养殖与饲料2024年第3期中国西门塔尔牛(草原类型群)胚胎移植技术的应用李那何芽1,季守财1,刘志永1,潘小峰1,包永光1*,赵立臣1,李嘉伟1,花拉21.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。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TheapplicationofembryotransplantationtechnologyforChineseTheapplicationofembryotransplantationtechnologyforChineseSimmentalcattleSimmentalcattle(grassland-typeherdgrassland-typeherd)LINaheya1,JIShoucai1,LIUZhiyong1,PANXiaofeng1,BAOYongguang1*,ZHAOLichen1,LIJiawei1,HUALa21.LivestockBreedingCenterofGaolintuninTongliaoCity,Tongliao028000,China;2.AnimalDiseasePreventionandControlCenterofHelingerCounty,InnerMongolia,Helinger010010,ChinaAbstractAbstract[Objectives]ThereproductivepotentialofelitefemaleChineseSimmentalcattle(grassland-typeherd)wasfullyutilizedwiththeapplicationofembryotransplantationtechnologytoprovidetechnicalreferencesforitsapplicationandpromotioninreproductiveproduction.[Methods]68youngChineseSimmentalcattle(grassland-typeherd)weresubjectedtobatchsynchronousestrusandembryotransplantationusingtheCIDR+PG+ADEmethod.Theestrusrateandconceptionrateweremeasured.Thebodyconditionoftherecipientcowswasscoredaccordingtothetechnicalregulations收稿日期:2023-11-03基金项目:科尔沁肉牛优势特色产业...