饮酒行为的自动,纵向测量提供了对奶牛社会层次的洞察力
Borbala Foris1,2, Bianca Vandresen1, Kehan Sheng1
1Animal Welfare Program, The University of British Columbia, Vancouver, BC, V6T 1Z6, Canada.
JDS communications
|September 23, 2024
概括
奶牛在为水而竞争时表现出更强大的社会层次,而不是为了料. 饮酒者占主导地位在温度条件中是一致的,影响饮用水和饮用时间.
科学领域:
- 动物行为 动物行为
- 动物养殖 动物养殖
- 社会动力学 社会动力学
背景情况:
- 奶牛为了获得食物和水等必需资源而竞争.
- 了解社会层次对于优化农场管理和动物福利至关重要.
研究的目的:
- 评估使用 EloSteepness 的饮用者和食者对乳牛的社会等级度 (主导地位).
- 为了比较料和水竞争之间的等级动态.
- 调查环境温度和个人主导地位对水的获取和摄入的影响.
主要方法:
- 利用EloSteepness计算动态组中87只奶牛的Elo获胜概率 (优势) 的总和.
- 评估了饮酒者和食者的等级度.
- 热 (温度湿度指数[THI]≥72) 和正常 (THI<72) 条件下的饮酒者等级度的比较.
主要成果:
- 饮用者 (0.55 ± 0.02) 的等级度大于食者 (0.45 ± 0.02),表明水获取的占主导地位更强.
- 在热和正常温度条件之间,等级的度保持一致.
- 食者和饮酒者的个人获胜概率与中等相关 (rs = 0.55).
- 有更高获胜概率的奶牛较少访问饮水者,但每日饮水量较高.
- 较低级别的奶牛调整饮水时间,以避免高峰期.
结论:
- 与料相比,奶牛在争夺水时表现出更明显的社会层次.
- 在不同温度条件下,饮酒者占主导地位是稳定的.
- 监测饮酒行为和占主导地位可以为供水和集体住房的管理策略提供信息.
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