摘要
[目的]为产后采取合理的管理措施和提高其生产和繁殖性能,从而提高奶牛养殖的经济效益提供科学依据.[方法]收集了江苏省某大型奶牛场2013 ～2014年产犊记录,分析了不同产犊季节、月份及胎次对奶牛胎衣不下发生率的影响.[结果]该牛场胎衣不下总发生率为11.25％.不同胎次间胎衣不下发生率无显著差异.产犊季节和产犊月份对胎衣不下发生率有显著影响.夏季产犊的奶牛胎衣不下发生率最高（15.78％）,秋季其次（11.81％）,春季最低（3.93％）;7月产犊时奶牛胎衣不下发生率最高（18.75％）,其次为11月和8月,而5月最低.[结论]合理调整配种和产犊季节能在一定降低胎衣不下的发生率.
[ Objective] The research aimed to provide scientific basis for enhancing the economic benefits of dairy cows by taking reasonable postpartum measures and improving their production performance and reproduction performances. [ Method ] The reproduction records in a large-scale dairy farm of Jiangxi Province during 2013 -2014 were collected. The effects of different calving season and month, parity on the incidence of the retention of fetal membrane of dairy cows were studied. [ Result] The overall incidence of the retention of fetal membrane of dairy cows in this dairy farm was 11.25%. The incidence of the retention of fetal membrane had no significant difference among different parity of dairy cows. The calving season and month had significant effects on the incidence of retention of fetal membrane. From the calving season, the incidence of the retention of fetal membrane in summer was the highest （ 15.78% ）, followed by that in autumn,and that in spring was the lowest （3.93%）. From the calving month,the incidence of the retention of fetal membrane in July was the highest（ 18.75% ）, followed by that in November and August, and that in May was the lowest. [ Conclusion] The incidence of the retention of fetal membrane could be reduced by regulating the hybridizing and calving season reasonably.
出处
《安徽农业科学》
CAS
2014年第30期10581-10582,10585,共3页
Journal of Anhui Agricultural Sciences
基金
江苏省苏北专项(BN2013038)
徐州市科技计划资助项目
关键词
奶牛
胎衣不下
原因
繁殖性能
Dairy cow
Retention of fetal membrane
Cause
Reproductive performance
