Relevant bibliographies by topics / Chickens Barley as feed

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Academic literature on the topic 'Chickens Barley as feed'

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Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Chickens Barley as feed"

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CLASSEN, H. L., G. L. CAMPBELL, and J. W. D. GROOTWASSINK. "IMPROVED FEEDING VALUE OF SASKATCHEWAN-GROWN BARLEY FOR BROILER CHICKENS WITH DIETARY ENZYME SUPPLEMENTATION." Canadian Journal of Animal Science 68, no. 4 (December 1, 1988): 1253–59. http://dx.doi.org/10.4141/cjas88-140.

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Nine barley samples representative of cultivars grown throughout Saskatchewan were fed with dietary β-glucanase supplementation (Aspergillus niger) as mixed feed to broiler chickens. Experiment 1 compared barley diets with or without enzyme addition for broilers from 0 to 21 d, while exp. 2 involved comparison of broiler performance to market weight (0–42 d) when fed enzyme-supplemented barley diets or a wheat/corn-based diet. In exp. 1, chicks fed barley diets with the enzyme additive gained more weight and converted feed more efficiently than those given diets without the enzyme (P < 0.01). Variability among barley diets, as indicated by chick growth and feed efficiency, was reduced by the addition of the enzyme. In exp. 2, broilers consuming barley with dietary enzyme were lighter than their wheat/corn-fed counterparts at 21 and 42 d (P < 0.05). Body weight gain from 21 to 42 d was not significantly affected by dietary treatment. Feed-to-gain ratio was higher for barley-fed broilers (P < 0.05) in comparison to birds fed the wheat/corn diet, reflecting the lower nutrient density of the barley diets. Key words: Broiler chickens, barley, β-glucanase
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Kalantar, Majid, and Mohammad Hassan Kalantar. "Effects of Different Source of Dietary Non-Starch Polysaccharides on Growth Performance, Physiological Characteristics and Gene Expression of GLUT2 in Chickens." International Journal of Pharmacology, Phytochemistry and Ethnomedicine 6 (January 2017): 21–29. http://dx.doi.org/10.18052/www.scipress.com/ijppe.6.21.

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Growth and physiological characteristics of meat-type chicken such as serum immunoglobulin concentration, digesta pH and viscosity, pancreatic enzyme activity, organelle weights, and gene expression of intestinal GLUT2 of chickens was studied by means of 375 day-old chicks which randomly assigned to three treatments with five replicates in a completely randomized design. Two different types of cereal-based diets (wheat, and barley) were used as experimental groups and a corn-based diet was also considered to serve as control group. All diets had similar contents of crude protein, energy, and total non-starch polysaccharides (NSP). Results indicated that different dietary source of NSP had significantly (P<0.01) affected growth traits, so barley and wheat diets had maximum feed intake and feed conversion rate, inversely minimum weight gain than corn diet. Intestinal physicochemical characteristics such as pH and viscosity of digesta significantly (P<0.01) changed by different dietary source of NSP. Wheat and barley diets had minimum pH, and inversely maximum viscosity compared to corn diet. The maximum values of fat pad and liver percentage, in contrary, minimum values of pancreas and gut length belonged to corn diet (P<0.01). Serum immunoglobulin concentrations of IgG and IgM for wheat and barley diets were higher than their counterparts fed on corn (P<0.01). Gene expression of intestinal GLUT2 of chickens based on mean fold change after feeding of wheat or barley was at upper level compared to corn diet (P<0.01). In conclusion, based on findings of present study, feeding of different dietary NSP sources to broiler chickens significantly affected growth traits and internal organelle percentages, as well as physiological and immune responses. Also gene expression of intestinal GLUT2 well affected by cereal NSP sources through feeding of wheat or barley.
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MacLean, J., A. B. Webster, and D. M. Anderson. "Effect of 2-row or 6-row barley and a commercial enzyme preparation on growing-finishing broiler chickens from 3 to 6 weeks of age." Canadian Journal of Animal Science 74, no. 3 (September 1, 1994): 511–17. http://dx.doi.org/10.4141/cjas94-072.

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A study was conducted to determine the efficacy of barley-based diets with or without a crude enzyme preparation for male broiler chickens from 3 to 6 wk of age. Treatments consisted of feeding grower and finisher diets based on two locally grown cultivars of barley, 2-row (unspecified cultivar) and 6-row (Leger) added at 0, 20, 40 and 60%, with 0 or 1000 mg commercial enzyme preparation/kg diet. The starter diet contained no barley. Enzyme addition to the 2-row barley-based diets resulted in significantly heavier 6 wk body weights compared to the non-supplemented diets and significantly improved feed efficiencies during the 5- to 6-wk period indicating an enzyme response in older birds. Level of 2-row barley did not have significant main effects on 6 wk body weight, weight gain, feed consumption, feed efficiency, mortality, or live grade, except for leg abnormalities. A significant linear contrast revealed increased percentage of leg abnormalities as the level of barley in the diet increased. Significant interactions were found between level of 2-row barley and enzyme addition for feed consumption and feed efficiency from 3 to 5 wk of age. Significant quadratic contrasts for level of barley within non-supplemented treatments indicated lower feed consumption of the 20 and 40% barley-fed birds than the 0 and 60% barley-fed birds during the 3-to 5-wk period. During the 5- to 6-wk period, feed consumption of the enzyme-supplemented diets increased linearly with percentage of barley in the ration. Neither level of 6-row barley nor enzyme addition to the 6-row barley diets had significant main effects on 6 wk body weight, weight gain, feed consumption, feed efficiency, or live grade. Significant interactions were found between level of 6-row barley and enzyme addition for 6 wk body weight, 3–6 wk weight gain and feed consumption for the 5–6 wk period. A significant quadratic contrast for level of barley within non-supplemented treatments revealed lower feed consumption of the 20 and 40% barley-fed birds compared to the 0 and 60% barley-fed birds during the 5–6 wk period. Thus, for the diets without glucanase, there was an effect of barley percentage which became apparent at different ages depending on the barley cultivar. As with the 2-row barley diets, there was a significant linear increase in feed consumption of the enzyme-supplemented diets as the level of 6-row barley in the diet increased during the 5–6 wk period. It appears from the results that the grower and finisher diets could contain up to 60% barley without being detrimental to growth but incidence of mortality or leg abnormality may increase somewhat. Enzyme addition improved feed efficiency for the 2-row barley diets, and erased the quadratic effects of barley level apparent when diets did not include β-glucanase. Key words: Barley, broiler chicken, enzyme, growth
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ROTTER, B. A., R. R. MARQUARDT, W. GUENTER, C. BILIADERIS, and C. W. NEWMAN. "IN VITRO VISCOSITY MEASUREMENTS OF BARLEY EXTRACTS AS PREDICTORS OF GROWTH RESPONSES IN CHICKS FED BARLEY-BASED DIETS SUPPLEMENTED WITH A FUNGAL ENZYME PREPARATION." Canadian Journal of Animal Science 69, no. 2 (June 1, 1989): 433–39. http://dx.doi.org/10.4141/cjas89-048.

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The effects of in vitro extracting conditions on the viscosity of different barley cultivars were determined (exps. 1–3). Then, the relationship between three in vitro viscosity assays (method I, raw barley-HCl-KCl buffer; method II, autoclaved barley-H2O; and method III, raw barley-H2O) was compared with the performance of chicks fed barley-based diets supplemented with fungal enzyme (exp. 4). A significant three-way interaction (P < 0.0001) among fineness of grind, extraction method and barley cultivar showed that viscosity values for different barleys were not uniformly affected by the other two factors. Part of this differential response was eliminated by the use of finely ground barley (< 0.5-mm-mesh screen). When the three extracting methods were compared, method I gave higher readings than method II for high-viscosity barleys, and the reverse was true for low-viscosity barleys. The ranking of the barleys remained the same. Method III gave the lowest viscosity values, perhaps due to active endogenous β-glucanases in water extracts of the raw barley. When different barley cultivars were extracted by method I and subjected to different shear rates the viscosity differences were much more pronounced at the lower shear rates, particularly for high-viscosity barleys. Finally, the same seven barleys were compared in a feeding trial with chickens. The improvement in weight gain due to supplementation with a crude enzyme preparation from Trichoderma viride (Cellulase Tv) ranged from 2 to 41 % (P < 0.05). Similar improvements were obtained for feed consumption, feed-to-gain ratio and dry matter retention (P < 0.05). The highest simple correlation coefficients were between the viscosity of barleys that had been extracted by method I, measured at low shear rates, and relative weight gain (r = 0.97, week 1 plus week 2). The correlation coefficients using low shear rate data were slightly higher than those with high shear rate data. These results indicate that most pronounced differences among barleys were obtained with finely ground samples (<0.5 mm), extracted for one hour at 38 °C, using a low pH 1.5 buffer (method I) and assayed at low shear rates. Under these conditions the viscosity data reflected the antinutritive properties of barley, which in turn were reduced or abolished by adding a crude enzyme preparation to the diet. Key words: Viscosity, barley extracts, chicks, fungal enzyme
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Moharrery, A. "Comparison of performance and digestibility characteristics of broilers fed diets containing treated hulled barley or hulless barley." Czech Journal of Animal Science 51, No. 3 (December 5, 2011): 122–31. http://dx.doi.org/10.17221/3919-cjas.

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This study was performed with growing chickens (14 to 56 days of age) to evaluate the effects of feeding a barley-based diet. The treatments were maize diet (1) as a control, barley diet with (4) or without (2) the commercial enzyme &beta;-glucanase, barley treated with rumen fluid without protozoa (3) and hulless barley (5). The effects of treatments were investigated in a 42-day trial using 360 sexed broiler chickens. In a digestibility trial, 15&nbsp;male broiler chicks were used at 45 days of age. In this regard, five treatments were offered to chickens in three replications individually. The experimental design for performance investigation was a completely randomised one with a 5 &times; 2 factorial arrangement of treatments. Each of the five treatments was replicated three times per sex (n&nbsp;= 3). The levels of barley in treatments (2) to (5) were 35% during the growing (14 to 42 days) and finishing (42 to 52 days) period. At the end of trial, two birds from each pen were selected and slaughtered. Blood samples were taken just before slaughter of birds. No significant differences (P &gt; 0.05) were observed between (3) to (5) treatments with maize diet in weight gains, feed intake and feed conversion, but barley with no treatment (2) showed lower weight gain compared to the enzyme treatment and hulless barley diet (P &lt; 0.05). Ether extract digestibility decreased significantly in all barley diets compared with maize diet (P &lt; 0.05). Digestibility of DM, CP, and NFE was lower in barley diet with no treatment, in comparison with other treatments (P &lt; 0.05). Reduction of serum cholesterol was observed in birds on hulless barley diet (P &lt; 0.05), but serum triacylglycerols and glucose did not show any significant differences between treatments (P &gt; 0.05). Mean percentage yield of breast showed the highest percentage in barley diet with no treatment (P &lt; 0.05) and abdominal fats were produced in lowest amounts in carcasses on hulless barley diets (P &lt; 0.05). &nbsp; &nbsp;
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Brenes, A., W. Guenter, R. R. Marquardt, and B. A. Rotter. "Effect of β-glucanase/pentosanase enzyme supplementation on the performance of chickens and laying hens fed wheat, barley, naked oats and rye diets." Canadian Journal of Animal Science 73, no. 4 (December 1, 1993): 941–51. http://dx.doi.org/10.4141/cjas93-095.

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Three experiments were conducted to evaluate the effects of β-glucanase/pentosanase enzyme complex (Trichoderma viride, Roxazyme® G) on the performance of Leghorn chicks and laying hens fed wheat, barley, oats or rye diets. In the first experiment, enzyme addition (0.2 and 0.4 g kg−1) improved weight gain and feed efficiency in Leghorn chicks fed hulless barley (45 and 18%, respectively) and naked oat-based diets (35 and 15%, respectively). No response to dietary enzymes was evident when chicks were given the wheat diet. In the second experiment, the addition of Roxazyme® G to diets containing hulless barley (0.1 g kg−1) and rye (4.0 g kg−1) improved feed consumption (8 and 16%, respectively), weight gain (21 and 35%, respectively) and feed-to-gain ratios (11 and 14%, respectively). Relative gizzard weights of birds fed the rye diet were reduced by 18% when enzyme was added to this diet. In the third experiment, replacing all the wheat with hulless barley, naked oats or rye in diets for young pullets had no effect on overall performance during a 12-wk laying trial. Vent feather soilage increased with the incorporation of naked oats and rye. Enzyme supplementation had a beneficial effect on weight gain and feed intake but not on egg production, initial egg weight, average egg weight, egg specific gravity, Haugh unit score, and mortality. Key words: Grain, chickens, laying hens, dietary enzyme
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Babatunde, Olufemi Oluwaseun, Chan Sol Park, and Olayiwola Adeola. "Nutritional Potentials of Atypical Feed Ingredients for Broiler Chickens and Pigs." Animals 11, no. 5 (April 21, 2021): 1196. http://dx.doi.org/10.3390/ani11051196.

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Diets play an important part in monogastric nutrition. This is because diets are comprised of various feed ingredients that supply energy and nutrients required by broiler chickens or pigs for normal growth and development. The main feed ingredients used for formulating diets for pigs and chickens are comprised of cereals and oilseed meals. Corn and soybean meal (SBM) are mostly used in North America for animal feeds. However, due to geographical locations, availability, and cost, ingredients such as wheat, barley, and canola meal are often used for feeding pigs and chickens. Overdependence on common ingredients such as corn and SBM for decades has resulted in rising costs of animal production. Therefore, the need has risen to examine the potentials of alternative feed ingredients capable of supplying the required energy and nutrients for monogastric animals. Research has been carried out to identify and evaluate several uncommon feed ingredients and their utilization by broiler chickens and pigs. Thus, this review enumerates the nutritional potentials of feed ingredients in 4 main nutritional classes using information from articles in peer-reviewed journals. Feeding practices, advantages, and limitations of using certain uncommon feed ingredients are discussed. In addition, species-specific factors in terms of practical applications are explored.
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Inborr, Johan. "Supplementation of pig starter diets with carbohydrate-degrading enzymes - stability, activity and mode of action." Agricultural and Food Science 3, Supplement (December 1, 1994): 1–21. http://dx.doi.org/10.23986/afsci.72724.

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A total of five experiments were conducted to investigate the stability of feed enzymes to steam pelleting and the proteolytic conditions in the gastrointestinal (GI) tract of pigs and poultry, and to try and elucidate the mechanisms behind the improved performance of pigs fed enzyme-supplemented barley/wheat-based diets. The results of the pelleting stability experiment showed that the commercial feed enzyme employed maintained most of its activity in conditioning temperatures up to 85°C.Furthermore, it became evident that measuring enzyme recovery in pelleted feeds by in-vitro assay methods underestimated the actual activity. For this purpose in-vivo models such as that based on gut viscosity measurements in broiler chickens gives a more accurate estimate. Gut viscosity also correlated highly with live weight gain (r2=0.624) and feed utilisation (r2=0.616) of broiler chickens. The in-vitro incubations using conditions similar to those of the GI tract showed that enzymes are not readily denatured and inactivated in such conditions and indicated that wheat and wheat gluten, and possibly similar feed ingredients, may help to maintain the activity longer either due to their buffering capacity or by providing substrates for the enzymes. This was supported by the results of the in-vivo measurements. In the stomach of pigs, 10-20per cent of the xylanase and β-glucanase activities added to the diets could still be recovered 4 hours after feeding. In the ileum, proportionally more added enzyme activities were recovered between 4 and 6 than 0 and 2 hours after feeding. In broiler chickens fed an enzyme-supplemented barley-based diet, β-glucanase was fully recovered in the proximal part of the small intestine, giving further proof of the stability of the enzymes employed to the conditions of the GI tract. When a mixture of fibre- and starch-degrading enzymes were added to a diet based on wheat and barley, β-glucan, starch and dry matter digestibilities were significantly (P
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Tatiyanicheva, Olga, Oksana Popova, Alla Khokhlova, Natalya Maslova, and Tatiyana Ovchinnikova. "The use of sprouted barley grain in the diet of meat hens of the parent herd." E3S Web of Conferences 273 (2021): 02010. http://dx.doi.org/10.1051/e3sconf/202127302010.

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The use of sprouted barley grain for an adult poultry of a parent flock of meat production is of scientific and practical interest. According to the research methodology, we formed 4 groups of experimental birds, at the age of 140 days, 10 chickens and 10 cockerels in each. The test period lasted 280 days. The poultry of the control group received a standard complete feed containing barley grains in an amount of 20% by weight of the compound feed, in accordance with the adopted feeding scheme. Poultry of groups 2,3,4 received in addition to the main diet sprouted barley grain in the amount of 20 g per head. In this experiment, the question of the effectiveness of using sprouted grain, depending on the feeding regime, was considered. A positive trend was revealed when feeding sprouted grain in addition to a complete feed, in the evening.
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Baah, J., T. A. Scott, L. M. Kawchuk, J. D. Armstrong, L. B. Selinger, K. J. Cheng, and T. A. McAllister. "Feeding value in broiler chicken diets of a potato expressing a β-glucanase gene from Fibrobacter succinogenes." Canadian Journal of Animal Science 82, no. 1 (March 1, 2002): 111–13. http://dx.doi.org/10.4141/a01-007.

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Including a transgenic potato cultivar as a source of β-glucanase in CDC Silky barley-based diets for broiler chickens at 0.6 kg t–1 improved (P < 0.05) feed conversion by 8.8%; at 1.2 kg t–1 it reduced (P < 0.05) ileal digesta viscosity by 42%. With improved level and/or activity of expression, transformed potato may have potential as an enzyme additive. Key words: Barley, broilers, β-glucanase, performance, transformed potato
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Dissertations / Theses on the topic "Chickens Barley as feed"

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Noble, Donald O. "Feed intake in chickens : genetic and social factors /." Thesis, This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-09292009-020101/.

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Boychuk, Janet Lee Lynn. "Evaluation of micronized dehulled barley for pigs and broiler chickens." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq23232.pdf.

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Rising, Russell Marshall. "Indirect calorimetry evaluations of energy utilization by laying hens: Nutrient and temperature effects." Diss., The University of Arizona, 1988. http://hdl.handle.net/10150/184626.

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A four-chamber indirect calorimeter was constructed to evaluate energy utilization by laying hens as affected by dietary energy, protein and amino acid levels and by housing temperature. Heat production was measured by indirect calorimetry and metabolizable energy was determined for each diet. Net energetic efficiency was calculated as the slope of the regression of energy balance (metabolizable energy intake - heat production) on metabolizable energy intake. Hens fed diets formulated without protein specifications to provide amino acid levels equivalent to those provided by 14.5 or 16% protein, had higher (P < .05) net energetic efficiencies than hens fed diets formulated with specified protein levels. Addition of 3% animal fat to the higher (16% protein) amino acid diets produced the greatest increases (P < .05) in net efficiency, but decreased (P < .05) efficiency in the lower (14.5% protein) amino acid diet formulated without a protein specification. Metabolizable energy available for production was improved (P < .05) with animal fat additions to all but the diet formulated to the higher (16% protein) amino acid levels. Animal fat, cottonseed oil, corn oil, cod liver oil and safflower oil were used to determine effects of fat source on energy utilization by laying hens at 21.1 C. Higher net efficiencies were obtained for the cottonseed and safflower oil diets (99.1 and 99.8%, respectively) than for the basal diet (90.6%) or the other fat sources (cod liver oil = 86.0%, corn oil = 87.3%, animal fat = 91.1%). Full vs. meal (two 1-hr periods daily) feeding and total sulfur amino acid deficiency effects on energy utilization were evaluated. Meal feeding reduced (P < .05) metabolizable energy available for production while increasing (P < .05) maintenance metabolizable energy requirements. Feeding regime did not reverse the decline (P < .05) in net efficiency (89.2-89.7 to 81.7-82.6%) observed with total sulfur amino acid deficiency. Hens were fed either 7% animal fat or 7% corn oil and maintained at 10, 21.1 and 32.2 C to study effects of fat source and temperature on energy utilization. From 10 to 32.2 C, net energetic efficiency increased from 87.6 to 92.6% with animal fat. Corn oil showed the highest net efficiency (93.9%) at 10 C, while animal fat was highest (92.6%) at 32.2 C. Hens fed animal fat required the most (P < .05) maintenance metabolizable energy and had the highest (P < .05) fasting heat productions at each temperature.
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Garaleviciene, Dalia. "Mycotoxins and moulded feed : effects on laying hen and contamination of Lithuanian feeds /." Uppsala : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 2001. http://epsilon.slu.se/avh/2001/91-576-5848-X.pdf.

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Davies, Heather Loree. "Digestibility, Nitrogen Balance, and Blood Metabolites in Llama and Alpaca Fed Barley and Barley Alfalfa Forages." Diss., CLICK HERE for online access, 2005. http://contentdm.lib.byu.edu/ETD/image/etd817.pdf.

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Paris, Robert L. "Potential of Hulless Winter Barley as an Improved Feed Crop." Diss., Virginia Tech, 2000. http://hdl.handle.net/10919/27228.

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This research was conducted to determine the potential of hulless winter barley (Hordeum vulgare L.) as an improved feed crop in the mid-Atlantic region. Winter barley is an excellent crop in rotation with soybean (Glycine max L.); however, production of winter barley during the past few years has decreased mainly due to low market prices, even though the mid-Atlantic region is a feed grain deficient area. Therefore, value added traits need to be developed in order for barley production to continue in the region. In the first part of this study, the objectives were to: (i) evaluate the agronomic performance and potential of six experimental hulless winter barley lines compared with two commercial hulled cultivars; (ii) determine and compare fiber, b-glucan, protein, and fat concentrations, and true metabolizable energy, corrected for nitrogen (TMEn) among these genotypes; and (iii) evaluate the genetic potential of winter hulless barley accessions from the world collection for use as parents in hulless breeding programs. Six hulless lines all derived from the cross VA75-42-45/SC793556//CI2457 were acquired from Clemson University in South Carolina. The six lines were evaluated for yield, test weight, heading date, plant height, and lodging. These hulless lines along with two hulled cultivars were planted in replicated yield plots in four states with a total of eight locations, and were managed according to standard recommended practices. Grain from each of the hulless lines and hulled checks, along with that of Trical 498 triticale (X Triticosecale) and Jackson wheat (Triticum aestivum L.) were analyzed for fiber, b-glucan, fat, protein, and ash concentration, and TMEn value. Eight hundred and seven winter or facultative habit hulless barley lines were obtained from the USDA-ARS National Small Grains Collection in Aberdeen, ID. These lines were screened for reaction type to races 8 and 30 of barley leaf rust (Puccinia hordei) and to a composite population of powdery mildew (Blumeria graminis f. sp. hordei). These accessions also were planted in observation rows to evaluate heading date, plant height, lodging, and seed threshability. The hulless lines yielded 23% less, but had 13% higher test weights than the hulled check cultivars. There was no difference between hulled and hulless barley in heading date and plant height. Hulless lines had a higher protein and lower fiber concentration than hulled barley. They also had higher b-glucan and fat concentrations than triticale or wheat. TMEn was similar between hulled and hulless barley, triticale, and wheat. Approximately 100 hulless barley lines from the world collection were selected for potential use as parents among 800 accessions tested, based on evaluations of lodging, plant height, threshability, and seed color. In the second part of the study the objectives were to determine the effects of (i) hulled and hulless barley, and (ii) b-glucanase on the performance of broilers fed different diets from 21 to 42 days of age. Diets comprised of 30% hulless or hulled barley, and a standard corn (Zea mays)/soybean meal diet with and without b-glucanase enzyme were evaluated to determine the effects of barley on gut viscosity, carcass weight, gain, percent shell, and feed efficiency in 21 to 42 day old broilers. In the first year, diets comprised of hulless lines SC890573 and SC860972, and the hulled cultivar Callao were compared to a standard check diet. In the second year SC860972 was replaced with SC880248 due to the inability to secure a sufficient amount of seed. Each year one hulled and two hulless barley diets were compared to a standard diet. Each diet was fed with and without enzyme, for a total of eight diets. Broilers 21 days of age were fed the diets until day 42 when they were processed. There was a significant decrease (P<0.05) in gut viscosity of birds fed diets with enzyme compared to birds fed diets without enzyme; however, gut viscosity did not affect weight gain or percent shell. Barley substituted at the 30% level did not have a significant effect on broiler performance, nor did the addition of enzyme. Absence of enzyme effect was attributed to bird age, since older birds are able to hydrolyze b-glucan more effectively than juveniles. The potential of hulless barley as an improved feed source for the poultry and swine industry is great for the mid-Atlantic region. Increases in grain yield are currently being realized through focused breeding efforts, and hulless lines exhibit positive nutritional components that combine favorable attributes of both wheat and hulled barley. Barley substituted at the 30% level in the diets of broilers did not cause any detrimental effects. Addition of hulless barley may potentially lead to a reduction in cost per pound of gain of broilers, and provide an alternative crop for mid-Atlantic region grain producers and feeders.
Ph. D.
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Waldron, Lucy Anne. "The nutritive value of different wheat varieties for broiler chickens." Thesis, Open University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.338547.

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Rude, Christopher Mark. "Effects of feed manufacturing on nutrient metabolism, nutrient retention, and growth performance of broiler chickens." Diss., Kansas State University, 2011. http://hdl.handle.net/2097/17152.

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Doctor of Philosophy
Department of Animal Sciences and Industry
R. Scott Beyer
Broiler chicken feed is processed. Cereal grains are ground to reduce particle size and the feed usually is pelleted. When pelleted, broiler diets are steam conditioned and forced through a die causing varying levels of starch gelatinization. Cereal grain particle size and starch gelatinization can be controlled during feed manufacturing. Earlier research has shown that starch gelatinization negatively affects growth performance of 0 to 21 d of age. An experiment was conducted to determine the effects of corn particle size and starch gelatinization on growth performance, dressing percentage, and gizzard size when fed to 22 to 42 d of age broilers. Increasing particle size from 470 to 1240 μm increased body weight gain, dressing percentage, and relative gizzard size. Starch gelatinization increased relative gizzard size. No interaction effects were detected. To expand on previous experiments, a trial was conducted to investigate the effect of starch gelatinization on broiler chick gastrointestinal pH, glucose absorption, and glucoregulation. Starch gelatinization level affected jejunum pH, with a higher pH reported at 20% starch gelatinization. Increases in starch gelatinization decreased blood glucose and increased glucagon level. Highest measured glucagon level was reported in broiler chicks fed the diet with 20% starch gelatinization level diet after 6 hours of starvation. A third experiment was conducted to determine the effect of starch gelatinization on metabolizable energy and amino acid digestibility. Increasing starch gelatinization from 0 to 100% increased true metabolizable energy and fecal output in roosters. No effect was found on apparent metabolizable energy or amino acid digestibility, with an increase in starch gelatinization from 0 to 20%. Increasing particle size from 470 to 1240 μm had a positive effect on 22 to 42 d growth performance. A starch gelatinization level of 20% or lower had no effect on metabolizable energy or amino acid digestion. Older broilers with larger gastrointestinal tracts are unaffected by 20% gelatinized starch; whereas, 20% gelatinized starch reduced blood glucose and increased glucagon levels of young broilers. Lower blood glucose and increased glucagon are indicative of lower glucose storage, and could cause reduced young broiler growth performance when fed diets with gelatinized starch.
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Jewell, Jeremy Burke. "Genetic routes to modulate rate of dry-matter disappearance of barley grain in the rumen of cattle." Thesis, Montana State University, 2007. http://etd.lib.montana.edu/etd/2007/jewell/JewellJ0507.pdf.

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Ibrir, Fathia. "The use of plant extracts as anticoccidial feed additives in broiler chickens." Thesis, University of Leeds, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.411151.

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Books on the topic "Chickens Barley as feed"

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Hermes, J. C. How to feed your laying and breeding hens. [Corvallis, Or.]: Oregon State University Extension Service, 1995.

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Aherne, Frank. Orge nue: Production et alimentation animale. Ottawa: Agriculture et agroalimentaire Canada, 1995.

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Mackie, Arthur B. World feed grain trade, 1962-85: Barley, corn, rye, oats, and other cereals. Washington, D.C: U.S. Dept. of Agriculture, Economic Research Service, 1987.

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Lantbruksuniversitet, Sveriges, ed. Ileal and total tract digestibility of barley and oats in pigs and predictions of nutritive value. Uppsala: Sveriges Lantbruksuniversitet, 1996.

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Garber, Mikel. Northwest barleys in swine rations. [Pullman, Wash.]: Cooperative Extension, College of Agriculture & Home Economics, Washington State University, 1985.

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Nutritional influence of beet pulp and chitosan in broiler chickens. Uppsala: Swedish University of Agricultural Sciences, Dept. of Food Science, 1995.

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Fabijańska, Maria Irena. Wpływ zróżnicowanego nawożenia azotowego na wartość odżywczą ziarna jęczmienia w żywieniu tuczników. Warszawa: Gama-VERS, 1992.

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Marzok, Mohamed Ahmed Tony Ahmed. Detection of genetically modified soybeans and maize in Egypt as well as comparative nutritional safety investigations of isogenic and transgenic (Bt) maize in broiler nutrition: Broiler performance, degradation and metabolic fate of maize DNA in some tissues and organs. Berlin: Mensch & Buch Verlag, 2004.

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Mohamed Ahmed Tony Ahmed Marzok. Detection of genetically modified soybeans and maize in Egypt as well as comparative nutritional safety investigations of isogenic and transgenic (Bt) maize in broiler nutrition: Broiler performance, degradation and metabolic fate of maize DNA in some tissues and organs. Berlin: Mensch & Buch Verlag, 2004.

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United States. Congress. Senate. Committee on Agriculture, Nutrition, and Forestry. Subcommittee on Domestic and Foreign Marketing and Product Promotion. Importation of subsidized grains from Sweden: Hearing before the Subcommittee on Domestic and Foreign Marketing and Product Promotion of the Committee on Agriculture, Nutrition, and Forestry, United States Senate, One Hundred Second Congress, first session, on the importation of Swedish feed barley ... July 8, 1991. Washington: U.S. G.P.O., 1992.

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Book chapters on the topic "Chickens Barley as feed"

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Abioja, M. O., and J. A. Abiona. "Impacts of Climate Change to Poultry Production in Africa: Adaptation Options for Broiler Chickens." In African Handbook of Climate Change Adaptation, 275–96. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-45106-6_111.

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AbstractGlobal climate change poses a great threat to poultry production. Greenhouse gases (GHGs) are released through both natural and anthropogenic sources into the atmosphere. Though poultry production contributes little to the release of GHGs, the subsector has been shown to be greatly affected by climate change and global warming. Poultry production as a major subsector of agriculture has provided the teeming population with a supply of needed animal protein in terms of meat and egg production all over the world. It is yet a major global employer of labor. Though it occupies a vantage position in meeting human needs, it is being threatened by climate change, especially in Africa where necessary structure to tackle the menace is nonexistent. Broiler chickens that are reared mainly for chicken meat cannot tolerate the high ambient temperature that prevails mostly in the tropical environment. Chickens are homeotherms that homeostatically regulate core body temperature within a narrow range. Elevated ambient temperature above thermal comfort zone, such as envisaged in climate change scenarios, will trigger series of neuroendocrine modulations that are detrimental to the welfare and productivity in broiler chickens. Such birds are said to be undergoing heat stress (HS). Negative effects of HS include reduced feed consumption, growth rate, feed digestion and efficiency, immunity, welfare, and survivability. Various adaptive measures that could be harnessed by broiler farmers, ranging from housing, feeding, watering, stocking, breeding for thermo-tolerant strains, thermal conditioning, use of phytochemicals, and much more, are reviewed upon in this chapter.
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Roura, E. "Chapter 8 Dietary fibre, gut sensing and modulation of feed intake in pigs and chickens." In The value of fibre, 141–56. The Netherlands: Wageningen Academic Publishers, 2019. http://dx.doi.org/10.3920/978-90-8686-893-3_8.

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Boon, J. J. "An Introduction to Pyrolysis Mass Spectrometry of Lingnocellulosic Material: Case Studies on Barley Straw, Corn Stem and Agropyron." In Physico-Chemical Characterisation of Plant Residues for Industrial and Feed Use, 25–49. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-1131-4_4.

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Baik, Byung-Kee. "Processing of Barley Grain for Food and Feed." In Barley, 233–68. Elsevier, 2014. http://dx.doi.org/10.1016/b978-1-891127-79-3.50010-x.

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"Barley (Hordeum vulgare)." In Novel Food and Feed Safety, 155–82. OECD, 2015. http://dx.doi.org/10.1787/9789264180147-11-en.

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Jin, Li-Zhi, Yueming Dersjant-Li, and Ilias Giannenas. "Application of aromatic plants and their extracts in diets of broiler chickens." In Feed Additives, 159–85. Elsevier, 2020. http://dx.doi.org/10.1016/b978-0-12-814700-9.00010-8.

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Stark, Charles. "Processing techniques to optimize digestibility and nutritional value of animal feed." In Developing animal feed products, 59–78. Burleigh Dodds Science Publishing, 2021. http://dx.doi.org/10.19103/as.2020.0083.09.

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This chapter reviews the effects of feed manufacturing processes on the nutritional value of feed. It discusses the effects of particle size reduction and pelleting on feed digestibility and the overall performance of pigs/swine and broiler chickens.
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Poulsen, David M. E. "Optimising the use of barley as an animal feed." In Achieving sustainable cultivation of barley, 427–66. Burleigh Dodds Science Publishing, 2020. http://dx.doi.org/10.19103/as.2019.0060.22.

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Tricase, Caterina, Vera Amicarelli, Emilia Lamonaca, and Roberto Leonardo Rana. "Economic Analysis of the Barley Market and Related Uses." In Grasses as Food and Feed. IntechOpen, 2018. http://dx.doi.org/10.5772/intechopen.78967.

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Becker, Martin, and Goetz Hensel. "Genome editing of barley." In Genome editing for precision crop breeding, 325–40. Burleigh Dodds Science Publishing, 2021. http://dx.doi.org/10.19103/as.2020.0082.18.

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Although barley is of great importance for the brewing and animal feed industries and is regarded as a model for small grain cereals, only a few results on targeted gene modification using CRISPR/Cas endonuclease technology have been published to date. In this chapter, the frontiers and achievements of the currently used techniques in barley genome modification will be shown and discussed.
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Conference papers on the topic "Chickens Barley as feed"

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Kosolapov, Vladimir, Halyaf Ishmuratov, Valentina Kosolapova, and Zinaida Zverkova. "EFFECT OF THE USE OF FEED FROM BARLEY AND PEAS ON MEAT BULLS PRODUCTIVITY." In Multifunctional adaptive feed production. ru: Federal Williams Research Center of Forage Production and Agroecology, 2020. http://dx.doi.org/10.33814/mak-2020-22-70-104-108.

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Reconnaissance experiments were conducted to evaluate the productive effect of diets for young cattle. The diets consist of silage prepared from peas and barley in the ratio of 50: 50 and 25: 75, as well as from crushed grain these crops. Mixed crop cultivation is recommended for use in feed production. The average daily gain in live weight of gobies grown on such diets is 927–996 g, slaughter yield is up to 58.8%, and the protein content in the longest muscle of the back is 21.93–23.63%.
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Kosolapov, Vladimir, Halyaf Ishmuratov, Valentina Kosolapova, and Zinaida Zverkova. "ECONOMIC EFFICIENCY OF THE USE OF YOUNG CATTLE PROTEIN FEED FROM BARLEY-PEA MIXTURES." In Multifunctional adaptive feed production. ru: Federal Williams Research Center of Forage Production and Agroecology, 2020. http://dx.doi.org/10.33814/mak-2020-22-70-109-114.

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An assessment is made of the protein nutritional value of silage and crushed grain prepared from a mixture of barley and peas, as well as an assessment of the quality of protein feed from these mixtures. It has been determined that the greatest economic effect can be obtained by using a biological preparation for silage and crushed grain treatment to animals rations.
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Kulish, Sviatlana, Anastasiya Prusakova, Leanida Sapunova, and Iryna Tamkovich. "Effect of feed additive polyact on immune status of broiler chickens." In National Scientific Symposium With International Participation: Modern Biotechnologies – Solutions to the Challenges of the Contemporary World. Institute of Microbiology and Biotechnology, Republic of Moldova, 2021. http://dx.doi.org/10.52757/imb21.083.

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Shatskikh, Elena, Alyona Nufer, Olga Neverova, and Danis Galiev. "Digestibility and nutrient absorption in broiler chickens when replacing feed antibiotics in mixed feed with safe growth promoters." In Proceedings of the International Scientific and Practical Conference “Digital agriculture - development strategy” (ISPC 2019). Paris, France: Atlantis Press, 2019. http://dx.doi.org/10.2991/ispc-19.2019.120.

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Kosolapov, Vladimir, Zinaida Zverkova, Halyaf Ishmuratov, Bella Osipyan, and Larisa Korovina. "Seeds of spring brassica campestris in the diets of chickens-broilers." In Multifunctional adaptive fodder production. ru: Federal Williams Research Center of Forage Production and Agroecology, 2021. http://dx.doi.org/10.33814/mak-2021-25-73-153-157.

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In order to save soybean meal, sunflower oil and reduce the cost of rations, new sources of raw materials can be used. In modern conditions, attention is drawn to the brassica rapa campestris, the seeds of which can be used as a fat and protein supplement. Experiments were carried out to determine the optimal rate for the introduction of seeds of spring rape variety Nadezhda into compound feed for growing broiler chickens. It has been established that this variety belongs to canola varieties and can be included up to 7% (by weight) in the composition of mixed fodders, does not have a negative effect on the state of the body and the growth rate of broiler chickens. The introduction of seeds of spring rape to 7% in the composition of feed for broiler chickens reduces the use of soybean meal to 4.7% and sunflower oil to 2.3% (relative). The efficiency of conversion to products by group was 61.93 % in the control group and 62.18% to 63.62% in the experimental group, respectively.
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Dedushev, I. A., and M. A. Boldyrev. "Еstimation of economically useful characteristics and properties of spring barley varieties." In Растениеводство и луговодство. Тимирязевская сельскохозяйственная академия, 2020. http://dx.doi.org/10.26897/978-5-9675-1762-4-2020-110.

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the quality of spring barley varieties in various directions is evaluated by various methods. Analysis of 9 varieties in the waterlogged year 2020 in the conditions of the Moscow region allowed us to evaluate the best varieties for feed and brewing qualities. For the evaluation of feed barley, the main value is the increased content of protein and essential amino acids, including lysine. Maximum values of protein (13,06%) and lysine (0,44%) were diagnosed as grade Accounting. Brewing requires varieties with a low protein content of up to (12%) and high extractivity (80%). The Reliable variety had the best malt indicators of protein content (10.78%) and extractivity (82.5%).
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"Impact of Aflatoxins Contaminating Feed and Yeast Cell Wall Supplementation on Immune System in Broiler Chickens." In International Academy of Engineers. International Academy of Engineers, 2015. http://dx.doi.org/10.15242/iae.iae0215416.

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Oladele, OA, OO Esan, HO Nottidge, and IL Akpan. "Effects of garlic (Allium sativum L.) feed additive on experimentally-induced hepatotoxicity and nephrotoxicity in commercial chickens." In 67th International Congress and Annual Meeting of the Society for Medicinal Plant and Natural Product Research (GA) in cooperation with the French Society of Pharmacognosy AFERP. © Georg Thieme Verlag KG, 2019. http://dx.doi.org/10.1055/s-0039-3399635.

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Mukhamediarova, Zulfiya Petrovna, Anna Sergeevna Mizhevikina, and Irina Aleksandrovna Lykasova. "Changes in Morphological and Biochemical Parameters of Blood of Broiler Chickens Caused by Use of Feed Additives." In International scientific and practical conference "AgroSMART - Smart solutions for agriculture" (AgroSMART 2018). Paris, France: Atlantis Press, 2018. http://dx.doi.org/10.2991/agrosmart-18.2018.162.

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Yanchenko, V. V., and E. A. Kapitonova. "RESULTS OF ORGANOLEPTIC AND TASTING EVALUATION OF POULTRY MEAT WHEN INTRODUCING THE REGULATORY COMPLEX "BYPASS" INTO THE DIET." In "International Scientific and Practical Conference" THEORY AND PRACTICE OF VETERINARY PHARMACY, ECOLOGY AND TOXICOLOGY IN AIC ", dedicated to the centenary of the Department of Pharmacology and Toxicology, SPbSUVM. FSBEI HE St. Petersburg SUVM, 2021. http://dx.doi.org/10.52419/3006-2021-2-253-256.

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Stimulation of the body of poultry by the regulatory complex "Bypass" allowed us to obtain a high-quality product. The removal of synthetic amino acids from the feed helps to improve the taste of the meat of broiler chickens of the «Ross-308» cross.
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