在荷尔斯坦乳牛中,产前阴道温度变化与胎盘排泄时间之间的关联
Miki Sakatani1, Kaiyu Kubota1,2, Satoshi Haga1,3
1Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO), Tochigi 329-2793, Japan.
The Journal of reproduction and development
|June 30, 2024
概括
预测乳牛保留的胎盘 (RP) 对生产率至关重要. 在分娩前监测阴道温度可以帮助识别RP,因为受影响的奶牛表现出明显的温度模式和潜在的能量缺乏.
科学领域:
- 兽医医学 兽医医学 兽医医学
- 生殖生物学 生殖生物学
- 动物科学动物科学
背景情况:
- 保留的胎盘 (RP) 对乳牛的生产力和繁殖产生负面影响.
- 需要在分娩前预测RP的方法来减轻不良影响.
研究的目的:
- 评估阴道温度测量作为乳牛保留胎盘 (RP) 的预测指标.
- 为了研究分娩时间,胎盘排泄时间 (PE时间) 和阴道温度模式之间的关系.
主要方法:
- 在49只荷尔斯坦-弗里西亚公牛和母牛中使用了阴道温度记录设备.
- 产卵和胎盘驱逐时间通过视频记录.
- 对血清样本进行了能量缺乏标志物的分析.
- 胎盘驱逐时间被分类 (0-4小时,4-8小时,8-12小时,RP>12小时).
主要成果:
- 延长的胎盘排泄时间 (>12小时,表明RP) 与缩短的分娩时间相关.
- 根据胎盘驱逐时间,阴道温度模式显著不同.
- 患有RP的奶牛没有表现出典型的产后阴道温度重新升高.
- 血清分析显示,RP的牛体有能量缺乏.
结论:
- 阴道温度监测显示了早期预测乳牛中保留的胎盘的潜力.
- 阴道温度模式的特定变化,以及能量缺乏指标,可能是即将发生RP的信号.
- 这种非侵入性方法可以帮助主动管理以改善生殖结果.
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