日粮粗蛋白水平对肉用鹧鸪增重的影响

肉用鹧鸪分 3阶段饲养 ,每阶段设粗蛋白、维生素二因子各 3个水平进行 3× 3交叉分组试验 ,测定其各阶段的体重。结果表明 ,第 1阶段是中等蛋白水平 (2 3% )的 4 ,5 ,6组比低蛋白水平 (2 0 % )的 7,8,9组和高蛋白水平 (2 6 % )的 1,2 ,3组稍高 ,但各组间差异不显著 ;第 2阶段是高蛋白水平 (2 2 % )的 1,2 ,3组和中等蛋白水平 (19% )的 4 ,5 ,6组的增重显著地好于低蛋白水平 (16 % )的 7,8,9组 ,且 1组和 7组之间、3组 6组和 9组之间差异极显著 ;第 3阶段是低蛋白水平 (16 % )的 7,8,9组的增重好于高蛋白水平 (2 0 % )的 1,2 ,3组和中等蛋白水平 (18% )的 4 ,5 ,6组 ,后期低蛋白水平组出现一定的补偿生长 ,但 90日龄体重各组间差异不显著。

Effects of Crude Protein Levels of the Ration on Gain for Partridges

Partridges were fed at 3 stages. For each stage, a 3×3 across grouping experiment with 2 factors of crude protein and vitamins was conducted. The results showed that at the first stage, gain of the group of 4, 5,6 with middle level of protein(23%) was slightly lower than that of group of 7,8,9 with low level of protein(20%) and group of 1,2,3 with high level of protein(26%), but differences were not significant. At the second stage, gain of the high (22%) and middle level(19%)groups was significantly higher than that of the low level(16%) group. In addition, differences were significant between group 1 and 7 and among group 3,6,9. At the third stage, gain of the low level(16%) group was higher than that of high(20%) and middle(18%)groups. In later period, the compensation gain was found in the low level group, but differences were not significant at 90-day age.