采用犊牛短期断乳方式提高牦母牛繁殖性能的试验  

Experiment of Improving Reproductive Performance of Female Yaks by Short-time Weaning of Calves

作　　者：王伟[1] 赵寿保 

机构地区：[1]青海省大通种牛场,大通810102

出　　处：《青海畜牧兽医杂志》2008年第1期1-2,共2页Chinese Qinghai Journal of Animal and Veterinary Sciences

摘　　要：对90头带犊大通母牦牛进行了犊牛短期断乳试验。试验组母牦牛在产犊后3月龄时,实行为期10d的短期断乳,断乳后母牦牛有81头发情,发情率90%,第二年产犊78头,繁殖率86.67%。对照组为带犊,但不断乳的母牦牛,试验期共发情2头,发情率2.22%,产犊2头,繁殖率2.22%。试验组母牦牛的发情率和繁殖率比对照组分别提高了87.78%和84.45%(P<0.01)90 Datong femal yaks with calves were used to conduct an experiment of short-time weaning of calves. The female yaks in the experiment group were conducted wean from calves at three months after calving by short-time weaning（ 10 days） .81 Female yaks appered estrus after weaning and the estrus rate was 90% ,and calved 78 calves in next year and the reproductive rate was 86.67%. Two female yaks in the control group which were not conducted wean from calves appeared estrus in exppriment period and the estrus rate was 2.22 %, and calved 2 calves in next year and the reproductive rate was 2.22%. The estrus rate and the reproductive rate of female yaks in the experiment grop increased 87.78 % and 84.45 % than those in the control group （p 〈 0.01 ）, respectively.

关 键 词：大通牦牛 犊牛 短期断奶 繁殖性能 

分 类 号：S823[农业科学—畜牧学]