消化能力下降对养殖公牛福利的影响
I Veissier1, R Bellagi1, P Nozière1
1Université Clermont Auvergne, INRAE, VetAgro Sup, UMR Herbivores, 63122 Saint-Genès-Champanelle, France.
概括
消化性摊位对公牛的福利产生负面影响,导致压力和活动减少. 缩短停产时间并不能减轻这些不良影响,这表明在反动物营养研究中需要改善动物处理.
科学领域:
- 动物科学动物科学
- 类动物营养 类动物营养
- 动物福利 动物福利
背景情况:
- 饮食消化能力和平衡是反动物营养的关键指标.
- 传统的评估方法涉及长时间被关押在限制性消化能力的摊位里.
- 这种限制对福利的影响尚未完全理解.
研究的目的:
- 为了评估安置在消化的公牛的福利.
- 为了确定是否减少监禁时间减轻了对福利的负面影响.
- 为了评估公牛对马关闭的生理和行为反应.
主要方法:
- 十六只夏洛莱公牛被限制在消化中2周 (两次重复).
- 监测了料摄入量,姿势,活动模式和外部病变.
- 分析了头发皮质醇水平,以评估应激反应.
主要成果:
- 与群体所相比,公牛的料摄入量减少,站立/不活动时间增加,所内的食/反时间减少.
- 负面的福利指标,包括病变和头发皮质醇升高,在摊位中更为明显.
- 响应表明公牛没有习惯于被关闭,一些指标随着时间的推移而恶化.
结论:
- 消化性摊位对公牛施加了显著的福利限制.
- 缩短监禁时间并不能减轻对福利的负面影响.
- 封闭和处理在摊位中都会导致反动物营养研究中不利的福利结果.
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