中国西门塔尔牛(草原类型群)胚胎移植技术的应用  

The application of embryo transplantation technology for Chinese Simmental cattle(grassland-type herd)

作　　者：李那何芽 季守财 刘志永 潘小峰 包永光 赵立臣 李嘉伟 花拉 LI Naheya;JI Shoucai;LIU Zhiyong;PAN Xiaofeng;BAO Yongguang;ZHAO Lichen;LI Jiawei;HUA La(Livestock Breeding Center of Gaolintun in Tongliao City,Tongliao 028000,China;Animal Disease Prevention and Control Center of Helinger County,Inner Mongolia,Helinger 010010,China)

机构地区：[1]高林屯种畜繁育中心,内蒙古通辽028000 [2]内蒙古和林格尔县动物疫病预防控制中心,内蒙古和林格尔010010

出　　处：《养殖与饲料》2024年第3期12-16,共5页Animals Breeding and Feed

基　　金：科尔沁肉牛优势特色产业集群2022年续建项目。

摘　　要：[目的]通过胚胎移植技术充分发挥中国西门塔尔牛(草原类型群)优秀母畜的繁殖潜力,为其在繁殖生产中的应用与推广提供技术参考。[方法]对68头青年中国西门塔尔牛(草原类型群)采用CIDR+PG+ADE法进行分批同期发情和胚胎移植,测定发情率、受胎率,根据肉用母牛体况评分技术规程对受体牛的体况进行评分。[结果]中国西门塔尔牛(草原类型)的同期发情率达79.4%,胚胎移植受胎率达40.7%;4月青年母牛发情率相对较高(84.2%),7月受胎率相对较高(45.5%);20~24月龄膘情中等的青年母牛的移植受胎率(60%)显著高于16~19月龄或过于膘大母牛的受胎率;体况评分4~6分的青年母牛受胎率(46.2%)高于体况评分1~3分和7~9分的青年母牛。1头牛进行胚胎移植的成本为1.34万元。[结论]本地区引种胚胎移植的方法从经济上分析是可行的。[Objectives]The reproductive potential of elite female Chinese Simmental cattle(grassland-type herd)was fully utilized with the application of embryo transplantation technology to provide technical references for its application and promotion in reproductive production.[Methods]68 young Chinese Simmental cattle(grassland-type herd)were subjected to batch synchronous estrus and embryo transplantation using the CIDR+PG+ADE method.The estrus rate and conception rate were measured.The body condition of the recipient cows was scored according to the technical regulations for evaluating the body condition of beef cows.[Results]The synchronous estrus rate of Chinese Sim‐mental cattle(grassland-type herd)was 79.4%,and the conception rate of embryo transplantation was 40.7%.The estrus rate of young cows in April was relatively high(84.2%),and the conception rate in July was relatively high(45.5%).The conception rate of embryo transplantation(60%)of young cows aged 20–24 months with moderate fatness was significantly higher than that of cows aged 16–19 months or big fatness.The conception rate(46.2%)of young cows with a body condition score of 4–6 was higher than that of young cows with a body condition score of 1–3 and 7–9.The cost of embryo transplantation for one cow is 13400 yuan.[Conclusions]Introducing embryo transplantation in this area is economically feasible.

关 键 词：中国西门塔尔牛(草原类型群) 胚胎移植 受胎率 发情率 体况评分 

分 类 号：S823.3[农业科学—畜牧学]