饲粮赖氨酸和蛋氨酸水平对雉鸡蛋白质沉积和羽毛生长的影响

本试验采用二因素二次回归正交设计 ,探讨饲粮赖氨酸 (Lys)和蛋氨酸 (Met)水平对雉鸡蛋白质沉积和羽毛生长的影响。结果表明 :饲粮Lys和Met水平均极显著影响 8周龄雉鸡胴体、羽毛、总体蛋白沉积量及饲粮蛋白质净利用率 ,呈二次曲线变化 ;0～ 8周最大羽毛蛋白质沉积需要的适宜Lys( 1 2 84% )和Met( 0 5 11% )水平高于最大胴体蛋白沉积 ( 1 178%和 0 411% )和蛋白质净利用率 ( 1 175 %和 0 432 % )需要的适宜Lys和Met水平 ;0～ 8周1 2 6 0 %Lys和 0 6 34 %Met ,9～ 16周 0 75 1%Lys和 0 410 %Met时 ,羽毛生长最佳 ,尤其是鞍部和尾部羽毛

Studies of Influence of Dietary Lysine and Methionine Levels on Protein Deposition and Feather Growth of Pheasants

A trial with 2 factors quadratic regression right cross design were conducted to study the influence of dietary lysine (Lys) and methionine (Met) levels on protein deposition of 1-day to 8 weeks old young ring necked pheasants and feather growth of 8 th and 16 th weeks ages. The results show as follows: Both Lys and Met could influence significantly the protein deposition of carcass, feather and body of pheasants in quadratic. The optimal dietary Lys (1 284%) and Met (0 511%) lever with the largest protein deposition of feather is larger that with the largest protein deposition of carcass and dietary protein net utilization ratio. The feather growth is the best with 1 260% Lys and 0 634% Met from 0 to 8 weeks or with 0 751% Lys and 0 410% Met from 9 to 16 weeks.