不同菜籽饼配比对伊莎蛋鸡公雏生长发育和营养物质利用的影响

用１３８只伊莎蛋鸡１日龄公雏，按３×２因子设计研究了饲粮中３个菜籽饼配比（８％，１２％，１６％）与两个添加剂组合（富碘，维生素Ｋ３和维生素Ｂ１２加富）的效果。结果表明，全部试鸡均未出现中毒症状；菜籽饼配比８％和１２％组的期末活重显著高于１６％组（Ｐ＜０．０１），平均日增重和日均耗料量也有相同的趋势；两个添加剂组合间期末活重与日均增重无显著差异（Ｐ＞０．０５）；试验处理对主要营养物质的利用无显著影响（Ｐ＞０．０５）

Effects of Different Propotion Ratio of RSM in Diets on Growth and Nutririent Utilization of ISA Male Chicks

A toatal of 138 one d old ISA brown male chicks were used to study the effects of three levels of RSM (rape seed meal, 8 %, 12 % and 16 % ) and two combinations of additive (one rich in iodine, the other in vitamin K 3 and B 12 ) on growth and utilization of organic matter and protein according to 3×2 factorial designing. The results showed that no symptom of poisoning was found in all the birds tested. By the end of the trial, live weights from groups fed with diets containing 8 % and 12 % RSM were higher significantly than those from groups obtained the diets at 16 % RSM ( P <0.01). As for the mean daily liveweight gains and the daily feeds consume were also with the similar tendency. No significant difference existed in liveweights and mean daily liveweight gains between the two additive combination groups ( P >0.05). The experimental treatments had no much effects on utilization of the two nutrients ( P >0.05).