在热潮热带条件下养的泽西牛的运动分数和产后受孕:一项前性研究
Karina Vilés1,2, Andrés García1, Octavio Rugel1,3
1Department of Animal Production, Faculty of Veterinary Medicine and Zootechnics, Agrarian University of Ecuador, Guayaquil 090104, Ecuador.
Veterinary sciences
|March 27, 2024
概括
乳牛的足严重影响了生殖成功,增加了怀孕所需的授精,并延迟了生育能力. 使用运动分数 (LS) 的早期检测对于热带奶牛场来说至关重要,以保持群体的健康和生产力.
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:
- 生殖生理学对乳制品动物的代谢失衡很敏感.
- 热带奶牛养殖在维持动物平衡和生产率方面存在独特的挑战.
- 的特点是运动能力受损,对动物的福利,生产和生育能力产生负面影响.
研究的目的:
- 评估腿对泽西奶牛产后受孕率的影响.
- 在热带环境中评估的严重程度和生殖参数之间的相关性.
主要方法:
- 进行了一项具有横截面设计的前性观察队列研究.
- 在炎热潮湿的热带环境中,52只泽西牛使用五点运动分数 (LS) 系统进行了评估.
- 记录了繁殖变量,包括每次受精和开放日 (或受精到受精间隔 - CCI) 的受精量.
主要成果:
- 移动分数为4和5的奶牛显示每次受精和开放日的受精量增加.
- 在运动分数 (LS) 和负生殖结果之间发现了显著的正相关性.
- 临床 (LS ≥3) 将群体的受孕率从45%降至21.8%.
结论:
- 移动分数 (LS) 是乳牛群的常规监测的一个重要工具,特别是在具有挑战性的热带条件下.
- 早期诊断和的管理对于减轻经济损失和提高乳牛的生育能力至关重要.
- 解决问题可以防止牛的生育延迟,并降低关怀费用.
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