在室内养的年轻公牛中,脚病变和尸体特征之间的关联
S Ishak1, R Guatteo2, A Lehebel2
1French Livestock Institute, 75012 Paris, France; Oniris, INRAE, BIOEPAR, 44300 Nantes, France.
Animal : an international journal of animal bioscience
|December 5, 2025
概括
年轻公牛的足部病变会对尸体特征产生不同的影响. 一些病变会降低尸体重量,而其他病变,如脚角侵蚀,与更高的重量和更好的形状相关,表明对生产者的复杂经济影响.
科学领域:
- 动物科学动物科学
- 兽医医学 兽医医学 兽医医学
- 农业经济学 农业经济学
背景情况:
- 足部病变在年轻公牛中很常见,但它们对尸体特征的经济影响尚不清楚.
- 之前的研究集中在平均每日增长,忽视了对尸体重量,形状和质量的影响.
研究的目的:
- 调查法国肉牛和奶牛年轻公牛的脚病变和尸体特征 (体重,形状,脂肪覆盖,屠宰年龄) 之间的关系.
- 评估足部健康的经济相关性,而不仅仅是福利问题.
主要方法:
- 收集了来自四个屠宰场的2,089头年轻公牛的尸检后数据.
- 根据标准化标准进行全面的足部检查和病变注释.
- 利用混合多变量回归模型来分析病变和尸体特征之间的关联,调整为品种和农场效应.
主要成果:
- 数字间和球泡与尸体重量有负相关性.
- 脚角侵蚀和鞋底/白线出血与较高的尸体重量和更好的形状有关.
- 脚跟角侵蚀与屠宰年龄的增加有关;与脂肪覆盖和数字皮肤炎的关联是不确定的.
结论:
- 足部病变对尸体特征的影响各不相同,有些病变会对体重产生负面影响,而另一些病变会与表现产生积极相关性.
- 更重的动物可能更容易受到某些病变的影响,这表明生长和足部健康之间存在复杂的相互作用.
- 需要综合管理策略来解决足部健康问题,因为足部健康是影响牛肉生产经济回报的因素.
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