乳牛管理:操作者调节可以是一个有效和可行的工具来减少压力,并促进动物的密切接触和处理吗?
G Marchesini1, D Fossaluzza1, R Palme2
1Department of Animal Medicine, Production and Health, University of Padova, 35020 Legnaro (PD), Italy.
Journal of dairy science
|February 18, 2024
概括
操作员调节训练通过降低阴道度和改善操控,减少了奶牛的压力. 此次培训还使所有母牛习惯于与人互动,从而简化了管理实践.
科学领域:
- 动物科学动物科学
- 行为科学 行为科学
- 兽医医学 兽医医学 兽医医学
背景情况:
- 定期监测乳牛母牛的生长是非常重要的,但由于处理引起的压力,这是具有挑战性的.
- 雌牛,特别是那些对人类有反应的雌牛,在制和处理过程中可能会经历严重的压力.
研究的目的:
- 调查操作员调节训练是否可以减少乳牛母牛的压力.
- 评估培训是否提高了处理方便性,并减少了农民的劳动力.
- 评估培训对不同年龄的公牛和对人类的反应 (RTH) 的影响.
主要方法:
- 60只荷尔斯坦公牛 (年轻/老,自信/中立/不自信的RTH) 被分为训练有素和未训练有素的组.
- 经过训练的公牛接受了8次目标训练,并为触摸接触提供了正增强 (料).
- 在训练前后测量了生理 (心率,RMSSD,便皮质醇代谢物) 和行为压力指标.
主要成果:
- 所有受过训练的母牛成功完成了目标训练,在第四次训练中可以触摸敏感区域.
- 受过训练的公牛表现出比未受过训练的公牛更高的RMSSD (表明压力较低).
- 虽然训练没有影响心率,皮质醇或危险行为,但它减少了所有母牛的避开距离,这表明习惯.
结论:
- 操作者调节有效地降低了的生理应激指标 (阴道音调).
- 培训通过减少小牛对人类的反应来提高处理能力,使动物和农民都受益.
- 与习惯性学习一样,非关联性学习也会导致未经训练的暴露在训练环境中的人类反应能力降低.
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