Measurements of enzyme response with hulless barley-based diets full-fed to Leghorn and broiler chicks or restricted-fed broiler chicks
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چکیده
منابع مشابه
Phosphorus characterization in feces from broiler chicks fed low-phytate barley diets
The inclusion of low phytate grains in poultry diets can reduce the phosphorus (P) content of poultry feces, but their influence on fecal P composition is not well established. To assess this, 100 male broiler chicks (21 days old) were fed dietary treatments based on either a wild-type barley or one of three low phytate mutant barleys with 59, 62 and 99% reductions in phytate P, compared with t...
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B. Nyamambi, L.R. Ndlovu, Y.S. Naik and N.D. Kock 1 Departments of Animal Science, Biochemistry and Veterinary Paraclinical Studies, University of Zimbabwe, Box MP 167, Mount Pleasant, Harare, Zimbabwe 2 Department of Environmental Science and Health, National University of Science and Technology, Bulawayo, Zimbabwe 3 Department of Pathology-Comparative Medicine, Medical Centre Boulevard, Schoo...
متن کاملPerformance Characteristics and Nutritional Comparison of Broiler Chickens Fed with Barley and Triticale Based Diets
This study was performed with growing chicken (14 to 56 d of age) to evaluate the effects of feeding them a barley or triticale-based diet. The treatments were corn diet (1) as a control, hulless barley diet with (5) or without (2) enzyme, triticale diet with (6) or without (3) enzyme and hulled barley diet with (7) or without (4) a commercial β-glucanase enzyme. In a digestibility trial, 21 ma...
متن کاملThe zinc requirements of broiler chicks and turkey poults fed on purified diets.
Chicks and turkey poults were fed for 3 weeks on low-zinc diets, prepared from purified ingredients, supplemented with zinc oxide at graded levels. Birds of both species given the unsupplemented basal diets grew poorly, with high mortality rates. All had severe hyperkeratosis but bone development was normal. Only when birds received diets with low concentrations of added Zn were leg abnormaliti...
متن کاملBody Weight and Food Intake of Broiler and Leghorn Chicks
Age of market weight of broilers has been continuously reduced by approximately one day per generation during the past 40 50 years due to an average increase of 50 g/year of body weight at 42 days of age (Gyles, 1989). Although non-genetic factors such as improved feeding and management contributed to this growth rate increase, genotypic selection for growth seems to be the major cause (Chamber...
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ژورنال
عنوان ژورنال: Canadian Journal of Animal Science
سال: 2001
ISSN: 0008-3984,1918-1825
DOI: 10.4141/a01-008