Physiological and behavioral consequences associated with short-term prevention of crib-biting in horses
Physiological and behavioral consequences associated with short-term prevention of crib-biting in horses
复制标题
DOI：
10.1016/s0031-9384(98)00070-5
复制
发表时间：
1998-08-01
影响因子：
2.9
通讯作者：
Nicol, C
中科院分区：
文献类型：
--
作者：
McGreevy, P;Nicol, C
马主经常使用物理手段在短期内防止马咬马槽。因为有人提出咬婴儿床可能起到减轻压力的作用，所以在六匹咬婴儿床的马和六匹正常的马中测量了预防咬婴儿床和/或进食对行为、心率、血浆皮质醇和β-内啡肽浓度的影响。当咬婴儿床的人无法咬婴儿床时，他们的摄食行为会增加。当防止咬婴儿床的动物咬婴儿床和进食时，前肠的蠕动发生相对停滞，这表明这些动物的正常肠道功能取决于随意获取食物和合适的咬婴儿床底物。正常马和咬婴儿床的马的平均基线水平没有显着差异，但与预期相反，当防止咬婴儿床时，咬婴儿床的马的β-内啡肽水平高于正常马。在各种测试和控制条件下，咬婴儿床的马的皮质醇平均基线水平高于正常马，但在防止咬婴儿床期间，咬婴儿床的马的皮质醇水平没有显着升高，这表明这种口腔刻板印象的功能并不在于减轻压力。 (C) 1998 爱思唯尔科学公司。
Crib-biting in the horse is frequently prevented in the short-term by horse-owners using physical means. Because it has been proposed that crib-biting may function to reduce-stress, the effect of prevention of crib-biting and/or eating on the behaviour, heart rate, and plasma cortisol and beta-endorphin concentrations was measured in six crib-biting and six normal horses. When crib-biters were unable to crib-bite, they showed an increase in ingestive behaviour. When crib-biters were prevented from crib-biting and eating, a relative stasis in the motility of the foregut occurred, suggesting that normal gut function in these animals depends on ad libitum access to food and to suitable crib-biting substrates. There was no significant difference in the mean baseline levels of normal and crib-biting horses but, contrary to expectations, beta-endorphin levels were higher in crib-biting horses than in normal horses when crib-biting was prevented. Mean baseline levels of cortisol were higher, under a variety of test and control conditions, in crib-biting than in normal horses, but there was no significant rise in cortisol levels in crib-biters during periods when crib-biting was prevented, suggesting that the function of this oral stereotypy does not lie in stress-reduction. (C) 1998 Elsevier Science Inc.