摘要
选择新疆石河子地区某规模化牛场300头产后泌乳奶牛,采用5种不同的"同期排卵+定时输精"处理方案,研究其对产后泌乳牛发情率、受胎率及21 d妊娠率的影响。结果表明:5组不同处理方案的产后泌乳奶牛发情率,受胎率及21 d妊娠率均显著高于未经任何处理的对照组(P<0.05)。因此,在规模化牛场对奶牛进行同期排卵方案处理时,增加一个孕酮栓装置,可以有效地提高定时输精后的受胎率,较好地提高奶牛场的繁殖效率。
In this study, five different treatments including 7 d-Ovsynch, PGF2α＋Ovsynch, PGF2α ＋GnRH＋Ovsynch, 7 d-Ovsynch＋PD, 5 d-Ovsynch＋PD were used to conduct the timing of insemination and ovulation for 300 postpartum lactating dairy cattle of a large-scale farm in Shihezi, Xinjiang. The results indicated that the estrus rate, pregnancy rate and 21 d pregnancy rate in five different treatments were significant higher than those in the control group （P〈0. 05 ）. Thus, using the ovsynch ＋ PD in large-scale dairy cattle farm could effectively improve the efficiency of reproduction timing of the conception rate after insemination and preferably improve the economic benefits in dairy farm.
出处
《畜牧与兽医》
北大核心
2017年第7期5-8,共4页
Animal Husbandry & Veterinary Medicine
基金
山东省现代农业产业技术体系牛产业创新团队建设项目(SDAIT-09-05)
