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Effect of threonine supplementation on japanese quail fed various levels of protein and sulfur amino acids: [electronic resouce].

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Abdel-Mageed,M.A.A

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Language: English Summary language: Arabic Description: p.805-819Other title:

تاثير الثريونين على السمان اليابانى المغذى على مستويات مختلفة من البروتين والاحماض اللمينية الكبريتية [Added title page title]

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Egyptian poultry science journal, 2009 v. 29 (III) [electronic resouce].

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In: Egyptian Poultry Science Journal 2009.v.29(III)Summary: This study was conducted using 378 six-week old Japanese quail birds which were equally divided into 7 groups of 3 replicates each. The experiment was done to explore the extent to which dietary crude protein (CP) level can be reduced in diets through sulfUr amino acids (SAA) and threonine (Thr) supplementation while maintaining adequate performance. Seven experimental isocaloric (2900 kcal ME/kg diet) layer diets were formulated. One positive control diet (A) was formulated to cover or exceed NRC (1994) recommendations ofCP, SAA and Thr. Two negative control diets (B & C)were formulated to contain lower CP (18 and 16% CP, respectively) than NRC (1994) recommended level but SAA and Thr were held at a constant ratio to CPfor obtaining the same ratio in the two diets.

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This study was conducted using 378 six-week old Japanese quail birds which were equally divided into 7 groups of 3 replicates each. The experiment was done to explore the extent to which dietary crude protein (CP) level can be reduced in diets through sulfUr amino acids (SAA) and threonine (Thr) supplementation while maintaining adequate performance. Seven experimental isocaloric (2900 kcal ME/kg diet) layer diets were formulated. One positive control diet (A) was formulated to cover or exceed NRC (1994) recommendations ofCP, SAA and Thr. Two negative control diets (B & C)were formulated to contain lower CP (18 and 16% CP, respectively) than NRC (1994) recommended level but SAA and Thr were held at a constant ratio to CPfor obtaining the same ratio in the two diets.

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