不同蛋白质水平对獭兔繁殖性能的影响

选择年龄、体重基本一致，生长发育正常的健康獭兔种母兔24只，随机分成对照组以及A、B、c3个试验组，每组6只，对照组饲喂养殖场现有日粮（蛋白水平为15％），试验组分别饲喂蛋白质水平为16％、18％、20％的日粮，研究不同蛋白质水平对獭兔繁殖性能的影响。结果表明。不同营养水平对窝产仔数、初生窝重没有明显影响，各组差异不显著（P〉0．05），但对泌乳力、断奶窝重、断奶个体重等有明显影响。B组的泌乳力、断奶窝重与对照组相比差异显著（P〈0．05），分别比对照组提高47．6％和1573．42g；断奶个体重，A组和B组均显著高于对照组（P〈0．05），比对照组分别高30．9％和47．4％，B组显著高于A组（P〈0．05），比A组高12．6％，C组与对照组差异不显著（P〉0．05）；各组断奶成活数、成活率差异不显著（P〉0．05）。

The Effect of Different Protein Levels on the Reproductive Performance of Rex Rabbit

24 healthy doe rex rabbits whose age, body weight were basically the same, were randomly divided into control group and A,B,C treatment groups. Each group was fed with the diet of protein level which were 15%, 16%, 18% and 20% respectively. The result showed that： diffent protein levels had no effect on litter size and litter weight at birth, and the groups were no significant difference （P〉0.05）, but significant effect on lactation and weaned litter weight （P〈0.05）. Compared with the control group, lactation and weaned litter weight in group B increased by 47.6% and 1573.42g respectively, and there were significant different （P〈 0.05）. There were no significant difference in weaned litter and the rate of weaning survival in each group （P〉 0.05）. In weaning weight, group A and B were significantly higher than the control group （P〈0.05）, compared with the control group increased by 30.9% and 47.4% respectively. Group B was significantly higher than group A （P〈0.05）, increased by 12.6%. Group C and control group had no significant difference （P〉0.05）.