摘要
为了研究适于大型肉牛———南德温牛的超数排卵及胚胎移植技术,选择11头适龄南德温牛为供体牛和9头南阳牛为受体牛,进行CIDR-FSH-PG超数排卵和胚胎移植试验。结果表明,供体牛均按时发情,反应率100%,共采胚99枚,获可用胚胎65枚,平均每头5.91枚,可用胚胎率65.0%,可用胚胎等级A、B、C级分别为38.5%、30.8%、30.7%,共移植受体9头,妊娠6头,受胎率66.67%,共产犊9头,其中产双犊3头,其余胚胎进行了冷冻保存。
In order to study the appropriate technology of superovulation and embryo transfer of South Devon cattle, 11 mature cows of South Devon and 9 Nanyangcows were selected as donors and recipients respectively, and the experiments of superovulation and embryo transfer in the system of CIDR-FSH-PG were carried out. The results showed that all the donors were in oestrum at the appointed time. A total of 99 embryos were collected and among them available embryos were 65. Averagely each donor had 5.91 available embryos and the rate of available embryos was 65%. Among the available embryos the shares of grade A,B and C were respectively 38.5%, 30.8% and 30.7%. Among the 9 recipients the pregnant cows were 6. The conception rate was 66.7 %. A total of 9 calves were born and 3 recipients produced twins. The rest of the embryos were stored in a liquid nitrogen tank.
出处
《上海农业学报》
CSCD
2006年第3期1-3,共3页
Acta Agriculturae Shanghai
基金
上海农业"四新"技术推广项目资助[农科推字(2004)第2-4-1号]
关键词
南德温牛
胚胎移植
South Devon cattle
Embryo transfer
