安格斯牛的同期发情试验

发布时间：2018-04-21 08:17

本文选题：安格斯牛 + 同期发情　；参考：《中国牛业科学》2017年02期

【摘要】：[目的]同期发情技术是近年来畜牧生产中应用的繁殖控制新技术;[方法]本试验采用两种方法对安格斯牛进行同期发情处理,研究不同处理药物、处理方式、季节因素等因素对安格斯牛同期发情率的影响。试验分为GnRH+一次PG法处理组和撤CIDR栓后立即肌注PG组。[结果]结果表明,两组都能获得较高的同期发情率,且前者的受胎率略低于后者的受胎率;冬春季(11~4月份)的同期发情率比夏秋季(5~10月份)略高;对经产母牛的同期发情处理效果稍优于育成牛;体况因素也是母牛发情的重要影响因素之一。[结论]综合考虑生产所用经济成本以及操作简易程度等因素,在实际生产实践中更宜使用GnRH+一次PG法。
[Abstract]:[objective] synchronous estrus technology is a new breeding control technique used in livestock production in recent years. [methods] in this experiment, two methods were used to treat Angus cattle with synchronous estrus, and different treatments and treatments were studied. Effects of seasonal factors on synchronous estrus rate of Angus cattle. The experiment was divided into two groups: group treated with GnRH single time PG and group PG injected intramuscularly immediately after removal of CIDR thrombus. [results] the results showed that the rate of synchronization estrus was higher in both groups, and the conception rate of the former group was slightly lower than that of the latter group, and the rate of synchronous estrus in winter and spring was slightly higher than that in summer and autumn. The effect of estrus synchronization on cows was slightly better than that of mature cows, and body condition was also one of the important factors affecting estrus of cows. [conclusion] considering the economic cost of production and the ease of operation, it is more appropriate to use GnRH one-step PG method in practice.
【作者单位】：蒲城县畜牧技术推广中心;西北农林科技大学动物科技学院;渭南市畜牧兽医局;甘肃张掖市畜牧兽医局;
【基金】：秦川肉牛种质创新及高效健康养殖关键技术集成与示范、富硒畜禽水产饲料研制开发及产业化及陕西省奶牛产业技术体系资助
【分类号】：S823

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