摘要
为了解决细毛羊优质种源短缺的问题,选用鄂尔多斯细毛羊种羊作为供体羊,蒙古羊作为受体羊,进行胚胎移植试验,以期通过胚胎移植技术进行优质种源快速扩繁。试验选取55只(其中36只进行二次冲胚)鄂尔多斯细毛羊母羊作为供体,以蒙古羊作为受体,采用递减法注射FSH进行超排处理。经同期发情、超数排卵、人工授精等过程后,采用手术法子宫角回收供体的胚胎,经鉴定后移植。结果表明:91只供体共获得胚胎788枚,可利用胚胎479枚,供体平均冲胚8.66枚/只,供体平均可利用胚胎5.26枚/只,胚胎可利用率60.79%。将479枚胚胎移入469只受体,妊娠290只,受胎率为61.83%,产羔253只,繁殖率为53.94%。
In order to solve the problem that breeds of good quality fine wool sheep are scarce and to develop an efficient and rapid propagation technology, Ordos Fine Wool Sheep （n=55） and Mongolian Sheep （n=36） were selected as donors and receptors respectively to evaluate the efficiency of embryo transfer experiment. The donors were subjected to super-ovulation by multiple injections of FSH with diminishing dosages. After the treatment of synchronous estrus, super-ovulation and artificial insemination, the embryos of donors were recovered from uterine horn by surgery. The embryos were flushed twice for 36 of the 55 donors. The recovered embryos were identified and were then transferred into the receptors. The results showed that a total of 788 embryos were recovered and 479 of them are available; the average number of recovering embryos for each donor was 8.66, the average number of available embryos for each donor was 5.26, and the available embryos rate was 60.79%. A total of 290 receptors were pregnant, indicating that the conception rate was 61.83% （290/469）; a total of 253 iambs were obtained, indicating that the reproductive rate was 53.94% （253/469）.
出处
《畜牧与饲料科学》
2017年第1期32-34,共3页
Animal Husbandry and Feed Science
基金
国家科技支撑计划课题:主要畜禽新品种选育与关键技术研究(2011BAD28B)
超细型细毛羊新品种(系)选育与关键技术研究(2011BAD28B05-1-6)
内蒙古现代农牧业科技服务体系绒毛用羊示范推广团队建设项目
鄂尔多斯市细毛羊选育提高项目
关键词
鄂尔多斯细毛羊
超数排卵
胚胎移植
Ordos Fine Wool Sheep
super-ovulation
embryo transfer
