›› 1994, Vol. 14 ›› Issue (2): 75-78.

• 论文 • 上一篇    下一篇

B:CBWR兔主要生产性能

  

  1. 白求恩医科大学
  • 收稿日期:1993-11-01 出版日期:1994-04-25 发布日期:1994-04-25

The Reproductive Performance of B: CBWR Rabbits

  1. Norman Bethune University of Medical Science, Changchun, 130021
  • Received:1993-11-01 Online:1994-04-25 Published:1994-04-25

摘要: 对B:CBWR兔的有关资料进行统计分析,结果表明:其外貌特征和主要生产性能各代间无明显差异,遗传性较稳定。其主要生产指标为:一次交配受孕率81.56%,妊妊期31.19±0.13d,窝均产仔数8.00±0.06只,21日龄仔兔窝重1765.17±27.07g,45日龄每窝离乳数5.38±O.09只,45日龄仔兔离乳体重1263.29±13.27g,离乳后5周内日增重31.03±7.14g;6月龄后备公母种兔体重分别为3930.00±336.53g和4012.50±325.00g,体躯指数66.07±3.48。

关键词: 大耳白兔, 外貌特征, 生产性能

Abstract: After 7 years' selective breeding and large scale production, the physiognomy features and reproductive performance of B: CBWR rabbit were gradually stablized. The average pregancy rate of one time mating, gestation period, litter size were 81.89%, 31.19±0.13 days, 8.00±0.06 respectively. The average litter weight at 21 day age is 1765.17±27.07g; At 45 day age, the average weanling litter size and weight are 5.38±0.09,1263.29±13.27 g respectively. The average daily gain is 31.03±7.14g within 5 weeks after weaning. The average weight of replacement rab-bits at 60 days is 3930.00 士336.53 g for the male, 4012. 50±325.00 g for the fe-male, the average trunk index is 66.07±3.48.

Key words: Rabbit, Physiognomy feature, Reproductive performance