应用氯前列烯醇诱导山羊多胎率的研究

摘要

为了增加养羊业的经济效益,以及医学、药学进行山羊动物试验的需要,必须提高山羊的繁殖效率,增加山羊怀孕的多胎率.为此作者特设计采用氯前列烯醇(Cloprostenol)对华东地区的山羊(江苏海门山羊)进行同步处理并配种以达到提高山羊的多胎率,提高山羊利用效率的目的.试验分成两组,氯前列烯醇诱导组(T)136头和非诱导组(UT)136头.结果显示,采用氯前列烯醇诱导的山羊(T)多胎率达到78.7％(107/136),怀孕羔羊数平均达到了2.01只/胎(273/136),而未采用氯前列烯醇诱导的对照组山羊(UT)的多胎率只有39.0％(53/136),怀孕胎数平均为1.31只/胎(179/136),两组之间差异极显著(P＜0.01),氯前列烯醇处理组羔羊出生后生长、发育正常.本试验结果表明,通过氯前列烯醇诱导可以明显提高山羊的怀孕多胎率,对山羊优良品种的繁育、种群的快速扩繁及试验用山羊的研制等具有重要的经济价值和应用价值.%To improve the economic profit from the goat husbandry, as well as to benefit research fields such as medicine, pharmacology, animal sciences including stem cell research that require large amount of goats for experimental studies, we must improve the reproductivity and the multifetal pregnancy (MP) rate. Thus, we carefully desired a study using cloprostenol for synchronizating the reproductive cycles of Jiangsu Haimen goats originated in East China area to improve the utilization of goats through improving multifetal pregnancy rate. The two experimental groups each included 136 from cloprostenol induced (T) and untreated (UT) goats resulted in a MP rate of 78. 7% (107/136) and 39. 0% (53/136) , respectively. The average fetus per pregnant goat improved from 1. 31 of uninduced (UT) to 2. 01 for the induction group (T). The improvement was statistically significant (P<0. 01). Noteworthy, the new born goats resulted from the induction group developed normally. The present study demonstrated that cloprostenol could significantly improve rate of multifetal preganancy and thus goat production, with important economical benefit and research applications in the agricultural, medical and scientific fields.