促性腺激素和饲养管理方式对蒙古牛超数排卵效果的影响

Effects of hormones and management methord on superovulation of Mongolian Cattle

中文关键词: 蒙古牛  超数排卵  FSH

英文关键词: Mongolian Cattle  superovulation  FSH

中文摘要:

      摘 要：[目的]以经产蒙古牛为供体，探究促性腺激素FSH产地、剂量和供体母牛饲养管理方式对蒙古牛超数排卵数量以及质量的影响。[方法]试验采用随机分组的方法，将68头供体母牛分为两组，一组选取28头牛舍饲圈养，分别注射国产FSH和比利时产FSH进行超数排卵处理，注射总剂量为455 IU/头；另一组选取40头牛放牧饲养，注射国产FSH，总剂量分别为455 IU/头和490 IU/头。[结果]国产FSH有效超排率为92.9%，回收平均总胚胎或卵子数（10.57枚）、可用胚胎数（5.64枚）、A级胚胎数（5.00枚）均显著高于比利时生产的FSH回收数量（P<0.05）；FSH剂量和供体母牛饲养管理方式对超数排卵效果无显著性影响（P>0.05），但舍饲圈养有效超排率比天然放牧高19.2%。[结论]因此，在综合考虑性价比情况下，加强饲养管理并选择适量的国产FSH，可以有效替代进口FSH，适当降低FSH剂量不影响超排效果。

英文摘要:

      Abstract: [Objective] The purpose of this study was to explore the effects of different origin and dose of FSH, different management methord of donor cows on the quantity and quality of superovulation in Mongolian cattle. [Method] The trial was conducted by randomization, Sixty-eight donor cattle were divided into two groups. One group had 28 cattle, were fed in captivity and injected with domestic FSH and Belgian FSH for excessive ovulation, with a total dose of 455 IU/ head.. Another group selected 40 cattle, were grazed and injected China FSH with total doses of 455 IU / head and 490 IU / head, respectively. [Result] The results showed that the effective superovulation rate of China FSH was 92.9%, and the number of mean total embryos (10.57), available embryos (5.64), grade A embryos (5.00) were significantly higher than the number of FSH recovered produced in Belgium (P <0.05). FSH dose and management methord had no significant effect (P> 0.05). [Conclusion] Therefore, under the comprehensive consideration of cost performance, strengthening feeding management and selecting an appropriate amount of domestic FSH can effectively replace imported FSH, and the appropriate reduction of FSH dose does not affect the effect of overdischarge.