猪“磨牙”的原因及防控技术

先行动

这是一种早就被研究过的动物固僻行为，是恶劣环境尤其是单调而应激环境所致。懂英文的话查查文献，能发现许多论述。

不要碰到什么老往营养缺乏或感染性疾病上去想，那是无的放矢。野外自由活动的动物不管营养多缺乏或感染性疾病的发病率多高，都很少见这种行为。所以改善环境是真正的预防手段。

先行动 于 2010-9-9 12:54 补充以下内容

中国农业院校里有开动物行为学课程的吗？

先行动

动物固僻（重复而没有功能）行为的起因：
How do stereotypies develop? One theory is that animals are motivated to perform a naturally occurring behaviour and if that behaviour is prevented or thwarted, it results in a chronic state of arousal. Once a critical level is reached, the animal performs an abnormal behaviour, such as a stable vice, in an attempt to decrease that arousal. Another theory is that most sequences of behaviour include two distinct phases: an appetitive phase, where the animal is motivated to perform a behaviour and a consummatory phase where the animal completes the behaviour to reduce the initial drive (ie. courtship is an appetitive behaviour terminated by mating). If the animal is unable to reach the second phase, it returns to the original sequence and begins again. Eventually the initial behavioural act becomes a fixed pattern which is refined until it barely resembles a normal behaviour.

畜牧刀客

!3:受益了，谢谢楼主的资料。。。。

howitzki

楼主总结的真好，收藏了~~

csf159357

很好 收藏了

zhengda

好贴  给顶一下

饲料精英

有虫啊