凝结剂和可水解 tannins 料添加剂混合物对哺乳乳乳母牛服务每次受孕和开放日的影响
Alejandro R Castillo1, Julio A Di Rienzo2, Damiano Cavallini3
1University of California, Cooperative Extension, Merced, CA. 95340, USA.
Veterinary and animal science
|March 19, 2025
概括
一种含有凝结和水解素的料添加剂 (ByPro®) 显著提高了哺乳乳奶牛的生殖效率. 这导致每次受孕的服务减少,开放日减少,提高了整体群体的生育能力.
科学领域:
- 动物科学动物科学
- 生殖生物学 生殖生物学
- 类动物营养 类动物营养
背景情况:
- 生殖效率对于奶牛场的利能力至关重要.
- 低于最佳的生育率可以导致每次怀孕的开放日和服务增加.
- 料添加剂正在探索,以提高奶牛的生殖性能.
研究的目的:
- 为了评估一种凝结和水解的素料添加剂 (ByPro®) 对哺乳乳乳母牛生殖参数的影响.
- 为了确定对服务的影响,每个概念和开放日.
主要方法:
- 一个商业乳制品农场有两个单位 (约. 3000头牛每头) 的使用.
- 该研究涉及三个时期:补充前期,补充期 (第二期) 和补充后期.
- 每个概念和开放日的服务使用通用线性模型进行统计建模.
主要成果:
- 在补充期间 (第二期),每次受孕的服务减少了9% (2.20至2.02,P<0.01).
- 在II期期间,开放日减少了6.3% (92.5至87天,P<0.01).
- 观测到怀孕和怀孕率的显著改善,在第三期观察到潜在的延续效应.
结论:
- 凝结和水解素 (ByPro®) 的混合物有效地提高了哺乳母牛的生殖效率.
- 添加剂减少了每次受孕和开放日的服务,表明生育能力提高.
- 潜在的转移效应表明对生殖参数的持续益处.
相关概念视频
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