Effects of local anaesthesia of 4 to 8 hours' duration on the acute cortisol response to scoop dehorning in calves.
作者： CM McMEEKAN , DJ MELLOR , KJ STAFFORD , RA BRUCE , RN WARD
DOI: 10.1111/J.1751-0813.1998.TB10160.X
关键词:
摘要: Objective To determine the effect of a long-acting local anaesthetic on plasma cortisol response in calves dehorned using scoop. Design A physiological study with controls. Procedure Seventy female calves, 3 to 4 months old, were divided into seven groups and by scoop or without long acting (bupivacaine) which provides anaesthesia for h. In some treatment was given second time, after h, give 8 h anaesthesia. Blood samples taken before 9 concentrations measured. Results Scoop dehorning caused marked rise concentration, returned pre-dehorning values 7 The bupiva-caine similar those control animals dehorning, but then significant protracted occurred, returning pretreatment at about dehorning. bupivacaine concentration remained increased sharply. Conclusions During its period activity prevented usually seen concentrations; inference it also alleviated pain-induced distress this procedure. However, when effects had worn off rose sharply indicating that still experienced despite being administered.
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