Zaloguj się

Gotowe bibliografie tematyczne / White Hisex layer hens / Artykuły w czasopismach

Kliknij ten link, aby zobaczyć inne rodzaje publikacji na ten temat: White Hisex layer hens.

Artykuły w czasopismach na temat „White Hisex layer hens”

Autor: Grafiati

Data publikacji: 2 czerwca 2025

Data aktualizacji: 31 lipca 2025

Utwórz poprawne odniesienie w stylach APA, MLA, Chicago, Harvard i wielu innych

Wybierz rodzaj źródła:

Sprawdź 50 najlepszych artykułów w czasopismach naukowych na temat „White Hisex layer hens”.

Przycisk „Dodaj do bibliografii” jest dostępny obok każdej pracy w bibliografii. Użyj go – a my automatycznie utworzymy odniesienie bibliograficzne do wybranej pracy w stylu cytowania, którego potrzebujesz: APA, MLA, Harvard, Chicago, Vancouver itp.

Możesz również pobrać pełny tekst publikacji naukowej w formacie „.pdf” i przeczytać adnotację do pracy online, jeśli odpowiednie parametry są dostępne w metadanych.

Przeglądaj artykuły w czasopismach z różnych dziedzin i twórz odpowiednie bibliografie.

1

Mohmed, Ismaiel Hamdan Malek, Ahmed Mulhtar Mukhtar, and Abd Elbagi Mohammed Kamal. "Effect of using the Local Concentrate as an alternative to the imported concentrate on the performance and egg quality of layers." GPH-International Journal of Agriculture and Research 8, no. 05 (2025): 09–19. https://doi.org/10.5281/zenodo.15436601.

Pełny tekst źródła

Streszczenie:

A total of 27 White Hisex layer hens (24 weeks old) were used in this study. They were purchased from a company specializing in the production of laying hens. The birds were randomly divided into three treatment groups (A, B, and C), with each group further subdivided into three replicates of three birds each. Group A was fed a diet containing 5% local concentrate, Group B received 7.5% local concentrate, while Group C (control) was fed a diet with 5% imported concentrate. The inclusion of local concentrate at both levels significantly improved egg production and quality parameters compared to

Style APA, Harvard, Vancouver, ISO itp.

2

IGNATOVICH, Larisa S., Elena V. GINTER, Aleksandr S. LYKOV, Irina Yu KUZMINA, and Svetlana B. KUSTOVA. "THE USE OF NON-CONVENTIONAL SUPPLEMENTARY FEEDS IN CATTLE AND LAYER DIET." Periódico Tchê Química 16, no. 32 (2019): 668–87. http://dx.doi.org/10.52571/ptq.v16.n32.2019.686_periodico32_pgs_668_687.pdf.

Pełny tekst źródła

Streszczenie:

It was undertook a number of studies on the effects of introducing new non-conventional vegetable supplementary feeds in the diets of dairy cows and industrial laying hens. Plants are not cultivated for their production, but they refer to wild crops growing in the natural habitat in sufficient quantities. The purpose of the research was to determine the effect of introducing non-conventional vegetable supplementary feeds on the productive qualities of cows and laying hens; quality of products (milk, eggs); nutrient digestibility (use) of laying hens and reproductive functions of cows; and to i

Style APA, Harvard, Vancouver, ISO itp.

3

Yeasmin, S., MS Islam, SD Nath, and SS Islam. "Physical and nutritional qualities of eggs and meats fed shrimp head meal to layer chicken." Bangladesh Journal of Animal Science 50, no. 1 (2021): 12–21. http://dx.doi.org/10.3329/bjas.v50i1.55560.

Pełny tekst źródła

Streszczenie:

The experiment was conducted to investigate the effects of substitution of soybean meal of laying hens ration by shrimp head meal (SHM) on physical and nutritional quality of eggs and meats. Three hundred Hisex White laying hens were divided into five treatment groups and allocated five experimental diets included different levels of SHM. Soybean meal contents of control ration was substituted by SHM meal at the rate of 25, 50, 75 and 100%, respectively. Samples of SHM, eggs and meats were subjected to proximate analysis. Physical properties of eggs and meats were also analyzed following the s

Style APA, Harvard, Vancouver, ISO itp.

4

Almeida, Guilherme Resende de, Michele de Oliveira Mendonça, Lidianne Carolina de Castro Weitzel, et al. "Physical quality of eggs of four strains of poultry." Acta Scientiarum. Animal Sciences 43 (October 6, 2021): e52738. http://dx.doi.org/10.4025/actascianimsci.v43i1.52738.

Pełny tekst źródła

Streszczenie:

The layer poultry is an important activity for food production with high biological value. Measuring egg quality has great relevance to ensure safety and quality products for consumers. Thus, the objective was to evaluate the egg physical quality of four laying hen’s strains. Were used 864 eggs from four laying hens’ lines (Hisex Brown®, Hy-Line Brown®, Isa Label®, and Lohmann Brown®). The experimental design was completely randomized composed of four treatments (strains) with nine replications with four eggs each. Egg weight, egg diameter, egg length, specific gravity, yolk, albumen and shell

Style APA, Harvard, Vancouver, ISO itp.

5

El-Hack, Mohamed E. Abd, Khalid M. Mahrose, Faten A. M. Attia, et al. "Laying Performance, Physical, and Internal Egg Quality Criteria of Hens Fed Distillers Dried Grains with Solubles and Exogenous Enzyme Mixture." Animals 9, no. 4 (2019): 150. http://dx.doi.org/10.3390/ani9040150.

Pełny tekst źródła

Streszczenie:

: The effects of dietary inclusion of distillers dried grains with solubles in laying hen diets with and without exogenous enzyme mixture (EEM) on performance and egg characteristics were evaluated. One of the main objectives of this study was to examine the effects of distillers dried grains with solubles (DDGS) and enzyme cocktail on egg yolk fatty acids. The study used total of 144 Hisex Brown laying hens in a 4 × 2 factorial arrangement, including four levels of DDGS (0, 6, 12, and 18% of diet) and two levels of enzyme cocktail (0 or 250 mg EEM/kg of diet) through 32–42 weeks of the age. T

Style APA, Harvard, Vancouver, ISO itp.

6

Shelyov, A. V., K. V. Kopylov, N. P. Prokopenko, S. S. Kramarenko, and A. S. Kramarenko. "Genotypical structure of egg hens by DNA microsatellites." Sučasne ptahìvnictvo, no. 11-12 (December 23, 2020): 16–21. http://dx.doi.org/10.31548/poultry2020.11-12.016.

Pełny tekst źródła

Streszczenie:

The character of genotypic polymorphism of five industrial egg crosses of hens for five microsatellite DNA loci was analyzed. For the studied loci, 157 different genotypic variants were identified. Industrial crosses of domestic chicken Gallus domesticus significantly differed in the distribution of genotypes for all studied microsatellite loci (P <0.001). The largest number of genotypes was found in brown crosses. For loci ADL268 and LEI094, individuals of the Hisex Brown cross were the most polymorphic, while for others, Lohmann Brown. The most common among the studied birds is the genoty

Style APA, Harvard, Vancouver, ISO itp.

7

Tsoi, Z. V., and D. S. Adushinov. "Feed additive from marine fishing waste in compound feed for laying hens under the conditions of the Primorsky Territory." Kormlenie sel'skohozjajstvennyh zhivotnyh i kormoproizvodstvo (Feeding of agricultural animals and feed production), no. 12 (November 21, 2022): 20–32. http://dx.doi.org/10.33920/sel-05-2212-03.

Pełny tekst źródła

Streszczenie:

The Far East and in particular the Primorsky Territory is very rich in seafood, waste from the processing of which can be used in feeding animals and poultry. Currently, various technologies are used in Primorsky Territory to process fi sh production waste. Thus, it makes production waste-free. The purpose of the research was the scientific and practical justifi cation of increasing the productivity of the replacement young chickens and laying hens of the cross Hisex White by including a feed additive from waste from the processing of fi shing in the Primorsky Territory. The research was carri

Style APA, Harvard, Vancouver, ISO itp.

8

Miranda, D. A., L. F. S. Moreira, A. A. De Almeida, et al. "Organic minerals, tributyrin, and blend of organic acids in the diet of commercial laying hens at the end of production." South African Journal of Animal Science 53, no. 1 (2023): 7–16. http://dx.doi.org/10.4314/sajas.v53i1.02.

Pełny tekst źródła

Streszczenie:

This study aimed to evaluate the responses in performance, egg quality, and health of internal organs of laying hens of Hisex White lineage. The birds were provided with diets supplemented with organic minerals (OM) + tributyrin, associated or not with a mixture of organic acids (benzoic formic, citric, and phosphoric), compared to a control treatment containing zinc bacitracin (28 ppm). In total, 160 laying hens of the commercial Hisex White lineage of 68 w and an average weight of 1.735 ± 0.025 kg were distributed in 40 experimental plots. The study employed a completely randomized design, w

Style APA, Harvard, Vancouver, ISO itp.

9

Brelaz, K. C. B. T. R., F. G. G. Cruz, J. P. F. Rufino, R. J. M. Brasil, A. F. Silva, and A. N. A. Santos. "Serum biochemistry profile of laying hens fed diets with fish waste oil." Arquivo Brasileiro de Medicina Veterinária e Zootecnia 73, no. 1 (2021): 223–30. http://dx.doi.org/10.1590/1678-4162-11704.

Pełny tekst źródła

Streszczenie:

ABSTRACT The present study aimed to evaluate increasing levels of fish waste oil in diets for laying hens on serum biochemistry profile. 192 Hisex White laying hens at 29 weeks of age were used, with water and food ad libitum. The experimental design was completely randomized consisting of eight treatments corresponding to the inclusion levels of fish waste oil (0, 0.5, 1.0, 1.5, 2.0, 2.5, 3.0 and 3.5%) in the diets, with four replicates of six birds each. Data collected were subjected to polynomial regression at 5% of significance. Significant differences (P<0.05) were observed in triglyce

Style APA, Harvard, Vancouver, ISO itp.

10

Batalha, Oscarina De Souza, Sonia Sena Alfaia, Frank George Guimarães Cruz, Rogério Souza de Jesus, João Paulo Ferreira Rufino, and Valcely Rocha Costa. "Digestibility and physico-chemical characteristics of acid silage meal made of pirarucu waste in diets for commercial laying hens." Acta Scientiarum. Animal Sciences 39, no. 3 (2017): 251. http://dx.doi.org/10.4025/actascianimsci.v39i3.35112.

Pełny tekst źródła

Streszczenie:

The objective of this study was to evaluate the effects of acid silage meal made of pirarucu waste in diets for commercial laying hens on apparent digestibility and energy metabolism. Seventy-two Hisex White hens with 71 weeks of age were assigned to a completely randomized with two treatments (control diet and diet with 3% pirarucu waste acid silage) with six replicates of six birds each. The ensiled biomass was light brown in color, showing acidified aroma; creamy consistency; 4.38±0.11 pH; 84.16% dry matter; 40.06% crude protein; 26.82% ether extract; 9.31% mineral matter, 65.16 g kg-1 calc

Style APA, Harvard, Vancouver, ISO itp.

11

Islam, SS, C. Paul, and BC Sarker. "A comparative study on the performances of layer hybrids in some selected areas of Khulna region." Bangladesh Journal of Animal Science 42, no. 2 (2013): 114–22. http://dx.doi.org/10.3329/bjas.v42i2.18491.

Pełny tekst źródła

Streszczenie:

A survey was conducted in Batiaghata and Dacope upazilla of Khula district during the period from August to October, 2013 to observe the socioeconomic conditions of poultry farmers, existing feeding and management practices of poultry farms and performances of 5 different layer hybrids. The commercial layer hybrids considered in present study were of 30 layer farmers selected randomly from each Upazilla to collect the information. Data were collected using a pretested questionnaire by direct interview of the farmers. Collected data were analyzed using SPSS. To observe the socioeconomic conditi

Style APA, Harvard, Vancouver, ISO itp.

12

Aleynikov, Alexander, and Ivan Osipenko. "Information technology for culling poultry eggs before incubation based on gender." E3S Web of Conferences 390 (2023): 03005. http://dx.doi.org/10.1051/e3sconf/202339003005.

Pełny tekst źródła

Streszczenie:

The necessity of rejection of poultry eggs by sex before their incubation is shown. The main methods for assessing the sexual dimorphism of bird eggs are considered, for the suitability of their use for evaluating bird eggs by sex before incubation. A hypothesis is presented about the presence of asymmetry of chicken eggs in spatial coordinates in bird eggs with male and female embryos A set of programs has been developed to confirm this hypothesis in studies to assess the sexual dimorphism of bird eggs before incubation. The results of testing the complex on a batch of eggs of hens of the bre

Style APA, Harvard, Vancouver, ISO itp.

13

Brelaz, Kely Cristina Bastos Teixeira Ramos, Frank George Guimarães Cruz, João Paulo Ferreira Rufino, et al. "Apparent digestibility of fish waste oil in diets for laying hens." Acta Scientiarum. Animal Sciences 46 (December 13, 2023): e66788. http://dx.doi.org/10.4025/actascianimsci.v46i1.66788.

Pełny tekst źródła

Streszczenie:

This study aimed to assess the impact of incorporating fish waste oil into laying hens' diets on apparent nutrient digestibility and apparent metabolizable energy. A total of 72 Hisex White laying hens (25 weeks old) were employed in a completely randomized design, with treatments consisting of a control diet and an experimental diet (containing 3.5% fish oil), each with six replicates of six birds. The collected data underwent polynomial regression analysis at a 5% significance level. No significant differences (p > 0.05) were observed in the digestibility of dry matter, crude protein, min

Style APA, Harvard, Vancouver, ISO itp.

14

Taskin, Atilla, Ufuk Karadavut, and Omer Camci. "The Effect of Nest Box Curtain Color on the Nest Box Choice of Brown and White Layer Hens Breed in a Free-Range System." Greener Journal of Agricultural Sciences 4, no. 6 (2014): 258–64. https://doi.org/10.15580/GJAS.2014.6.063014284.

Pełny tekst źródła

Streszczenie:

In this study, the effect of nest box curtain color on the complex behavior of nest box choice of brown and white layer hens bred in a free-range system, an alternative breeding system to battery cages, was analyzed. Yellow, blue, red, and green curtains were placed randomly in the entrance of the nest boxes, and the color of the nest box curtain was observed to affect the egg-laying choices of the hens (P<0.01), while the curtain color x genotype interaction was determined to bear no significance. According to the results, the nest box choices of white layer hens were 36.53%, 17.54%, 15.42

Style APA, Harvard, Vancouver, ISO itp.

15

Rufino, João Paulo Ferreira, Frank George Guimarães Cruz, Ronner Joaquim Mendonça Brasil, Pedro Alves de Oliveira Filho, Ramon Duque Melo, and Julmar da Costa Feijó. "Relationship between the level and the action period of fiber in diets to laying hens." Acta Scientiarum. Animal Sciences 43 (August 19, 2020): e49033. http://dx.doi.org/10.4025/actascianimsci.v43i1.49033.

Pełny tekst źródła

Streszczenie:

The aim of the present study was to evaluate the relationship between the level of fiber and its action period in diets to laying hens on performance and egg quality. 180 Hisex white hens (65 weeks-old) were randomly allocated to 3 groups of 60 birds each, comprising 10 replicates of six birds per treatment. The experimental design was factorial scheme considering three levels of fiber (2.50, 4.87 and 7.24%) in birds’ diets, and three action periods of this fiber (short - 21 days, medium - 56 days, and long - 105 days) in the feed. The estimates of treatments were firstly subjected to ANOVA an

Style APA, Harvard, Vancouver, ISO itp.

16

Vertiprakhov, V. G., and K. V. Borisenko. "Digestion and blood biochemical values of hens fed on the diets supplemented with exogenous protease." Siberian Herald of Agricultural Science 49, no. 2 (2019): 77–84. http://dx.doi.org/10.26898/0370-8799-2019-2-10.

Pełny tekst źródła

Streszczenie:

The paper presents the results of feeding crossbred laying hens of Hisex White breed, one year of age, suffering from chronic fistulae of the main pancreatic duct, on the wheat-soya diet supplemented with exogenous protease. The scope of the study covered the effect of enzymatic preparation Axtra Pro® on exocrine pancreatic function of hens, diet nutrients digestibility, digestive enzyme activity and blood biochemical values. Enzymatic activity of1 gof preparation Axtra Pro® amounted to 897 ± 47.5 mg of casein split during 1 minute (mg/(ml per min), which is 77.6% higher compared to preparatio

Style APA, Harvard, Vancouver, ISO itp.

17

Vertiprakhov, V. G., A. A. Grozina, and K. V. Borisenko. "Effects of biologically active substances in the pre- and postprandial period on the biochemical parameters of the blood in laying hens." Rossiiskaia selskokhoziaistvennaia nauka, no. 4 (August 19, 2019): 48–51. http://dx.doi.org/10.31857/s2500-26272019448-51.

Pełny tekst źródła

Streszczenie:

The paper presents the results of biochemical blood tests in chicken Hisex White, 46 weeks of age when biologically active substances are added to the diet: an enzyme preparation (Axtra PRO, 100 g/t), an acidulant containing fumaric acid (Menacid 330, 100 g/t), flavor enhancer (Garlic allicin, 100 g/t). It was established that biochemical blood parameters in the experimental period do not have significant deviations from the control, with the exception of alkaline phosphatase activity, which decreases when the protease is added to the feed by 47.8%. An increase in lipase activity is observed b

Style APA, Harvard, Vancouver, ISO itp.

18

Ajakaiye, Joachim Joseph, Alcides Perez-Bello, and Angel Mollineda-Trujillo. "Impact of Vitamins C and E Dietary Supplementation on Leukocyte Profile of Layer Hens Exposed to High Ambient Temperature and Humidity." Acta Veterinaria Brno 79, no. 3 (2010): 377–83. http://dx.doi.org/10.2754/avb201079030377.

Pełny tekst źródła

Streszczenie:

A 30-day experiment involving 720 White Leghorn layer hens was carried out to evaluate the effects of vitamins C and E on leukocyte and heterophil/lymphocytes ratios of the layer hens during the natural summer conditions. The birds were divided into 4 groups, one control with basal diet and three experimental with diet supplemented with vitamin C, vitamin E, or combination of both vitamins. Each group was divided into 4 subgroups. Exposure of layer hens to 31 ± 3 °C and 33 ± 0 °C ambient temperature and 84.6% and 81.5% relative humidity during the experiment caused an increase in the value of

Style APA, Harvard, Vancouver, ISO itp.

19

Trindade, Marco Antonio, Pedro Eduardo de Felício, and Carmen Josefina Contreras Castillo. "Mechanically separated meat of broiler breeder and white layer spent hens." Scientia Agricola 61, no. 2 (2004): 234–39. http://dx.doi.org/10.1590/s0103-90162004000200018.

Pełny tekst źródła

Streszczenie:

There are aproximately 90 millions of hens housed in Brazil, that concluding their production cycle, become available for slaughter. The poultry industry has economical interest in the use of spent hen meat through adequate processes. This review evaluates the quality of mechanically separated spent hen meat by chemical and functional characteristics, such as proximate composition, colagen, cholesterol, bones, calcium and iron contents, fatty acid profile, pH and emulsifying capacity, and as raw material for sausage production. The mechanical separation of meat migth be a good alternative use

Style APA, Harvard, Vancouver, ISO itp.

20

Gromov, I. N., I. A. Subbotina, and E. V. Kotsiuba. "Features of pathomorphological manifestation of low pathogenic influenza in laying hens." Agrarian science, no. 3 (May 6, 2022): 19–22. http://dx.doi.org/10.32634/0869-8155-2022-357-3-19-22.

Pełny tekst źródła

Streszczenie:

Relevance. In the available literature, there are enough works devoted to the study of pathomorphological changes in low pathogenic influenza. The described changes are not sufficiently systematized, including in laying hens.Methods. The material for the research was the corpses of 60 laying hens, 235–428 days old, egg crosses “Tetra”, “Hisex Brown”, “Dekalb White”, killed for diagnostic purposes. Research methods: autopsy, histological examination.Results. Leading macroscopic changes: cyanosis of the comb and earrings; acute serous-catarrhal rhinitis, laryngotracheitis; acute fibrinous-purule

Style APA, Harvard, Vancouver, ISO itp.

21

Adeeba Naseer, Sumaira Raziq, Muhammad Muneer, et al. "Effect of Various By-products on the Egg Quality of Laying Hens (Gallus domesticus)." Indus Journal of Bioscience Research 3, no. 3 (2025): 662–70. https://doi.org/10.70749/ijbr.v3i3.953.

Pełny tekst źródła

Streszczenie:

This study was aimed to investigate the effects of byproducts on egg quality of white layer hens. A total of 18 hens 28-week old were brought to Animal Toxicology Laboratory of Zoology Department, The Islamia University of Bahawalpur, Pakistan. After habituation, hens were acclimatized with the research laboratory conditions for seven days. A total 18 birds of white laying hens were randomly divided to three groups each group contained six hens. The hens were kept at a photoperiod of 16 h/8 h light/dark cycle, and a room temperature of 25 °C ± 2°C. Feed and water were provided ad libitum and t

Style APA, Harvard, Vancouver, ISO itp.

22

Alig, Benjamin N., Peter R. Ferket, Ramon D. Malheiros, and Kenneth E. Anderson. "The Effect of Housing Environment on Egg Production, USDA Egg Size, and USDA Grade Distribution of Commercial White Egg Layers." Poultry 2, no. 2 (2023): 204–21. http://dx.doi.org/10.3390/poultry2020017.

Pełny tekst źródła

Streszczenie:

The housing environment has become a critical issue for consumers of eggs and egg products. Therefore, it is imperative to understand how various housing environments can affect the modern laying hen. In this study, alongside the 40th NC layer performance test, four different housing environments were chosen based on industry prevalence, which include conventional cages, barren, enrichable colony cages, enriched colony cages, and cage-free environments. Hens in these environments were raised following standard feeding and lighting practices. This study found that conventional cage and enriched

Style APA, Harvard, Vancouver, ISO itp.

23

Jansen, Simon, Mara Bues, Ulrich Baulain, et al. "Bone Health or Performance? Adaptation Response of Genetically Divergent Chicken Layer Lines to a Nutritive Calcium Depletion." Animals 10, no. 9 (2020): 1645. http://dx.doi.org/10.3390/ani10091645.

Pełny tekst źródła

Streszczenie:

In modern laying hybrids, calcium (Ca) homeostasis is immensely challenged by daily eggshell calcification. However, excessive mobilization of Ca from bones may lead to osteoporosis, which then manifests in a high incidence of poor bone quality. The aim of this study was to characterize the hens’ adaptation response to an alternating dietary Ca restriction. The animal model consisted of four purebred layer lines, differing in laying performance (high vs. moderately performing lines) and phylogenetic origin (white- vs. brown-egg lines). According to the resource allocation theory, hens selected

Style APA, Harvard, Vancouver, ISO itp.

24

Kop-Bozbay, Canan, Ahmet Akdag, Ayfer Bozkurt-Kiraz, Merve Gore, Orhan Kurt, and Nuh Ocak. "Laying Performance, Egg Quality Characteristics, and Egg Yolk Fatty Acids Profile in Layer Hens Housed with Free Access to Chicory- and/or White Clover-Vegetated or Non-Vegetated Areas." Animals 11, no. 6 (2021): 1708. http://dx.doi.org/10.3390/ani11061708.

Pełny tekst źródła

Streszczenie:

This study investigated the laying performance, egg quality, and egg yolk fatty acids (FAs) and cholesterol content in layer hens housed with free access to chicory- and/or white clover-vegetated areas. During a 16-week study, 400 Lohmann Brown hens (32 weeks old) housed with free outdoor access were allocated randomly into four groups, each with four replicates of 25 hens. Control hens were fed a conventional diet with free access to a soil area (C), whereas other hens were fed on a conventional diet with free access to a chicory (CI)- or white clover (TR)-vegetated area or a CI and TR mixtur

Style APA, Harvard, Vancouver, ISO itp.

25

Shi, Haipeng, Baoming Li, Qin Tong, Weichao Zheng, Dan Zeng, and Guobin Feng. "Effects of LED Light Color and Intensity on Feather Pecking and Fear Responses of Layer Breeders in Natural Mating Colony Cages." Animals 9, no. 10 (2019): 814. http://dx.doi.org/10.3390/ani9100814.

Pełny tekst źródła

Streszczenie:

Natural mating colony cages for layer breeders have become commonplace for layer breeders in China. However, feather pecking (FP) and cannibalism are prominent in this system. The objective of this study was to investigate the effects of four light-emitting diode (LED) light colors (white: WL, red: RL, yellow-orange: YO, blue-green: BG) with two light intensities for each color, on FP, plumage condition, cannibalism, fear, and stress. A total of 32 identical cages were used for the eight treatments (four replicates for each treatment). For both light intensities, hens in RL had a lowest freque

Style APA, Harvard, Vancouver, ISO itp.

26

Liu, Hongmei, Kui Ma, Miaomiao Liu, et al. "Histologic findings and viral antigen distribution in natural coinfection of layer hens with subgroup J avian leukosis virus, Marek’s disease virus, and reticuloendotheliosis virus." Journal of Veterinary Diagnostic Investigation 31, no. 5 (2019): 761–65. http://dx.doi.org/10.1177/1040638719868274.

Pełny tekst źródła

Streszczenie:

We investigated the histologic findings and viral antigen distribution in 3 cases of natural coinfection of layer hens with subgroup J avian leukosis virus (ALV-J), Marek’s disease virus (MDV), and reticuloendotheliosis virus (REV) in hens. At autopsy, diseased hens were found to have hepatosplenomegaly and thickened proventriculi, with white tumor nodules in the liver, spleen, lung, kidney, and ovary. Microscopically, most tissues had been infiltrated by neoplastic lymphocytes; the spleen, lung, proventriculus, heart, and liver had been infiltrated by both neoplastic lymphocytes and myeloblas

Style APA, Harvard, Vancouver, ISO itp.

27

Werner, Daniela, Ralf Bussemas, and Lisa Baldinger. "Crossing the Old Local Breed Deutsches Lachshuhn with the Layer Breed White Rock: Effects on Laying Performance of the Females and Fattening Performance of the Males." Animals 13, no. 19 (2023): 2999. http://dx.doi.org/10.3390/ani13192999.

Pełny tekst źródła

Streszczenie:

We tested the novel cross of the old local breed Deutsches Lachshuhn and the layer breed White Rock, as well as purebred Deutsches Lachshuhn, for their suitability as dual-purpose chickens under 100% organic husbandry conditions, and compared their performance and welfare with the two dual-purpose crosses New Hampshire × Bresse and Bresse × White Rock, which are already established in Germany. Chicks were reared in mixed-sex groups until slaughter of the males at 15 or 18 weeks of life. Data on laying performance and animal welfare were recorded until the hens’ 72nd week of life. Laying perfor

Style APA, Harvard, Vancouver, ISO itp.

28

Hakami, Zafar M., Rashed A. Alhotan, Ali R. Al Sulaiman, et al. "Enhancing Laying Hen Productivity and Health: Influence of Dietary Probiotic Bacillus Strains and Prebiotic Saccharomyces cerevisiae Yeast Cell Wall on Production Performance, Egg Quality, and Inflammatory Responses." Animals 15, no. 10 (2025): 1398. https://doi.org/10.3390/ani15101398.

Pełny tekst źródła

Streszczenie:

To evaluate the influences of dietary Bacillus-based probiotics and yeast-based prebiotics over 16 weeks, 500 37-week-old Hisex white layers were indiscriminately assigned to five dietary groups: T1, control; T2, control + Bacillus subtilis (1.1 × 108 CFU/kg); T3, control + Bacillus subtilis and Bacillus licheniformis (1.3 × 109 CFU/kg); T4, control + Bacillus coagulans (1.0 × 109 CFU/kg); and T5, control + Saccharomyces cerevisiae yeast cell wall (0.25 g/kg). Cumulatively (p < 0.001), T1 showed the highest feed consumption, while T4 and T5 had higher egg production than T1 and T3. T3 yield

Style APA, Harvard, Vancouver, ISO itp.

29

Dinev, Ivan. "Enzootic outbreak and spontaneous regression of keratoacanthomas in a commercial layer flock." Acta Veterinaria Hungarica 61, no. 3 (2013): 366–75. http://dx.doi.org/10.1556/avet.2013.022.

Pełny tekst źródła

Streszczenie:

This paper reports an enzootic outbreak and spontaneous regression of keratoacanthomas among adult layer hens with lesions on the skin of the legs. The observations were performed in a flock of 55,000 commercial layers (50,000 Lohmann White and 5,000 Lohmann Brown). At the age of 30 weeks, Lohmann White layers exhibited a number of growths (at an average of 60 hens per week, representing 0.1% of the flock) in the region of leg toes on a daily basis over 28 weeks that regressed during the remaining flock production period. Gross and histological investigations identified the lesions as keratoac

Style APA, Harvard, Vancouver, ISO itp.

30

Milisits, Gábor, Sándor Szász, Tamás Donkó, et al. "Comparison of Changes in the Plumage and Body Condition, Egg Production, and Mortality of Different Non-Beak-Trimmed Pure Line Laying Hens during the Egg-Laying Period." Animals 11, no. 2 (2021): 500. http://dx.doi.org/10.3390/ani11020500.

Pełny tekst źródła

Streszczenie:

The experiment was carried out with altogether 1740 non-beak-trimmed laying hens, which originated from Bábolna TETRA Ltd., representing two different types (Rhode Island Red (RIR) and Rhode Island White (RIW)) and four different lines (Lines 1–2: RIR, Lines 3–4: RIW). The plumage and body condition of randomly selected 120 hens (30 hens/line) was examined at 20, 46, and 62 weeks of age. The egg production and the mortality of the sampled hens were recorded daily. Based on the results, it was established that the lines differ clearly in most of the examined traits. It was also pointed out that

Style APA, Harvard, Vancouver, ISO itp.

31

Skrbic, Zdenka, Milos Lukic, Veselin Petricevic, et al. "Quality of eggs from pasture rearing layers of different genotypes." Biotehnologija u stocarstvu 36, no. 2 (2020): 181–90. http://dx.doi.org/10.2298/bah2002181s.

Pełny tekst źródła

Streszczenie:

The comparison of physical quality properties of table eggs of commercial hybrid Tetra SL and two native indigenous breeds of hens, Banat Naked Neck and Svrljig hen, was performed in conditions of alternative production in the pasture system in portable cages without the floor. The experiment was conducted during the vegetation period, at the age of hens of 53-57 weeks. In order to produce good quality eggs, the diet was designed with a complete mixture based on maize and soybean. In addition, constant availability of pastures was ensured. Egg sampling was performed in the morning and the init

Style APA, Harvard, Vancouver, ISO itp.

32

Sari, Revita Putna, and Rahmi Holinesti. "Analysis Of Carrageenan Addition On Quality Of Spent Layer Hens Meatballs." Jurnal Pendidikan Tata Boga dan Teknologi 4, no. 2 (2023): 352. http://dx.doi.org/10.24036/jptbt.v4i2.10986.

Pełny tekst źródła

Streszczenie:

Spent laying hens are laying hens whose production period has expired but the meat of rejected laying hens can still be utilized by processing them into restructured meats. One of the products of restructured meats is meatballs. However, meatballs that come from rejected layers of chicken meat have a slightly tough texture. So it is necessary to add food ingredients that can improve the texture of meatballs, namely carrageenan. Carrageenan has good properties as a chewing agent because it can form a gel, so it can be used as an alternative additive in the manufacture of rejected laying hen mea

Style APA, Harvard, Vancouver, ISO itp.

33

Souza, Otoniel, Carine Adams, Beatriz Rodrigues, et al. "The Impact of Bacillus subtilis PB6 and Chromium Propionate on the Performance, Egg Quality and Nutrient Metabolizability of Layer Breeders." Animals 11, no. 11 (2021): 3084. http://dx.doi.org/10.3390/ani11113084.

Pełny tekst źródła

Streszczenie:

The objective of this study was to evaluate the effects of Bacillus subtillis PB6, chromium propionate or a combination of the two on the performance, egg and eggshell quality, nutrient metabolizability and serum biochemistry of layer breeders. White Plymouth Rock and Red Rhodes Island breeder hens at 55 weeks of age were allocated in individual cages using a completely randomized block design with 16 replicates. Hens were fed control, control + probiotic (500 g/ton of Bacillus subtilis PB6), control + CrProp (50 g/ton of chromium propionate) and control + probiotic + CrProp diets from 55 to 7

Style APA, Harvard, Vancouver, ISO itp.

34

LEESON, S., and J. D. SUMMERS. "RESPONSE OF WHITE LEGHORNS TO DIETS CONTAINING GROUND OR WHOLE TRITICALE." Canadian Journal of Animal Science 67, no. 2 (1987): 583–85. http://dx.doi.org/10.4141/cjas87-060.

Pełny tekst źródła

Streszczenie:

Growing leghorn pullets and laying hens were fed diets containing triticale as the sole cereal source. Body weight of pullets was not affected (P > 0.05) by up to 70% dietary inclusion of triticale. When layer diets contained 70% whole or ground triticale in place of corn, egg production was depressed (P < 0.05) while birds consumed more feed (P < 0.05). The feed intake effect is discussed in relation to the energy value of triticale. Key words: Triticale, pullets

Style APA, Harvard, Vancouver, ISO itp.

35

YAHAYA, H. K., A. K. OLUTUNMOGUN, and E. T. BOLUFAWI. "EGG WEIGHT, SHELL THICKNESS AND CHOLESTEROL CONCENTRATION IN SPECIALIZED BREEDS OF EGG-TYPE CHICKENS AS INFLUENCED BY LAYER AGE." FUDMA Journal of Agriculture and Agricultural Technology 9, no. 4 (2024): 94–98. http://dx.doi.org/10.33003/jaat.2023.0904.13.

Pełny tekst źródła

Streszczenie:

The effect of breeds on egg quality of egg-type chickens from Plymouth Rock and White Leghorn commercial laying hens was investigated. The aim was to determine the egg weight, cholesterol levels and shell thickness on a commercial poultry farm over twelve weeks. A total of 408 laying hens were evaluated for the two breeds, which commenced from the fifth week into lay for twelve weeks. The birds were aged 24 weeks at the commencement of the study. The biological material consisted of 50 randomly collected eggs per week, and all eggs laid during the study period were weighed. Conventional AOAC m

Style APA, Harvard, Vancouver, ISO itp.

36

Chudak, R. A., and S. D. Barabash. "Egg production of laying hens with the use of phytobiotics." Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies 27, no. 102 (2025): 164–68. https://doi.org/10.32718/nvlvet-a10224.

Pełny tekst źródła

Streszczenie:

The aim of the work was to study the effectiveness of the effect of a phytobiotic feed additive on egg production and egg quality in laying hens. Phytobiotics (biologically active compounds extracted from plants) are one of the alternatives due to their antimicrobial activity and its modulation of the intestinal microbiota and improvement of productive properties. The experiment lasted 180 days. 4 groups of laying hens of the “Dominant” breed, 150 heads each, were selected for the experiment. It was found that the use of a phytobiotic feed additive in the feeding of laying hens increased the g

Style APA, Harvard, Vancouver, ISO itp.

37

Leke, Jein Rinny, Erwin Wantasen, Ratna Siahaan, and Florencia Sompie. "The Nutritional Content of Egg and Blood’s Lipid Profile of Layer Fed by Kepok Banana Meal (Musa paradisiaca L.) as Feed Supplement." ANIMAL PRODUCTION 24, no. 2 (2022): 83–90. http://dx.doi.org/10.20884/1.jap.2022.24.2.115.

Pełny tekst źródła

Streszczenie:

This study was aimed to evaluate the nutritional of content of egg and the fat profile of layers by feeding of kepok Banana flour (Musa paradisiaca formantypica) as feed supplement. A total of 200 laying 58-week-old hens were used in the study, with 5 treatments and 5 replications, each of which was filled with 8 chickens. The treatments were applied in a completely randomized design, continued with Duncan’s test. The treatments given by kepok banana flour were 0%, 5%, 10%, 15% and 20% substitution of corn flour. This research was conducted for 8 weeks. The parameters measure included egg crud

Style APA, Harvard, Vancouver, ISO itp.

38

Genc, Murat, and Ugur Ozenturk. "The effect of worker clothing color on stress in laying hens." Archives Animal Breeding 67, no. 2 (2024): 145–51. http://dx.doi.org/10.5194/aab-67-145-2024.

Pełny tekst źródła

Streszczenie:

Abstract. The environment in which animals are kept must provide suitable conditions for their species. This includes ensuring that animals are healthy, well-fed, safe, able to exhibit species-specific behaviors, not experiencing fear or pain, and not under chronic or acute stress. Poultry welfare is achieved when birds are raised in environments that meet their physiological and ethological needs. Fear can significantly impact animal welfare. Chickens have been significantly altered by human artificial selection. Despite this, they exhibit reactivity towards humans and tend to avoid them. Pou

Style APA, Harvard, Vancouver, ISO itp.

39

Wang, Yi-Tong, Yi-Fan Chen, Jun-Jie Zhang, et al. "Comparative Analysis of the Ultrastructure, Bubble Pores, and Composition of Eggshells of Dwarf Layer-White and Guinea Fowl." Animals 14, no. 10 (2024): 1496. http://dx.doi.org/10.3390/ani14101496.

Pełny tekst źródła

Streszczenie:

The decrease in eggshell quality seriously affects production efficiency. Guinea fowl (GF) eggs possess strong eggshells because of their unique crystal structure, and few systematic studies have compared laying hen and GF eggs. Sixty eggs were collected from both 40-week-old Dwarf Layer-White (DWL-White) laying hens and GF, and the eggshell quality, ultrastructure, bubble pores, and composition were measured. The results showed that the DWL-White eggs had a higher egg weight and a lower eggshell strength, strength per unit weight, thickness, and ratio than the GF eggs (p < 0.01). There wer

Style APA, Harvard, Vancouver, ISO itp.

40

Wolak, Dominika, Noboru Saito, and Anna Hrabia. "Alterations in aquaporin 4 expression in the chicken ovary following tamoxifen treatment." Folia Biologica 72, no. 1 (2024): 11–15. http://dx.doi.org/10.3409/fb_72-1.02.

Pełny tekst źródła

Streszczenie:

Previously, we demonstrated the follicular size- and a layer of the follicular wall-dependend expression of aquaporin 4 (AQP4) in the chicken ovary. In this study, we aimed to examine the mRNA and protein expression of aquaporin 4 (AQP4) in the chicken ovary during a pause in laying induced by a tamoxifen (TMX, oestrogen receptor modulator) treatment. Ovarian white and yellowish follicles and the granulosa and theca layers of the largest yellow preovulatory follicles were harvested from control and TMX-treated (daily until the cessation of egg-laying) hens. It was found that the TMX treatment

Style APA, Harvard, Vancouver, ISO itp.

41

Polina, S. I., V. G. Vertiprakhov, N. A. Sergeenkova, and V. V. Eremenko. "Duodenal-ileal ratio of digestive enzymes when using different protein supplements in the diet of laying hens." International Journal of Veterinary Medicine, no. 3 (October 11, 2023): 145–55. http://dx.doi.org/10.52419/issn2072-2419.2023.3.145.

Pełny tekst źródła

Streszczenie:

Creation of domestic poultry crosses and development of optimal diets for them is an urgent problem, since in vivo studies using fistula technologies are currently few. The present work presents data on determination of duodenal and ileal activity of digestive enzymes when protein additives of vegetable (soybean meal and cake) and animal origin (fish meal and meat and bone meal) are used in the diet of laying hens. Experiments were performed on laying hens (Gallus gallus L.) of Hisex White cross (n=24, K.A. Timiryazev Russian State Agricultural Academy, 2022,2023) with chronic duodenal and ile

Style APA, Harvard, Vancouver, ISO itp.

42

Васильева, Н. В., та З. В. Цой. "Влияние комплексной кормовой добавки из регионального сырья на продуктивность кур-несушек". Вестник Бурятской государственной сельскохозяйственной академии имени В. Р. Филиппова, № 1(78) (27 березня 2025): 148–53. https://doi.org/10.34655/bgsha.2025.78.1.018.

Pełny tekst źródła

Streszczenie:

В статье изложены материалы научно-хозяйственного опыта по изучению влияния луба бархата амурского и отходов переработки сосны корейской в рационах кур несушек промышленного стада. Цель наших исследований заключалась в изучении возможности включения в рационы кур-несушек промышленного стада комплексную кормовую добавку, приготовленную из отходов переработки бархата амурского и шелухи шишек сосны корейской, а также определить оптимальные дозы скармливания данной добавки. Научно-хозяйственный эксперимент был проведен в условиях Приморского края в КФХ «Виктория» в течение 133 дней на кроссе Хайсе

Style APA, Harvard, Vancouver, ISO itp.

43

Wulandari K. E, Yenni Tyas, R. Susanti, and Siti Harnina Bintari. "Analisis Perkembangan Titer Antibodi Hasil Vaksinasi Infectious Bronchitis pada Ayam Petelur Strain Hisex Brown." Life Science 8, no. 1 (2019): 25–33. http://dx.doi.org/10.15294/lifesci.v8i1.29987.

Pełny tekst źródła

Streszczenie:

Infectious bronchitis (IB) is a disease that attacks the chicken's respiratory system caused by an infectious bronchitis virus. IB transmission can occur directly and indirectly. IB disease transmission can be done by vaccination. Vaccination can fail so that to determine the success of the vaccination program an antibody titer monitor is performed using serological tests. ELISA is one of the serological tests that can be used to measure antigens/antibodies. The main principle of the ELISA technique is the use of enzyme indicators for immunological reactions. This study aims to analyze the dif

Style APA, Harvard, Vancouver, ISO itp.

44

Pilifayo, Helga Ayunda, and Rahmi Holinesti. "Analysis Of Chayote Puree Addition To The Quality Of Spent Layer Hens Dumplings." Jurnal Pendidikan Tata Boga dan Teknologi 4, no. 2 (2023): 165. http://dx.doi.org/10.24036/jptbt.v4i2.1390.

Pełny tekst źródła

Streszczenie:

The research is motivated by the use of spent layerhens which is still lacking compared to broiler chickens, because the meat is tough, so it is not enjoyed by some people. The addition of chayote puree in this research, because chayote contains has 6.7% pectin compound that is useful for thickening the texture of spent layerhens dumplings. This reseacrch aims to analyze the effect of adding chayote puree with a percentage of 0%, 15%, 25%, 35% on the quality of spent layerhens dumplings. This type of research is an experiment, using a completely randomized design (CRD) with 4 treatments and 3

Style APA, Harvard, Vancouver, ISO itp.

45

Okonkwo, V. N. "Performance of laying hens fed graded levels of dried yellow cocoyam corm meal (Xanthosoma sagittifolium) as partial replacement for maize." Journal of Agriculture and Food Sciences 18, no. 1 (2020): 27–39. http://dx.doi.org/10.4314/jafs.v18i1.3.

Pełny tekst źródła

Streszczenie:

Yellow cocoyam (Xanthosoma sagittifolium), a tropical root crop is presently underutilized as energy feedstuff in poultry diets. The objective of this experiment was to evaluate the effects of dried cocoyam corm meal as partial replacement for maize on egg laying and haematological parameters of layer hens. Fifty-six (56) days feeding trial was conducted using one hundred and twenty (120) Isa brown layer hens of twenty weeks (20 weeks) old. Sample of the cocoyam corm meal used for this study was analyzed in the laboratory to determine its proximate nutrient composition. Results showed moisture

Style APA, Harvard, Vancouver, ISO itp.

46

Giampietro-Ganeco, Aline, Hirasilva Borba, Aline Mary Scatolini-Silva, Marcel Manente Boiago, Pedro Alves de Souza, and Juliana Lolli Malagoli de Mello. "QUALITY ASSESSMENT OF EGGS PACKED UNDER MODIFIED ATMOSPHERE." Ciência e Agrotecnologia 39, no. 1 (2015): 82–88. http://dx.doi.org/10.1590/s1413-70542015000100010.

Pełny tekst źródła

Streszczenie:

Eggs are perishable foods and lose quality quickly if not stored properly. From the moment of posture to the marketing of egg, quality loss occurs through gas exchange and water through the pores of the shell with the external environment and thus, studies involving modified atmosphere packaging are extremely important. The aim of the present study is to assess the internal quality of eggs packed under modified atmosphere and stored at room temperature. Six hundred and twelve fresh commercial eggs from 38-week old Hisex White laying hens were used. The present study was conducted in a complete

Style APA, Harvard, Vancouver, ISO itp.

47

Habig, Christin, Martina Henning, Ulrich Baulain, Simon Jansen, Armin Manfred Scholz, and Steffen Weigend. "Keel Bone Damage in Laying Hens—Its Relation to Bone Mineral Density, Body Growth Rate and Laying Performance." Animals 11, no. 6 (2021): 1546. http://dx.doi.org/10.3390/ani11061546.

Pełny tekst źródła

Streszczenie:

Keel bone damage is an important animal welfare problem in laying hens. Two generations of four layer lines, differing in phylogenetic background and performance level and kept in single cages or floor pens were weighed and scored for keel bone deformities (KBD) during the laying period. KBD, keel bone fractures (KBF) and the bone mineral density (BMD) of the keels were assessed post mortem. For BMD, relationships to laying performance and body growth were estimated. Caged hens showed more deformities, but fewer fractures and a lower BMD of the keel bone than floor-housed hens. White-egg layer

Style APA, Harvard, Vancouver, ISO itp.

48

Mosco, Elyse, David Kilroy, and Arun H. S. Kumar. "Assessment of Pupillometry Across Different Commercial Systems of Laying Hens to Validate Its Potential as an Objective Indicator of Welfare." Poultry 4, no. 3 (2025): 31. https://doi.org/10.3390/poultry4030031.

Pełny tekst źródła

Streszczenie:

Background: Reliable and non-invasive methods for assessing welfare in poultry are essential for improving evidence-based welfare monitoring and advancing management practices in commercial production systems. The iris-to-pupil (IP) ratio, previously validated by our group in primates and cattle, reflects autonomic nervous system balance and may serve as a physiological indicator of stress in laying hens. This study evaluated the utility of the IP ratio under field conditions across diverse commercial layer housing systems. Materials and Methods: In total, 296 laying hens (Lohmann Brown, n = 2

Style APA, Harvard, Vancouver, ISO itp.

49

Yıldırım, Hakan, and Şerafettin Kaya. "Egg Production and Quality Traits of Layers kept in Free Range Housing System." Greener Journal of Agricultural Sciences 7, no. 2 (2017): 060–64. https://doi.org/10.15580/GJAS.2017.2.032217041.

Pełny tekst źródła

Streszczenie:

The objective of this study was to compare egg quality and yield in laying hens of two different housing systems indoor and free range. In this study, 120 H&N (Nick-Chick) white egg layer pullets were used. They were divided to equally two groups free range and indoor housing system. Indoor birds were individually caged while free range birds were allowed to access free range grass paddock (red clover+ fescue + brome grass area, 4 m<sup>2</sup>/1 bird) plus floored area with wooden shavings.  Standard feeding regimen was applied on experimental laying hens. Their egg traits were recor

Style APA, Harvard, Vancouver, ISO itp.

50

Wan, Yi, Sihua Jin, Chendong Ma, Zhicheng Wang, Qi Fang, and Runshen Jiang. "Effect of strain and age on the thick-to-thin albumen ratio and egg composition traits in layer hens." Animal Production Science 59, no. 3 (2019): 416. http://dx.doi.org/10.1071/an17231.

Pełny tekst źródła

Streszczenie:

Much attention has been paid to the proportion of thick albumen of eggs in layer production in recent decades, owing to economics, appearance and consumption. In this study, we investigated the effect of strain and age on the ratio of thick-to-thin white and relative egg composition traits in two different layer populations with 770 birds in total at 30, 40 and 50 weeks of age. Eggs were collected from the D3 and R2 strains to measure egg composition traits for 3 successive days at each experimental week. The results showed that the egg weight, albumen height and Haugh unit of eggs in the D3 s

Style APA, Harvard, Vancouver, ISO itp.

Oferujemy zniżki na wszystkie plany premium dla autorów, których prace zostały uwzględnione w tematycznych zestawieniach literatury. Skontaktuj się z nami, aby uzyskać unikalny kod promocyjny!