw soybeans into the mixtures increased (P ≤ 0.05) the proportion of total internal organs. The microscopic image revealed that all chickens had a similar, normal histological structure. The results of this study show a beneficial effect of raw soybean extrusion on the nutritional value of soybeans. Extruded soybeans can therefore be recommended as a partial substitute for protein (30% in Starter and 50% in Grower and Finisher) from soybean meal extract in chicken broiler mixtures. Raw soybeans should not be used in the above amounts, mainly because of the clearly worse rearing results....
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Imanto, Philip Teguh, Gede Suwarthama Sumiarsa, and Made Suastika. "PRELIMINARY STUDY ON POPULATION DYNAMIC OF HARPACTICOID COPEPOD Euterpina acutifrons IN CULTURE CONDITION." Indonesian Aquaculture Journal 2, no. 2 (December 31, 2007): 133. http://dx.doi.org/10.15578/iaj.2.2.2007.133-139.
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<p>The most important factor to high mortality rate in larval rearing is feeding success in early larval stage related to kind and size of natural live food. Copepod basically is the main source of natural food in the open ocean having some advantages such as smaller size of nauplii, attractive movement and high nutritional value. Observation on population dynamic of harpacticoid copepod <em>Euterpina acutifrons</em> was carried out using 5-L plastic bucket with initial density 100 ind./L. Green algae <em>Nannochloropsis</em> sp. was added to culture media at density of 50,000 cells/mL as a basic feed and additional feeds given were wheat flour (group A) and chicken liver (group B) at a rate of 50 mg/bucket. The result showed that there was no difference on population pattern in both groups where the incubation time took eight days to hatch, from nauplii to the copepodite stage was three days and from copepodite to adult copepod took five-to-six days. The differences came up from population number: in group (A) the highest number of copepod-bearing-egg was only 133 ind., nauplii production up to 62,833 ind. and number of copepodites was 22,333 ind. lower compared to group (B) with the highest copepod-egg was 308 ind., nauplii was 113,333 ind. and copepodite was 51,167 ind. The conclusion pointed out that the kind of food did not influence population pattern (quality) but gave effect to population growth.</p>
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Barekatain, M. R., and R. A. Swick. "Composition of more specialised pre-starter and starter diets for young broiler chickens: a review." Animal Production Science 56, no. 8 (2016): 1239. http://dx.doi.org/10.1071/an15333.
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The broiler industry has experienced remarkable improvements in productivity owing to high priority placed on genetic programming, nutrition and management practices. Nutrition of the meat chicken is driven by the need to satisfy the constantly increasing genetic potential, resulting in the shortening of the rearing time required to get the bird to market weight. The concept of feeding broilers a more specialised pre-starter diet for the first 10–14 days of age is gaining interest, as this now accounts for more than 20% of the time for grow-out. Specialised diets may be formulated to be highly digestible or aim to provide specific nutrients at a higher level to meet nutritional requirements of the bird. The effectiveness of specifically formulated pre-starter or starter diets depends on potential carryover effect to increase the bird performance up to the market age. There is evidence that some nutrient requirements of birds, digestible amino acids in particular, in the first 10 days of life may be higher than the current industry recommendation. Among cereals, rice with its lower non-starch polysaccharide content may be a better cereal for pre-starter diets than are corn or wheat. Inclusion of fibrous ingredients in low-fibre diets of young broilers may also stimulate gut development and enhance nutrient utilisation, leading to improved bird performance. There are inconsistencies in responses to various feed additives tested specifically for pre-starter diets of broilers. Finally, with an increasing demand for removal of antibiotic growth promoters from all broiler feeds, focus on formulations to ensure sustainable growth at start will gain importance.
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Alkhtib, Ashraf, Dawn Scholey, Nicholas Carter, Gareth W. V. Cave, Belal I. Hanafy, Siani R. J. Kempster, Subbareddy Mekapothula, Eve T. Roxborough, and Emily J. Burton. "Bioavailability of Methionine-Coated Zinc Nanoparticles as a Dietary Supplement Leads to Improved Performance and Bone Strength in Broiler Chicken Production." Animals 10, no. 9 (August 24, 2020): 1482. http://dx.doi.org/10.3390/ani10091482.
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Recently, nanotechnology has been widely adopted in many fields. The goal of this study was to evaluate the potential for amino acid coated nano minerals as a supplement in broiler feed. Zinc was selected as a model mineral for this test and supplementation of nano zinc, both coated and uncoated was compared with organic and inorganic commercial forms of zinc. A total of 48 pens (8 birds each) were assigned to one of the following dietary treatments: Control, methionine-Zinc chelate (M-Zn), nano zinc oxide (Nano-ZnO), and methionine coated nano zinc oxide (M-Nano-ZnO). All experimental diets were formulated with the same total zinc, methionine, protein, and energy content with just the zinc source as a variable. Bird weight, feed intake and feed conversion ratios were recorded weekly, with three birds culled (sacrificed) at day 21 and day 35 for sampling measures. Ileal digestibility of zinc was determined at day 21 and day 35 using titanium dioxide as an inert marker. Blood serum, liver and spleen samples were collected at day 21 and day 35 and analysed for zinc content via inductively coupled plasma mass spectrometry (ICP-MS). Tibia strength and morphometrics were measured from both legs of three birds per pen at day 21 and day 35. The study was conducted at Nottingham Trent University Poultry Unit, UK. The novel method of producing nano minerals coated with amino acids was successfully tested with zinc and material produced to test in the feeding study. Methionine coated nano zinc oxide supplementation significantly improved bird weight gain and the increased feed intake of broilers compared to an inorganic zinc form. Ileal digestibility was also improved with this methionine-nano zinc. Moreover, this supplementation improved the tibia strength of broilers at the age of 21 days, though this was not observed at day 35. Therefore, M-Nano-ZnO could be used to supplement broilers to improve both performance and digestibility with a limited positive impact on bone strength. The results of the current study suggest that the amino acid coating of nano minerals can improve the digestibility of minerals which may have further implications for the field of mineral nutrition in animal feeds.
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Murzha, I. I., V. G. Кеbkо, Yu P. Polupan, M. G. Porhun, L. O. Dedova, and I. M. Zazulya. "LIVE WEIGHT, SAFETY, SLAUGHTER YIELD AND MEAT QUALITY OF BROILER CHICKENS WHEN FED WITH COMBINED BLOOD-FEATHER FEED ADDITIVE." Animal Breeding and Genetics 56 (December 4, 2018): 71–76. http://dx.doi.org/10.31073/abg.56.09.
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Introduction. In recent years, the production of feed additives of animal origin in Ukraine has declined sharply, and the cost of imported additives is very high. At the same time, in our country, the industry of industrial poultry farming has recently received intensive development, in particular, the cultivation and processing of broiler chickens for meat. At the same time, a significant amount of non-food waste from poultry slaughter in many poultry farms is not processed for feed purposes.
Currently, an urgent problem is the organization of processing of non-food waste of poultry for feed purposes at poultry farms of industrial type of cultivation for meat of broiler chickens, primarily from blood and hydrolyzed raw materials. Processing of these wastes for feed purposes will not only give the opportunity to increase the production of high-grade protein feed, but also to significantly improve environmental safety.
The purpose of our research is to study the meat productivity, safety, slaughter yield and quality of broiler chicken meat when feeding a combined feed additive from blood and hydrolyzed raw materials.
Materials and methods of research. Development of an innovative technological line for the production of a combined feed additive from blood and hydrolyzed raw materials was carried out in LLC "Complex Agromars" (village of Havrylivka, Vyshgorod district of Kyiv region), and research on the effectiveness of feeding a combined feed additive from blood and hydrolyzed raw materials was performed in the production conditions of LLC "Bila Hora" Sniatynskyi district of Ivano-Frankivsk region.
Research result. Development of innovative technological line was carried out in cooperation with engineering and technical staff of LLC "Complex Agromars". The innovative technological line is designed and installed using devices and mechanisms of the company "Haarslev Industries".
In order to study the effectiveness of feeding a combined blood-feather feed additive for the experiment, four groups of broiler chickens of the Cobb 500 cross were formed, 50 heads in each, according to the following scheme: one group of broiler chickens was taken as a control group, and the next three groups – as research groups.
Cultivation of broiler chickens in the experiment was carried out according to the traditional technology of feeding on standard compound feeds adopted in industrial broiler poultry farming, which, depending on the age and growth of chickens, includes 3 phases: "Start" – 14 days, "Growth" – 18 days, "Finish" – 12 days.
According to the scheme of experience, the control group of chickens received standard feed without blood-feather feed additive. The difference in feeding of the broiler chickens of the experimental groups was in different levels of feeding with experimental combined feed additive from blood and hydrolyzed feather raw materials, which, depending on the age and growth of chickens, included in the feed of the I group from 4 to 12%, of the II group – from 3 to 10%, of the III group – from 2 to 8%.
As a result of the studies it was found that at the end of the experiment at 44-day age the average live weight of broiler chickens of the control group was 2630 g, of the experimental group I – 2885 g, of the group II –2790 g, of the group III – 2680 g.
For 44 days of experience the following amounts died: in the control group – 2 chickens, in the experimental group I – 1 chicken, in the group II – no chickens, in the group III – 1 chicken.
Slaughter of broiler chickens and meat tasting was carried out in the company "Bilyi Bereh" of Ternopil region at the age of 44 days.
It was established that the average slaughter yield of 1 carcass of broiler chicken meat was: in the control group – 1920, in the experimental group I – 2106 g, in the group II – 2037 g, in the group III – 1956 g.
The difference in quality of meat of broiler chickens of control and experimental groups by results of tasting was not revealed.
Summary:
In LLC "Complex Agromars" (village of Havrylivka, Vyshgorod district of Kyiv region) designed and implemented an innovative technological line for production of ecologically safe combined feed additive from blood and hydrolyzed feather raw materials from non-food waste slaughter of broiler chickens when growing for meat.
In the course of scientific and economic experiment it was found that the inclusion in the standard traditional feed in different phases of cultivation of broiler chickens for meat of about 4 to 12% of the combined feed additive from blood and hydrolyzed feather raw materials increased their average live weight from 2630g in the control group to 2885 g, and the average slaughter yield of 1 meat carcass – from 1920 g in the control group to 2106 g.
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Akmal, Yusrizal, Suryani Suryani, and Yulidar Yulidar. "Sifat Organoleptik Daging Ayam Broiler yang Diberikan Pakan Terfermentasi Neurospora crassa." Jurnal Ilmu dan Teknologi Peternakan Tropis 6, no. 2 (August 6, 2019): 154. http://dx.doi.org/10.33772/jitro.v6i2.5565.
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ABSTRAK Ampas sagu dan tahu merupakan limbah industri yang dapat dimanfaatkan sebagai pakan ternak. Penelitian ini bertujuan mengkaji sifat organoleptik daging ayam broiler yang diberi pakan fermentasi dari ampas sagu dan ampas tahu dengan Neurospora crassa sehingga dapat meningkatkan kualitas daging ayam. Penelitian dilakukan di peternakan ayam broiler milik masyarakat yang berada di Desa Keude Dua Kecamatan Juli Kabupaten Bireuen selama 4 Minggu. Rancangan yang digunakan adalah Rancangan Acak Lengkap dengan 4 perlakuan dengan 4 ulangan. Tahapan pelaksanaan penelitian yaitu persiapan fermentasi ampas sagu dan ampas tahu dan persiapan kandang selajutnya pemeliharaan ayam broiler dengan pemberian pakan terfermentasi. Uji kesukaan pada daging ayam yang diolah secara dipanggang menggunakan uji organoleptik yang melibatkan 25 orang panelis yang tidak terlatih. Parameter yang dianalisis warna, aroma, rasa, dan tekstur. Perhitungan statistika dilakukan dengan sidik ragam satu arah dan dilanjutkan dengan uji Duncan. Hasil penelitian ini menunjukkan bahwa pemberian pakan yang terfermentasi Neurospora crassa sampai pada tingkat 20% berpengaruh signifikan terhadap warna, aroma, rasa maupun tekstur daging broiler, artinya pemberian pakan fermentasi Neurospora crassa dari ampas sagu dan ampas tahu dengan sampai tingkat 20 persen dalam pakan ayam broiler dapat meningkatkan kualitas daging broiler baik warna, aroma, rasa dan tekstur daging.Kata kunci: ampas sagu, ampas tahu, Neurospora crassa, organoleptikABSTRACTSago pulp and tofu are industrial wastes that can be used as animal feeds. The study aims the organoleptic properties of broiler chicken fed fermented feed from sago pulp and tofu with Neurospora crassa so as improve the quality of meat. This research was conducted on broiler farms belonging to community in Juli Keude Dua Village, Juli, Bireuen District for 4 weeks. The design used was a complete randomized design with 4 treatments with 4 replications. The stages of the research are the preparation fermented sago pulp and tofu, cage, as well broiler maintenance chickens with fermented feed. The preference test for roasted chicken is processed using an organoleptic test involving 25 untrained panelists. Parameters analyzed for color, aroma, taste, and texture. Statistical calculations are performed with one-way variance and continued Duncan test. The results of this study indicate that Neurospora crassa fermented feeding to level 20% has a significant effect on the color, aroma, taste and texture, meaning that the provision of Neurospora crassa fermented feed from sago pulp and tofu up to level 20 percent in broiler chicken feed so as improve the quality of broiler meat both in color, aroma, taste, and texture of meat.Keyword: Neurospora crassa, organoleptic, sago pulp, tofu pulp
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Dyuzheva, N., V. Kornilova, and N. Kostomakhin. "Premixes based on mustard protein-containing feed concentrate “Gorlinka” and their use in feeding of laying hens of the parent herd." Kormlenie sel'skohozjajstvennyh zhivotnyh i kormoproizvodstvo (Feeding of agricultural animals and feed production), no. 2 (February 1, 2020): 3–15. http://dx.doi.org/10.33920/sel-05-2002-01.
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Complex researches on studying of efficiency of use of a premix in which the filler was mustard protein-containing feed concentrate “Gorlinka” as a part of compound feeds for replacement pullets and laying hens have been carried out. Its influence on digestibility and digestibility of nutrients of diets, hatchable qualities of eggs, morphological and biochemical parameters of blood of experimental poultry, economic efficiency of production have been studied. It has been found that the input of the feed to young poultry of the experimental group of the studied premix contributed to a more complete digestion and use of nutrients. According to the results of weighing experimental pullets to 150-day age in the control group the live weight was 1719,23 g, and the average daily gain was 7,83 g, in the experimental group the live weight of the pullets was 1775,25 g, and the average daily gain was 8,74 g, which exceeded the indicator of the control group, respectively, by 3,26 % (P > 0,99) and 11,62 % (P > 0,95). Feed expenditures per 1 kg of live weight gain of poultry in the experimental group were lower than in the control group by 3,73 %, this allowed to obtain additional net income by saving the cost of feed per 1 kg of live weight gain of poultry 1,86 rubles. The economic effect in the experimental group of replacement pullets during the experiment reached 627,75 rubles. When calculating feed expenditures per 1 kg of egg mass, the following results have been obtained: in the control group this figure was 2,18 kg, which was higher than in the experimental group by 0,12 kg. Thus, the input of the experimental premix into feed for laying hens of the parent herd contributed to the increase in egg production and egg weight, as well as a reduction in feed expenditures by 10 eggs. It has been established that the experimental group was superior in all indicators of quality assessment of daily chicks of the control group, which received the premix based on sunflower oil cake as part of the feed. It has been received the chicks in the experimental group 257 heads, and that 14 heads more than in the control group. The chicks of the experimental group surpassed the chicks of the control group in the live weight of one chicken by 0,52 g, and substandard chickens in this group were less by 0,67 %. At an average realizable value of 1000 eggs was 9000 Rub, gross income in experimental group was higher than in control by 0,81 %, which resulted in additional net income from sale of eggs 2916 Rub. Economic eff ect through the use of the premix made up 3782,2 Rub.
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Dukhta, Galyna, Jaap Van Milgen, György Kövér, and Veronika Halas. "A growth model to predict body weight and body composition of broilers." Acta Agraria Debreceniensis, no. 75 (December 28, 2018): 17–24. http://dx.doi.org/10.34101/actaagrar/75/1640.
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Models predicting the nutrient partitioning and animal performance have been developed for decades. Nowadays, growth models are used in practical animal nutrition, and they have particular importance in precision livestock farming. The aim of the present study was to introduce a broiler model and to provide examples on model application. The model predicts protein and fat deposition as well as the body weight of an individual broiler chicken from digestible nutrient intake over time. Feed intake (FI) and the digestible nutrient content of the feed are inputs as well as some animal factors like: initial BW, feed intake at 1 and 2 kg of BW, precocity and mean protein deposition. The protein and energy metabolism is represented as in the classical nutrient partitioning models. The protein deposition (PD) is driven by digestible amino acid supply and is under “genetic control”, the so-called potential PD limits the actual PD if protein is oversupplied.
The authors discuss how the model can be used to simulate the animal response upon different scenarios. Examples are given to show that the diet might be limiting if some animal trait is changed. Applicability of the model has shown through running the model by using different feed strategies (three- vs five-phase-feeding) and variations with animal factors. In conclusion, growth models are useful tools to support decision making for defining the most suitable feeds used in a broiler farm. The model presented in this paper shows a high sensibility and flexibility to test different scenarios. By challenging the model with different inputs, the animal response in terms of changes in body weight and feed conversion can be understood more by studying the shift in deposition of chemical constituents. The examples provided in the present paper shows the benefit of using mathematical models and their applicability in precision nutrition. It can be concluded that the growth model helps to apply “from desired feed to desired food” concept.
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Kyryliv, B. Ya, A. V. Hunchak, and О. М. Stefanyshyn. "Activity of hydrolytic enzyme in the poultry of different species." Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies 20, no. 89 (November 11, 2018): 95–99. http://dx.doi.org/10.32718/nvlvet8918.
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In the processes of digestion and assimilation of nutrients of feed in the body a special place belongs to the digestive system. Hydrolysis of nutrients in the gastrointestinal tract of farm poultry is closely linked to its physiological state, the intensity of metabolic processes in the body and its productivity. However, there are no significant differences in the course and regulation of digestive functions between individual poultry species. At the same time, for different types of poultry, certain distinctive patterns of the course of digestive processes and, in particular, the activity of hydrolytic enzymes, due to the peculiarities of the structure and functioning of the digestive system, are characteristic. In the article is given a fragment of complex systemic researches, which is concerning the proteolytic, amylolytic and lipolytic activity of enzymes in tissues of the organs of the digestive canal (mucous membrane of the glandular and duodenum, pancreas, liver) of the quail breed “Pharaoh”, as well as chicken egg productivity direction cross “Hayseks Brown” and the Beijing Broiler Duck Cross STAR 53 (heavy) selection of the French firm “GRIMAUD FRERES SELECTION” during the critical periods of their growth and development. Namely, in the period of adaptation of the organism after hatching (day-old chicks of all species), complete resorption of residual yolk (7-day quail and 6-day chickens and ducks) and puberty (120-day chickens, 42-day quails, 180-daily ducks) All poultry was kept in poultry farms and received balanced full-fodder feeds, taking into account its species, age and physiological condition. The technology of keeping quails and chickens in cellular batteries, and ducks – on the mesh floor, with free access to the feed and water. It was established, that the nature of changes in the activity of hydrolytic enzymes had organ-tissue and species specificity. This is due not only to the particularities of digestion in quails, chickens and ducks, but also the energy value of rations used in feeding each type of farm poultry, which significantly affects metabolic processes in the body.
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Shkodyak, N., M. Zhyla, O. Pyatnychko, I. Avdosyeva, and V. Dmitrotsa. "INFLUENCE OF BAFASAL FEED ADDITIVE ON MORPHO-BIOCHEMICAL INDICES OF CHICKENS-BROILER’S BLOOD." Scientific and Technical Bulletin оf State Scientific Research Control Institute of Veterinary Medical Products and Fodder Additives аnd Institute of Animal Biology 21, no. 2 (October 27, 2020): 213–18. http://dx.doi.org/10.36359/scivp.2020-21-2.28.
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Recently, interest in the use of bacteriophage therapy in poultry has arisen in the context of the growing problem of antibiotic-resistant microorganisms, as the need to find alternative antibacterial agents is urgent. In addition, EU legislation prohibits the use of antibiotics in feed to stimulate the growth of animals and poultry. Bafasal – a new and innovative agent based on natural components of the ecosystem, has a high specificity to Salmonella serovars, in particular, S. enteritidis, S. typhimurium, S. mbandaka, S. gallinarum, S. іnfantis, which are most often diagnosed in poultry farming. This is the first bacteriophage product on the poultry market, which is recommended as a feed additive for broiler chickens.
The article presents the results of studies on the safety of Bafasal under the application as a feed additive for the prevention of bacterial diseases in poultry breeding. Bafasal was used for chickens of the experimental group according to the following scheme: from 1 to 14 days of the experiment – per 10 chickens – 50 cm3 of feed additive dissolved to 0,5% concentration; and from 15 to 35 days – 100 cm3 of the drug dissolved to 0,25 % concentration. Feeding of poultry of the control and experimental groups was carried out with identical feeds in accordance with regulatory requirements, taking into account the age of the bird. The clinical condition of the bird’s body was monitored daily, on the 35th day of the experiment; ten chickens from each group were taken blood samples for further laboratory tests. The morphological and biochemical parameters of the broiler chicken’s blood under the application of Bafasal feed additive were studied.
It was found that the hematological and biochemical parameters of broiler chickens in the experimental group were within the physiological norm for poultry of this age on fattening, and therefore corresponded to the status of a conditionally healthy organism without signs of pathophysiological abnormalities. There was a reliable increase, within the physiological norm, in the relative number of lymphocytes by 11, 9 % (p <0,05) and a tendency to increasing the number of leukocytes, which showed a sufficient immune potential of the birds and an increase in cellular factors of natural resistance, compared with control chickens. According to the parameters of mineral metabolism, the serum content of Calcium and Phosphorus within the physiological norm was noted, which indicated a sufficient level of mineral supply of the organism of the experimental birds as a whole. In addition, in chicken fed Bafasal throughout the fattening period, the serum enzyme’s ALT, AST and creatine kinase activities and the content of total cholesterol not differ significantly from the control group, indicating the absence of signs of hepatotoxic effects of the studied feed additive.
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Fotina, Tatiana, Zhanna Klishchova, and Anatoliy Fotin. "Experimental justification of the efficacy of Zn and Ag citrates in bird bacterioses." Bulletin of Sumy National Agrarian University. The series: Veterinary Medicine, no. 2 (49) (October 28, 2020): 24–29. http://dx.doi.org/10.32845/bsnau.vet.2020.2.4.
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Introduction. The most important indicator of effective control of a rational system of measures for the prevention of bacterial diseases is the results of microbiological monitoring of the internal environment of poultry houses and their facilities. Most often, the results of microbiological studies confirm the presence of pathogenic and opportunistic microflora belonging to the family Enterobacteriaceae, which includes more than 20 genera (Escherichia, Shigella, Salmonella, Klebsiella, Proteus, Citrobacter, Yersinia, etc.), which can cause disease not only in birds, but also in humans.
Most often, the bacterial infection is mixed. The leading place in the etiological structure is occupied by microorganisms of the intestinal group, which are represented by Escherichia coli and Salmonella in associations with other species of opportunistic bacteria. The consequence of this is the development of bacterial infections, which dramatically reduce the resistance of birds compared to monoinfections and adversely affect the immunobiological reactivity of the organism and remain the main cause of death of birds.
Bacterial diseases of poultry occupy a significant place among the current problems of modern poultry in all countries, the most epizootic are Escherichia coli, mycoplasmosis and salmonellosis of birds [1-4]. During monitoring studies in poultry farms, cultures of Escherichia coli, staphylococci, Proteus, Pseudomonas aeruginosa, ornithobacteria, etc. are isolated, which significantly complicates the timely and objective diagnosis and development of control and prevention measures.
The goal of the work. To substantiate the effectiveness of Zn and Ag citrates in avian bacteriosis.
Materials and methods: The research was conducted in the vivarium of the Faculty of Veterinary Medicine of Sumy NAU in compliance with ethical norms and rules of animal treatment adopted at the First National Congress of Bioethics (Kyiv, 2001) and the European Convention for the Protection of Vertebrate Animals scientific purposes "(Strasbourg, 1986), 80 heads of Leghorn chickens were used for the experiment. Of the drugs used new drugs citrates - are sorbents of a new generation, which are produced by LLC "DOCTOR OSKO" Sumy. The composition of these drugs contains natural activated zeolite, silver citrate and zinc citrate. The basis is zeolite (clinoptilolite) - a natural mineral used in medicine as a selective enterosorbent. Properties of the drug: zeolite corrects mineral deficiency and performs the transport function of microelements in the body and adsorbs toxic substances from the body while maintaining the natural balance. This modification technology consists in supplementing the mineral composition of the zeolite with ions of any macro- and microelements (in the form of citrates), "placing" them in the structure of its framework.
The experimental bird at the age of 24 hours was divided into 8 groups - 4 control and 4 experimental. Chickens of the first control and two experimental groups (5.6 groups) at 10 days of age were infected with E. coli 078 at a dose of LD50 2 * 109μ / cm3. Chickens of the third and two other experimental (7.8 groups) were infected with S. pullorum in the same dose. In the fifth and seventh groups, Zn citrate was given at the dose of 15 g / 250 cm3 from the first day, and in the fourth, sixth and eighth groups, Ag citrate was given at the same dose. The drugs were administered daily for 14 days, and also monitored the clinical condition of chickens up to 30 days of age. Toxicological examination of meat samples taken from slaughtered chickens was performed using a standard commercial batch of culture of colfod infusoria, made in accordance with the requirements of the regulatory documentation TU U 46.15.243-97.
Results of research and discussion. Zn and Ag citrates at a dose of 15 g / 250 cm3 prevent bacteriosis, namely Escherichia coli and salmonellosis. Preservation of chickens in the experimental groups was 90-100%
The toxicity of poultry meat was determined using free-living ciliates, which are most commonly used in biotesting of drugs, feeds, and feed additives. Their use is explained by the ease of penetration of the investigated dispersed solutions of a certain concentration due to the lack of selective nutritional capacity. When a single-celled organism receives a toxic substance, it becomes highly excited or less mobile, loses orientation in space, changes the shape and size of the body, resulting in impaired division functions, then it slows down and dies. Examining chicken meat for the toxicity of citrates Ag and Zn drew attention to the previously listed characteristics, which are used as the main test reactions.
Studies have shown that meat from healthy poultry does not adversely affect the culture of Colpoda steinii, which indicates the absence of toxic substances in meat
The meat of poultry treated with Zn and Ag citrates did not adversely affect the colpod, they remained mobile for three hours in all samples. The intensity of their growth was 90%, which indicates the absence of toxic effects of citrates. The meat of poultry infected with Escherichia coli and salmonellosis was toxic - 90% of colpods died within three hours. The meat of chickens that were infected with S. pullorum on the background of the use of Ag citrate was slightly toxic, but when using Zn was non-toxic.
Conclusion. Thus, experiments have established the effectiveness of the use of Zn and Ag citrates in Escherichia coli and salmonellosis of birds, when they are used, the safety of birds is 90-100%. Poultry meat that received citrates is safe - for three hours all colpods remained mobile, and their growth rate was 90%
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"PERSILANGAN ANTARA AYAM KAMPUNG DAN AYAM RAS LEGHORN STRAIN ISA BROWN." FRONTIERS: JURNAL SAINS DAN TEKNOLOGI 1 (August 1, 2018). http://dx.doi.org/10.36412/frontiers/001035e1/agustus201801.05.
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This research is the first step, with aims to determine the production and reproduction ability of Crossbreding between male native chicken with female Isa brown strain leghorn, to be the parent in the next stage of research . This study used 3 male native chicken 12 -24 months of age. and and 28 females of Leghorn chicken 14 month of ege, with body weight 1100-1200 gram, crossbreding using artificial Insemination methode, semen domestic chicken dilution rate using physiological NaCl, ratio sperm dilution 1 : 4. They were put in grower flocks with density of one birds per cage. Feeds during experiment were given in phases, starter Feeds (Protein 21% and Energy 3000 kcal/kg), for layer (Protein 17% and Energy 2900 kcal/kg). Drinking water during experiment were given adlibitum. The result of the study illustrate crossbreeding between male native chicken and female leghorn chiken Isa Brown strain is egg weight: 51.50-54.17 gram, egg index: 0.76-0.79%., egg fertility 65,70-78,00%, hatchability 76.83-78.75%. In conclusion: egg weight of 52.42 eggs, egg index 0.78, eggs fertility 74.43%. hatchability 77,93%, Keywords : native chiken, leghorn, crossbreeding
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Saibaba, Ganesan, Mark Ruzal, Dima Shinder, Sara Yosefi, Shelly Druyan, Hagit Arazi, Oren Froy, Dror Sagi, and Miriam Friedman-Einat. "Time-Restricted Feeding in Commercial Layer Chickens Improves Egg Quality in Old Age and Points to Lack of Adipostat Activity in Chickens." Frontiers in Physiology 12 (June 21, 2021). http://dx.doi.org/10.3389/fphys.2021.651738.
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In mammals, time-restricted feeding (TRF) with no caloric restriction provides health benefits and extends longevity, usually with a minor (∼3%) or no reduction in total food consumption. In the current study, a TRF regimen of 6 h free access to food (08:00–14:00 h) was applied to Leghorn chickens from 25 to 86 weeks of age; control birds ate freely during the light hours (06:00–20:00 h). Unexpectedly, the TRF-treated birds consumed, on average, 11.7% less food than the controls. This was manifested by an average reduction of 9.6% in body weight, 2.6-fold in visceral fat accumulation, and 6.5% in egg weight. Hen-housed egg production was reduced by 3.6% in the TRF group compared with the control, along the first 40 weeks of the follow-up (P < 0.05), and changed into a tendency of 0.7% higher egg production thereafter. Several parameters of egg quality showed significant improvement (P < 0.05) in the TRF group compared with the controls. A comparison of diurnal patterns of feed consumption revealed a higher rate of hourly consumption in the TRF group and increased consumption before dark in the control group. In conclusion, the reduced feed intake in response to the TRF treatment and loss in visceral fat accumulation supports the lack of a strong adipostat activity in chickens and different appetite regulation mechanisms compared with mammals. Therefore, future TRF studies in chickens should be adjusted by extending the ad libitum time window. The lower feed intake by the TRF-treated chickens compared with the ad libitum-fed controls seems to reduce the efficiency of egg production. Nevertheless, the improved egg quality and persistence of egg lay at the older age suggest that similarly to mammals, the TRF treatment delayed at least some of the negative impacts associated with advanced age.
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Kesavelu, Dhanasekhar, and V. S. Lekha. "Clinical Profiling of a Chicken Based Formula in an Indian Children’s Hospital." Asian Journal of Pediatric Research, July 23, 2021, 5–11. http://dx.doi.org/10.9734/ajpr/2021/v6i230190.
Full textAbstract:
Aims: To compare nutritional status of chronic ill children before and after using chicken-based formula (CBF).
Design: A retrospective, case note based, observational study of the use of CBF in various clinical indications were noted and results critically analysed.
Study Design: In this study, out patients aged 1 to 36 months who were prescribed CBF from 2018-2020 were included. The indications for using the formula and the outcomes were noted. All subjects, consumed the prescribed formula for a minimum of six months. The pre and post - therapy nutritional status were assessed. The collected data was analysed using SPSS Version 20.
Methodology: Children between the ages 1 to 36 months who presented with chronic diarrhoea in whom CBF was prescribed either as primary source of nutrition or an nutritional adjunct were included in the study. Children who were allergic to the CBF or any of its ingredients were excluded from the study.
Results: 34 children were prescribed CBF for various indications including Cow’s milk protein allergy (n=18, 52%), underweight (n=8, 23.5%), Chronic Diarrhoea (n=8, 23.5%). The age range was 0-6 months n=13 (38.2%), 6-12 months n=14 (41.2%) and 12-36 months=7 (20.6%).The nutritional assessment prior to commencing feeds showed 52.9% (n=18) were underweight, 44.1% (n=15) were well nourished and 2.9% (n=1) was overweight. Post feeding nutritional status showed-20.58% (n= 7) remained underweight, 76.4% (n=26) were well nourished and 2.9 % (n= 1) overweight. Weight gain was significant in selected subjects (<.001).Pearson correlation indicates that there was significant positive correlation between CBF and weight gain.
Conclusions: Growth parameters of infants fed with CBF matches with infants who are not fed on CBF. CBF can be used as an alternative in the absence of equivalent therapeutic feeds. It may be used for indications such as secondary lactose intolerance, celiac disease, malnutrition and alternative to hypo-allergenic formula (as a cheaper and cost effective formula) and as an adjuvant in malnutrition.
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Bollido, Marcos E. "Growth Performance and Profitability of Broilers Supplemented with Vermi Meal under Free Range Management System." Agricultural Science Digest - A Research Journal, Of (October 1, 2020). http://dx.doi.org/10.18805/ag.d-278.
Full textAbstract:
Background: Poultry rearing systems and feeding have been the emphasis of broiler raisers to in able to meet the costumers demand for high-quality products. In this study, free range management have been introduced that allows the birds to enjoy their natural habitat while utilizing vermi meal as supplemented to commercial feeds. Method: Evaluated the growth performance and profitability of broilers fed with different levels of vermi meal. Treatments represent T1- 100% Commercial Feeds (CF), T2- 2% Vermi Meal (VM)+98% CF, T3- 3% VM+97% CF, T4- 5% VM+95% CF. Treatment means having significant differences were subjected to Least Significant Difference at 5 % level of significance. Result: Vermi meal did not influenced the weight gain, feed intake, feed consumption and dressing percentage of broiler chicken. However numerically, final weight and weight gain in T4 containing 5% VM was higher than T1 with commercial feed a difference of 66. 66 grams and 67.60 grams respectively. Birds of T4 with 5% inclusion of vermi meal showed higher in most parameters compared to the group fed with commercial feed. Consequently, 5% level of vermi meal had an optimum result in final weight, gain weight, feed conversion ratio, feed consumption, live weight and carcass weight.
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Adugna, Ashenafi Assefa, Keredin Mohammed Habib, Ojuni Odier, and Tsigabu Gebresilase. "Effects of Fish By-product Meal Inclusion in Broiler Feeds on Growth Performance." Journal of Experimental Agriculture International, August 17, 2020, 76–81. http://dx.doi.org/10.9734/jeai/2020/v42i730556.
Full textAbstract:
Background: The presence of inadequate and inconsistent feeds to the chicken resulted in lower performance of chick production in Ethiopia. Broilers are meat type chickens with fast income generation and depend on high quality feed. Feed costs alone currently account for over 65-70% of poultry production in third world countries, there has been recent interest in determining the feeding value of different locally available alternative feeding resources. As fish is generally appreciated as one of the healthiest and cheapest source of protein and it is available in Gambella water bodies, this research is intended to investigate the effects of fish by-product inclusion in broiler feeds on growth performance. Two hundred and forty (240) day old broiler chicks (Cobb 500) were reared and assigned to four treatments for 42 days. Treatment one was the control without fish by-product meal, treatment 2 contained 2% fish by-product meal, treatment 3 contained 3% fish by-product meal and treatment 4 contained 5% fish by-product meal. Each treatment was replicated 3 times with 20 birds per replicate in a completely randomized design. Parameters measured for the experiment were the initial body weight, final weight, daily feed intake while weight gain and feed conversion ratio (FCR) were calculated. Data were analyzed using General linear model procedure of statistical analysis software (SAS) version 9.2.
Results: This study indicated that the average daily feed intake of broiler significantly increased (P<0.05) in 3 and 5% fish by-product meal level to the diets during 11-20 days of age. At the age of 32 – 42 days the average body weight and daily feed intake at the age of 21-32 days were significantly (P<0.05) increased in 3 and 5% fish by-product meal level compared to control and 2% fishmeal diet.
Conclusion: This study revealed that inclusion of fish by-product meal in the diet improved the performance of broiler. To utilize and exploit the potential of fish by-product meal as broiler feed in Gambella region, farmers should get training on preparation and utilization of fish by product.
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Agboola, Jeleel Opeyemi, Marion Schiavone, Margareth Øverland, Byron Morales-Lange, Leidy Lagos, Magnus Øverlie Arntzen, David Lapeña, et al. "Impact of down-stream processing on functional properties of yeasts and the implications on gut health of Atlantic salmon (Salmo salar)." Scientific Reports 11, no. 1 (February 24, 2021). http://dx.doi.org/10.1038/s41598-021-83764-2.
Full textAbstract:
AbstractYeasts are becoming popular as novel ingredients in fish feeds because of their potential to support better growth and concomitantly ensure good fish health. Here, three species of yeasts (Cyberlindnera jadinii, Blastobotrys adeninivorans and Wickerhamomyces anomalus), grown on wood sugars and hydrolysates of chicken were subjected to two down-stream processes, either direct heat-inactivation or autolysis, and the feed potential of the resulting yeast preparations was assessed through a feeding trial with Atlantic salmon fry. Histological examination of distal intestine based on widening of lamina propria, showed that autolyzed W. anomalus was effective in alleviating mild intestinal enteritis, while only limited effects were observed for other yeasts. Our results showed that the functionality of yeast in counteracting intestinal enteritis in Atlantic salmon was dependent on both the type of yeast and the down-stream processing method, and demonstrated that C. jadinii and W. anomalus have promising effects on gut health of Atlantic salmon.
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Ng’ang’a, J., S. Imathiu, F. Fombong, J. Vanden Broeck, and J. Kinyuru. "Effect of dietary supplementation with powder derived from Moringa oleifera and Azadirachta indica leaves on growth and microbial load of edible crickets." Journal of Insects as Food and Feed, March 26, 2021, 1–14. http://dx.doi.org/10.3920/jiff2020.0056.
Full textAbstract:
Cricket farming has shown its potential to address food and nutrition insecurity in parts of the world. However, one of the remaining challenges limiting mass production of edible insects is the affordability of feeds. One possible way to address this issue would be to explore the use of traditional plants such as Moringa oleifera leaf (MOL) and Azadirachta indica leaf (AIL) that are locally available, are protein-rich and possesses some antibacterial properties in insect feed formulation. In this regard, a study was conducted to evaluate the effect of supplementation of MOL (5 or 10%) and AIL (5 or 10%) powder in the commercially used starter chicken feed on growth and microbial load of house cricket (Acheta domesticus) and field cricket (Gryllus bimaculatus). After feeding for four weeks, the supplemented feeds with 10% MOL or 10% AIL in A. domesticus and G. bimaculatus significantly decreased (P<0.05) the body weights. Also, supplementation with MOL (5 or 10%) and AIL (5 or 10%) increased the mortality in both cricket species. Although high counts of total aerobic, Enterobacteriaceae, lactic acid bacteria, bacterial endospores, yeasts and moulds were observed, significantly lower counts (P<0.05) of lactic acid bacteria and bacterial endospores were observed in treatments containing MOL (5 or 10%) and 10% AIL in both cricket species. After processing (toasting and boiling), significant reductions (P<0.001) of all vegetative microbial cells were observed but bacterial endospores were not completely eliminated. Thus, during production and processing of insects and insect-derived products, bacterial endospores would require special attention. Salmonella and Escherichia coli were not detected in processed crickets’ samples. In conclusion, supplementation with 5% MOL or 5% AIL can produce crickets with similar body weight as control feed. Mortality increased significantly when feeds were supplemented with either MOL or AIL powder. Supplementation with MOL and AIL powders significantly reduced the cell numbers for some bacterial groups in both cricket species.
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Ajang, Raymond Odey, Ettah Akpang Ivon, Christopher Bassey Ndome, Elvis Monfung Ayim, and Akaninyene Paul Joseph. "Economic Performance of Clarias gariepinus Juveniles Fed Separately with Factory and Farm-Made Diets." Asian Journal of Environment & Ecology, March 14, 2019, 1–11. http://dx.doi.org/10.9734/ajee/2018/v8i430081.
Full textAbstract:
Economic performance of using Coppens (commercial fish feed) and locally formulated feeds for Clarias gariepinus culture was studied. Forty juveniles averaging a total length of 9.15 ± 0.17cm and weight of 20.00 ± 2.58g were used and fed twice daily at 3% of their body weight. The weight gain (WG), growth rate (GR) and specific growth rate (SGR) varied significantly (p<0.05), while mean growth rate (MGR) varied insignificantly between treatment groups (p>0.05). Water parameters were at the required level. Cost of experimental feed per kilogram was highest in Coppens (₦733.33 ($2.156853)/kg) but lowest for chicken offal based diet (COBD) (₦267.00 ($0.785294)/kg). Feed consumption was higher for Coppens group (41650.00g ± 315.34) but lowest for COBD group (38276.00g ± 432.97). Cost of feeding (FC) was lower for COBD group (₦ 10219.69 ($30.057912) ±115.60) but higher in shrimp based diet (SBD) group (₦ 30,543.19 ($89.832912) ± 231.25). The ICA was higher in fish fed Coppens (₦ 1933.33 ($5.686265) ± 0.00) but lower for COBD group (₦1467.00 ($4.314706) ± 0.00). The NPV was higher in fish fed Coppens (₦ 440998.26 ($1297.053706) ±11636.93), but lower in COBD group (₦ 132916.16 ($390.929882) ± 3297.24). The PI was highest in Coppens group (₦14.44 ($0.042471) ± 0.35) but lowest in COBD group (₦ 13.01 ($0.038265) ± 0.43). The GP was higher in Coppens group (₦439064.93 ($1291.367441) ± 11636.93) but lower in COBD group (₦131449.16 ($386.615176) ± 3297.24). The IC was higher in Coppens group (₦228.10 ($0.670882) ± 6.02) but lower in COBD group (₦90.61 ($0.266500) ± 2.25). The BCR was higher in fish fed coppens (1.78±0.04) but lowest in COBD group (0.71±0.01). Feed consumed, FC, ICA, NPV, PI, GP and IC varied significantly (p<0.05), while BCR varied insignificantly (p>0.05) between treatment group. The SBD and COBD were as effective as Coppens in terms of growth performance and economic benefits. More researches should be carried out on the use of locally formulated feeds in aquaculture.