黑龙江动物繁殖2026，Vol.34Issue(1)：63-66,4.DOI:10.19848/j.cnki.ISSN1005-2739.2026.02.0011
肉牛双胎生产技术实践
Practice of twin technology in beef cattle production
摘要
Abstract
To investigate the practical application of twin technology in large-scale beef cattle farming,a total of 110 Simmental recipient cows were treated with estrus synchronization using a protocol combining a controlled internal drug release(CIDR)device,prostaglandin(PG),and vitamin AD for embryo transfer in two ranches of A and B.The study focused on evaluating the effects of corpus luteum(CL)quality and embryo transfer site(ipsilateral vs.contralateral to the CL)on the rate of twin pregnancies.The results showed that the estrus rate was 90%,the rate of recipients with a qualified CL was 69%,the overall pregnancy rate was 74%,and the twin pregnancy rate reached 78%.Recipient cows with embryos transferred to the uterine horn contralateral to the CL achieved twin pregnancy rates(ranch A:88%,ranch B:86%)significantly higher than those receiving ipsilateral transfers(ranch A:63%,ranch B:67%)(P＜0.05).The study suggested that twin technology would effectively enhance reproductive efficiency and economic returns in beef cattle production by optimizing recipient selection,hormonal regulation and transfer procedures.关键词
肉牛/西门塔尔/同期发情/胚胎移植/双胎生产Key words
beef cattle/Simmental/estrus synchronization/embryo transfer/twin production分类
农业科技引用本文复制引用
庄雨龙,陈国福,梁坤,王洪亮..肉牛双胎生产技术实践[J].黑龙江动物繁殖,2026,34(1):63-66,4.基金项目
北大荒集团项目"现代农业产业技术体系创新(畜牧专项)"(JT2025KJCX06) （畜牧专项）
财政部和农业农村部国家现代农业产业技术体系项目(CARS-37) （CARS-37）
