Application of the law of diminishing returns to estimate maintenance requirement for amino acids and their efficiency of utilization for accretion in young chicks
نویسنده
چکیده
H. DARMANI KUHI , E. KEBREAB *, S. LOPEZ 3 AND J. FRANCE 4 1Animal Sciences Group, Faculty of Agriculture, University of Ilam, Ilam 69315/516, Iran 2National Centre for Livestock and Environment, Department of Animal Science, University of Manitoba, Winnipeg, MB, R3T 2N2, Canada Departamento de Producción Animal, Universidad de León, E-24007 León, Spain 4Centre for Nutrition Modelling, Department of Animal and Poultry Science, University of Guelph, Guelph, ON, N1G 2W1, Canada
منابع مشابه
Maintenance threonine requirement and efficiency of its use for accretion of whole-body threonine and protein in young chicks.
Broiler chicks were fed on chemically-defined crystalline amino acid diets containing graded levels of L-threonine (Thr) during the period 10-20 d post-hatching. Doses of Thr represented 5, 10, 15, 40, 55, 70 and 95% of its ideal level for maximal weight gain and feed efficiency. Other amino acids were maintained at minimized excess levels that were 15% (of ideal) above the various doses of Thr...
متن کاملMaintenance threonine requirement and efficiency of its use for accretion of whole-body threonine and protein in young chicks
Broiler chicks were fed on chemically-defined crystalline amino acid diets containing graded levels of L-threonine (Thr) during the period 10-20 d post-hatching. Doses of Thr represented 5,10,15,40, 55, 70 and 95 % of its ideal level for maximal weight gain and feed efficiency. Other amino acids were maintained at minimized excess levels that were 15 % (of ideal) above the various doses of Thr....
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