不同來(lái)源的冷凍胚胎對(duì)移植受體奶牛受胎率影響及綜合成本分析

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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

胚胎移植技術(shù)能充分挖掘優(yōu)良奶牛的繁殖潛力，縮短世代間隔，快速擴(kuò)大良種群體數(shù)量，提高群體生產(chǎn)性能，對(duì)加快奶牛遺傳改良進(jìn)程，提高奶牛養(yǎng)殖經(jīng)濟(jì)效益，實(shí)現(xiàn)畜牧業(yè)現(xiàn)代化具有重要的意義。（剩余6160字）