弱点
异常
肉鸡
基因型
医学
步态
肌肉无力
兽医学
生物
物理医学与康复
动物科学
外科
内科学
生物化学
基因
精神科
作者
SC Kestin,Toby G. Knowles,A. E. Tinch,NG Gregory
摘要
A method for measuring the prevalence of leg weakness by assessing the walking ability of broilers was developed. Walking ability was divided into six categories, from completely normal to immobile. The method was found to give consistent results when performed by the same people. In a survey of commercial, intensively reared broilers, 90 per cent had a detectable gait abnormality and 26 per cent suffered an abnormality of sufficient severity for their welfare to be considered compromised. The prevalence of leg weakness in free range broilers, and three commercial breeds of broilers was determined. The results indicated that genetic factors were an important cause of leg weakness in broilers and also identified a possible relationship between liveweight and leg weakness.
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