毛囊,乳腺动力学和同步方法对Cholistani奶牛生殖反应的影响
Muhammad Awais Ajmal1, Mubbashar Hassan1,2, Muhammad Shahzad1
1Department of Theriogenology, Faculty of Veterinary Science, University of Veterinary and Animal Sciences, Lahore, Pakistan.
概括
提高Cholistani奶牛的生殖效率对于奶牛养殖者来说至关重要. 与Ovsynch (OVS) 相比,受控的内部药物释放 - 淋巴激素释放激素 (CIDR-GnRH) 方法显著增强了雌激反应,排卵和受孕率.
科学领域:
- 兽医医学 兽医医学 兽医医学
- 动物繁殖 动物繁殖
- 乳制品科学 乳制品科学
背景情况:
- 乔利斯塔尼牛是一种泽布品种,具有耐热性和耐性,但其生殖效率不佳,限制了其在奶牛养殖者中的受欢迎程度.
- 长时间的分娩间隔是影响巴基斯坦乳制品部门Cholistani牛经济可行性的首要问题.
研究的目的:
- 通过使用超声波来研究Cholistani奶牛的生殖生理学.
- 评估雌性同步和定时人工授精协议的有效性,以提高该品种的生殖性能.
主要方法:
- 在6只Cholistani奶牛的卵巢动态的超声波监测,包括卵泡波和排卵.
- 两种雌性同步协议的比较:受控的内部药物释放 - 淋巴激素释放激素 (CIDR-GnRH) 和Ovsynch (OVS) 在63只奶牛中.
- 评估每个同步协议后的雌性反应,排卵率和受孕率.
主要成果:
- 雌性周期平均为19.81天,有两个卵泡波;排卵间隔为20.80天.
- 与OVS (84.37%) 相比,CIDR-GnRH协议显示出明显更高的雌性反应率 (93.54%).
- 排卵和受孕率明显高于CIDR-GnRH (分别为91.66%和68.42%) 和OVS (分别为41.37%和33.33%).
结论:
- 在改善Bos indicus奶牛的雌激素反应,排卵和受孕率方面,CIDR-GnRH协议比OVS更有效.
- 实施基于CIDR-GnRH的生殖技术可以提高Cholistani奶牛的生殖效率.
- 优化生殖性能是增加Cholistani牛品种的采用和经济价值的关键.
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