小牛管理:单独或配对住房影响奶牛小牛的健康和福利
David S McFarland1, Lorna M McFarland2, Darren J Shaw1
1Division of Farm Animal, Veterinary Public Health and Epidemiology, Royal Dick School of Veterinary Studies and the Roslin Institute, Easter Bush Campus, Midlothian EH25 9RG, UK.
Animals : an open access journal from MDPI
|June 19, 2024
概括
与单独安置的小牛相比,在两对安置的奶牛小牛在生长或健康方面没有整体差异. 然而,在对中,更重的小牛表现更好,恐惧反应减少.
科学领域:
- 动物科学动物科学
- 兽医医学 兽医医学 兽医医学
- 动物行为比较 动物行为比较
背景情况:
- 之前的研究表明,配对住房有利于预先断奶奶牛犊的表现和福利.
- 个人住房是一种常见的做法,但它对小牛的福利和发展的影响需要进一步研究.
研究的目的:
- 为了比较两对和单独的预先断奶奶牛犊的表现和福利指标.
- 为了研究双双养的小牛的内对动态和表现差异.
主要方法:
- 130只荷尔斯坦雌牛被分配到配对 (n=85) 或单独 (n=45) 的住房中.
- 收集的数据包括每日活体体重增加 (DLWG),疾病治疗和死亡率.
- 行为评估包括唾液皮质醇水平,食的延迟和接近新物体的延迟.
主要成果:
- 在平均配对和单独安置的小牛之间没有观察到DLWG,死亡率或疾病治疗的显著差异.
- 配对养的小牛对母乳养和新物体相互作用表现出更快的反应.
- 在对内,较重的小牛比较轻的小牛表现出更高的DLWG和更大的探索行为.
结论:
- 虽然配对住房提供了一些行为上的好处,但在配对中存在显著的绩效和福利差异.
- 在双中,较重的小牛的表现优于较轻的小牛,这表明下属动物面临的潜在挑战.
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