基于新型荷尔蒙制剂的新定时人工受精技术对母的影响
Kexiong Liu1, Hanbing Zhang1, Xiaoling Xu1
1Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China.
Animal reproduction science
|August 23, 2025
概括
一个新的固定时间人工授精 (FTAI) 协议使用阿尔特诺杰斯特片 (ALT-T),重组猪FSH (rpFSH) 和重组hCG (rhCG) 对母猪有希望. 与传统方法相比,这种创新方法实现了类似的繁殖同步,同时显著增加了幼儿数量.
科学领域:
- 生殖生物学
- 猪产量
- 动物科学
背景情况:
- 优化生殖管理对于生产猪的效率至关重要.
- 传统的固定时间人工授精 (FTAI) 协议需要精确的雌激素同步.
- 正在探索新的激素干预措施以提高生殖效率.
研究的目的:
- 评估一种新型的FTAI治疗方案,其中包括阿尔特诺日斯特片 (ALT-T),长效重组猪FSH (rpFSH) 和重组hCG (rhCG).
- 将新方案的疗效和生殖结果与传统方案进行比较.
- 评估新协议对荷尔蒙特异性,卵泡发育和产量的影响.
主要方法:
- 160只小被分为对照组 (口服阿尔特诺基斯特溶液,eCG,GnRH) 和新治疗组 (ALT-T,rpFSH+rhCG,rhCG).
- 在GnRH/ rhCG注射后的24小时和40小时,两组都接受了双重授精.
- 分析了荷尔蒙特征,卵泡大小,雌激发率,怀孕率,生育率和产率.
主要成果:
- 在新组中,激素特征大致相似,在ALT-T治疗期间LH显著增加.
- 卵泡大小最初是可比的,但在排卵前的对照组更大.
- 不过,新方案的总产量和生猪的数量显著增加.
结论:
- 使用ALT-T,rpFSH和rhCG的新型FTAI协议显示了与传统方法相比的同步效果.
- 这项新协议显著提高了子的生产力,为黄金繁殖管理提供了可行的替代方案.
- 这些发现支持采用这种增强的FTAI协议,以提高猪生产的整体效率.
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