广西西门塔尔肉牛超数排卵效果观察

目的]为了分析广西牛超数排卵技术实施现状,方法]试验设计在广西宾阳、都安、大化、崇左等4个肉牛养殖场(4组)各选择16头西门塔尔成年母牛作为试验母牛,采用孕酮栓(GIOB)+促卵泡素(FSH)+氯前列烯醇(PGF_2)的方法对试验母牛进行超数排卵,观测试验母牛获得总胚胎数、可用胚数、一级胚数,分析超数排卵效果。结果]结果显示,超数排卵处理后,试验牛每头获胚胎3～14枚,平均(8.02±2.75)枚;每头获可用胚1～9枚,平均(4.64±1.84)枚;每头获一级胚0～3枚,平均(1.56±0.94)枚,总胚、可用胚、一级胚组间均无显著差异(P0.05),但是,都安组头均总胚、可用胚、一级胚比所有试验牛平均值分别提高5.99%,6.47%,16.03%。结论]结果表明,广西规模化牛场实施超数排卵进展顺利,超数排卵效果良好,组间无显著差异(P0.05),都安组在获得胚胎数量和质量方面最佳。

Observation on superovulation effect of Ximenthal beef cattle in Guangxi

objective] to analyze guangxi NiuChao for superovulation technology implementation present situation, method] experimental design in guangxi binyang, installed, used, left four beef cattle farms, such as group (4) each choose 16 Simon tal adult cow as experimental cows, the progesterone plug (GIOB) + follicle-stimulating hormone (FSH) + chlorine forefront enol (PGF2) method to test the mother for superovulation, cow observation experiment to the total number of embryos, the number of available embryos, embryo number, analysis of superovulation effect. Results] The results showed that after the treatment of superovulation, 3 ~ 14 embryos were obtained from each cow, with an average of 8.02±2.75 embryos. 1 ~ 9 embryos were available per head, with an average of 4.64±1.84 embryos. 0 ~ 3 first order embryos were obtained from each head, with an average of 1.56±0.94. There was no significant difference between total embryos, available embryos and first order embryos (P > 0.05). However, the average total embryos, available embryos and first order embryos of duan group were 5.99%, 6.47% and 16.03% higher than the average of all experimental cattle. conclusion] the results showed that the implementation of overovulation in large-scale cattle farms in guangxi progressed smoothly, and the overovulation effect was good, with no significant difference between groups (P > 0.05). Duan group was the best in terms of the number and quality of embryos obtained.