豬“磨牙”的原因及防控技術

先行動

這是一種早就被研究過的動物固僻行為，是惡劣環境尤其是單調而應激環境所致。懂英文的話查查文獻，能發現許多論述。

不要碰到什么老往營養缺乏或感染性疾病上去想，那是無的放矢。野外自由活動的動物不管營養多缺乏或感染性疾病的發病率多高，都很少見這種行為。所以改善環境是真正的預防手段。

先行動 于 2010-9-9 12:54 補充以下內容

中國農業院校里有開動物行為學課程的嗎？

先行動

動物固僻（重復而沒有功能）行為的起因：
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，謝謝樓主的資料。。。。

howitzki

樓主總結的真好，收藏了~~

csf159357

很好 收藏了

zhengda

好貼  給頂一下

飼料精英

有蟲啊