摘要
为探究春、秋、冬三季以东弗里升奶绵羊为供体进行体内胚胎生产及移植的效果,并为建立高效优质种羊扩繁体系提供理论依据,试验选用99只东弗里升奶绵羊为供体、934只乌珠穆沁羊为受体,在春、秋、冬季进行体内胚胎生产和移植,45d后进行B超检测。结果表明:左侧子宫回收胚胎数为春季5.92枚,秋季7.76枚,冬季6.33枚,季节之间差异不显著(P>0.05);右侧子宫回收胚胎数秋季(8.53枚)显著高于春季(5.08枚)和冬季(5.69枚,P<0.05);回收胚胎数秋季(16.33枚)显著高于春季(10.42枚)和冬季(12.19枚,P<0.05);可用胚胎数为春季9.08枚,秋季11.56枚,冬季9.36枚,季节之间差异不显著(P>0.05);单胚移植妊娠率秋季(63.34%)和冬季(58.99%)显著高于春季(32.79%,P<0.05);双胚移植妊娠率秋季(86.21%)显著高于冬季(50.00%,P<0.05);妊娠率为秋季(66.21%)略高于春季(51.76%)、冬季(60.71%),季节之间差异不显著(P>0.05);产羔率为春季(68.18%)略高于秋季(67.83%)、冬季(65.13%),季节之间差异不显著(P>0.05)。说明春、秋、冬三季东弗里升奶绵羊超排和胚胎移植效果相近,其中秋季进行东弗里升奶绵羊体内胚胎生产和移植效果最佳。
In order to explore the differences in the effects of in vivo embryo production and transplantation using East Friesian sheep as donors in spring,autumn and winter,and to provide a theoretical basis for the establishment of an efficient and high-quality breeding sheep expansion system,99 East Friesian sheep were selected as donors and 934 Ujimqin sheep as recipients,and embryos were produced and transplanted in vivo in spring,autumn and winter.And pregnancy examination was performed 45 days later using B-ultrasound.The results showed that the number of embryos recovered from the left uterus was spring 5.92,autumn 7.76,and winter 6.33,and there was no significant difference between seasons(P>0.05).The number of embryos recovered from the right uterus in autumn(8.53)was significantly higher than that in spring(5.08)and winter(5.69,P<0.05).The number of embryos recovered in autumn(16.33)was significantly higher than that in spring(10.42)and winter(12.19,P<0.05).The number of available embryos was 9.08 in spring,11.56 in autumn and 9.36 in winter,with no significant difference between seasons(P>0.05).The pregnancy rate of single embryo transfer in autumn(63.34%)and winter(58.99%)was significantly higher than that in spring(32.79%,P<0.05).The pregnancy rate of double embryo transfer in autumn(86.21%)was significantly higher than that in winter(50.00%,P<0.05).The pregnancy rate in autumn(66.21%)was higher than that in spring(51.76%)and winter(60.71%),but the difference between seasons was not significant(P>0.05).The lambing rate was 68.18%in spring,67.83%in autumn,and 65.13%in winter,with no significant difference between seasons(P>0.05).The results indicated that the effects of superovulation and embryo transfer were similar in spring,autumn and winter,and the best results were achieved in the autumn in vivo embryo production and transfer.
作者
马文奎
李继成
谭鑫星
张金龙
张效生
吴昊
姬鹏云
李广栋
宋玉坤
杨海
吕东颖
杨明辉
富俊才
阿布力孜·吾斯曼
朱士恩
刘国世
MA Wenku;LI Jicheng;TAN Xinxing;ZHANG Jinlong;ZHANG Xiaosheng;WU Hao;JI Pengyun;LI Guangdong;SONG Yukun;YANG Hai;LYU Dongying;YANG Minghui;FU Juncai;WUSIMAN Abulizi;ZHU Shi’en;LIU Guoshi(College of Animal Science and Technology,China Agricultural University,Beijing 100193,China;College of Animal Science,Xinjiang Agricultural University,Urumqi 830052,China;Beijing Aoxin Animal Husbandry Co.,Ltd.,Beijing 101300,China;Inner Mongolia Caoyuan Hongbao Food Co.,Ltd.,Bayannaoer 015000,China;Institute of Animal Husbandry and Veterinary Science,Tianjin Academy of Agricultural Sciences,Tianjin 300380,China)
出处
《黑龙江动物繁殖》
2022年第1期1-6,共6页
Heilongjiang journal of animal reproduction
基金
内蒙古自治区科技重大专项“奶山羊种质创新与集约化精准养殖关键技术研发与示范”(2021ZD0023-1)
海南省重点研发计划项目“海南优质黑山羊生产性状分子辅助标记和快速扩繁”(ZDYF2021XDNY174)
三亚崖州湾科技城管理局资助项目“海南黑山羊种质资源保存利用与优异基因挖掘”(SYND-2022-19)。
关键词
东弗里升奶绵羊
季节
胚胎生产
超数排卵
妊娠率
East Friesian sheep
season
embryo production
superovulation
pregnancy rate
