摘要
应用羊用孕酮栓、孕马血清促性腺激素和氯前列稀醇相结合的方法对99只空怀小尾寒羊和36只哺乳母羊(产后25-35天)进行同期发情。结果表明:这种相结合的方法是成功的,99只空怀母羊在24小时内的同期发情率达到81.8％,48小时内为89.9％。羊用情酮栓在空怀母羊阴道内放置的天数不同(12天与14天)使同期发情率不同,但差异不显著(P>0.05);时空怀母羊注射不同剂量(330IU/只和250IU/只)孕马血清促性腺激素对羊的同期发情率影响无显著差异(P>0.05)。36只哺乳母羊在24小时与48小时内的同期发情率均为80.6％(29/36),对哺乳母羊注射孕马血清促性腺激素250IU/只的同期发情率为90.0％(18/20),好于注射330IU/只哺乳母羊的同期发情率(68.8％),但差异不显著(P>0.05)。
Ninety-nine thin-tail sheep and 36 breast-feeding sheep (procreated after 25- 35d) were treated with enestrusin and pregnant mare's gonadotrophin(PMSG) and cloprostenol. The estrus rate of 99 sheep was 81. 8% at 24h; 89. 9% at 48h and that of breast-feeding sheep was 80. 6% at 24h, the same as at 48h. The estrus rate were different with enestrusin after 12d or 14d (P<0. 05). The estrus rate was also different with 330IU/PMSG or 250/PMSG (P<0. 05). The estrus rate of breast-feeding sheep treated with 330IU/PMSG or 250IU/PMSG were 68. 8% and 90. 0% (P<0. 05) respectively.
出处
《中国农业科技导报》
CAS
CSCD
2003年第5期108-110,共3页
Journal of Agricultural Science and Technology
