两组同期发情方案及定时输精技术提高牦牛受胎率效果观察
Observation on the Effect of Two Synchronized Estrus Schemes and Timed Insemination Techniques On Improving the Conception Rate of Yaks
王文飙 1马登录 1马桂琳 1刘汉丽 1李鹏霞 1徐海 1郭淑珍 1包永清 1拉毛杰布 2王杰峰 2马毅 3赵明礼3
作者信息
- 1. 甘肃省甘南州畜牧工作站 甘肃 合作 747000
- 2. 甘南州夏河县畜牧工作站
- 3. 天津市畜牧农业科学院兽医研究所
- 折叠
摘要
为进一步研究牦牛发情不集中、受胎率低的问题,利用二组同期发情方案使牦牛在繁殖季节集中表现发情后定时输精,准确把握输精时机,提高牦牛受胎率.本试验选择在同一草场常年放牧、健康、膘情均达中等以上,年龄3～10 岁母牦牛进行同期处理并严格控制处理和配种的时间,观察发情、受胎效果.结果显示,通过二组同期发情方案对牦牛同期发情处理,发情率、受胎率分别为 67%、76%、56%、64%,差异显著(P＜0.05),同期组2 不论同期发情率还是受胎率明显高于同期组1,应加以示范推广.
Abstract
In order to further study the issues of inconsistent estrus and low conception rate in yaks,a two-group synchronous estrus scheme was used to concentrate the performance of yaks during the reproductive season and perform timed insemination after estrus,accurately grasping the timing of insemination and improving the con-ception rate of yaks.This experiment selected female yaks aged 3-10 years old who were grazed year-round,healthy,and had moderate or above body fat on the same grassland for simultaneous treatment,and strictly con-trolled the time of treatment and mating to observe the effects of estrus and conception.The results showed that the estrus and conception rates of yaks were 67%,76%,56%,and 64%,respectively,with significant differences between the two sets of synchronized estrus schemes(P＜0.05).Group 2 had significantly higher estrus and con-ception rates than Group 1 which should be demonstrated and extended.
关键词
牦牛/同期发情/定时输精/受胎率/效果Key words
synchronized estrus in yak/timed insemination/conception rate/effect引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据