不同来源的冷冻胚胎对移植受体奶牛受胎率影响及综合成本分析

打开文本图片集

Effect of Frozen Embryos from Different Sources on the Pregnancy Rate of Recipient Dairy Cows and Comprehensive Cost Analysis

'， 2， WANG Yongying2， YUAN Kaishuo3， WU Hebao3， WANG Hongying2 （1.，Tanjin319，hina；2. ，；3. dry Group Company Limited，Tianjin3O0404，）

Abstract：Inodertostudytheeectsofdiferentsourcesanddiferenttypesofembryosonthetiretransplantationateofrceptor beef embryo，andcomparethecomprehensivecostofembryotransplantation.FromApriltoJune2O24，90dairyembryosweretransplanted in Tianjin，recipient cattle with an average pregnancy rate of 65.55% . The results showed that the pregnancy rates different typesandsourcesofembryosvariedsignificantly.ThepregnancyrateofroutineembryoinvivoproducedconventionalAandBgrade embryos （66.67 % ）waslower than of imported A grade conventional embryos（76.67 % ），buthigher than thatofinvivo produced Aand Bgradesex ：- sortedembryos（53.54 % ）.Thedifferencesbetween groups were significant（ <0.05）.The comprehensive costs of different sourcesand typesofembryoswerecompared.Thelowestcomprehensivecostofconventionalinvivoembryos（73yuanperembryo）， which waslowerthan thatofinvivoproducedsex-sortedembryosandimportedconventional.Thediferencesbetweengroupswere significant （ P <0.05），Judgingfromtheaveragecostanalysisof thaveragecostofsurrogacy，theaveragecostofconventionalembryos （1 099 yuanperembryo）invivoembryowaslwerthantheself-producedembryoandimportedconventionalembryos，andthecostdifference was significant（ P

胚胎移植技术能充分挖掘优良奶牛的繁殖潜力，缩短世代间隔，快速扩大良种群体数量，提高群体生产性能，对加快奶牛遗传改良进程，提高奶牛养殖经济效益，实现畜牧业现代化具有重要的意义。（剩余6160字）