Effects of local anaesthesia of 4 to 8 hours' duration on the acute cortisol response to scoop dehorning in calves

被引:59
作者
McMeekan, CM
Mellor, DJ [1 ]
Stafford, KJ
Bruce, RA
Ward, RN
Gregory, NG
机构
[1] Massey Univ, Inst Food Nutr & Human Hlth, Palmerston North, New Zealand
[2] Massey Univ, Inst Vet Anim & Biomed Sci, Palmerston North, New Zealand
关键词
calf; cortisol response; dehorning; local anaesthetic;
D O I
10.1111/j.1751-0813.1998.tb10160.x
中图分类号
S85 [动物医学(兽医学)];
学科分类号
0906 ;
摘要
Objective To determine the effect of a long-acting local anaesthetic on the plasma cortisol response in calves dehorned using a scoop. Design A physiological study with controls. Procedure Seventy female calves, 3 to 4 months old, were divided into seven groups and dehorned by scoop with or without a long acting local anaesthetic (bupivacaine) which provides local anaesthesia for 3 to 4 h. In some treatment groups the local anaesthetic was given a second time, after 4 h, to give 8 h of anaesthesia. Blood samples were taken before and for 9 h after treatment and plasma cortisol concentrations were measured. Results Scoop dehorning caused a marked rise in plasma cortisol concentration, which returned to pre-dehorning values after 7 h. The cortisol concentrations of calves given bupivacaine were similar to those of control animals for 4 h after dehorning, but then a significant and protracted rise occurred, with concentrations returning to pretreatment values at about 9 h after dehorning. In calves given a second treatment of bupivacaine 4 h after dehorning, the plasma cortisol concentration remained similar to control values for 8 h after dehorning but then increased sharply. Conclusions During its period of activity long-acting local anaesthetic prevented the rise usually seen after scoop dehorning in plasma cortisol concentrations; by inference it also alleviated the pain-induced distress caused by this procedure. However, when its effects had worn off the plasma cortisol values rose sharply indicating that animals still experienced pain-induced distress despite local anaesthetic being administered.
引用
收藏
页码:281 / 285
页数:5
相关论文
共 29 条
[1]  
ARMSTRONG JR, 1985, GRAZING ANIMAL WELFA, P21
[2]   PARAMETERS OF NOVELTY, SHOCK PREDICTABILITY AND RESPONSE CONTINGENCY IN CORTICOSTERONE RELEASE IN RAT [J].
BASSETT, JR ;
CAIRNCROSS, KD ;
KING, MG .
PHYSIOLOGY & BEHAVIOR, 1973, 10 (05) :901-907
[3]   EFFECTS OF HANDLING, ADMINISTRATION OF A LOCAL-ANESTHETIC, AND ELECTRICAL DEHORNING ON PLASMA-CORTISOL IN HOLSTEIN CALVES [J].
BOANDL, KE ;
WOHLT, JE ;
CARSIA, RV .
JOURNAL OF DAIRY SCIENCE, 1989, 72 (08) :2193-2197
[4]   Pharmacological treatment of soft-tissue injuries [J].
Buckwalter, JA .
JOURNAL OF BONE AND JOINT SURGERY-AMERICAN VOLUME, 1995, 77A (12) :1902-1914
[5]   OBSERVATIONS ON THE EFFECT OF ELECTRO-IMMOBILIZATION ON THE DE-HORNING OF CATTLE [J].
CARTER, PD ;
JOHNSTON, NE ;
CORNER, LA ;
JARRETT, RG .
AUSTRALIAN VETERINARY JOURNAL, 1983, 60 (01) :17-19
[6]   EFFICACY AND STRESS OF CHEMICAL VERSUS SURGICAL CASTRATION OF CATTLE [J].
COHEN, RDH ;
KING, BD ;
THOMAS, LR ;
JANZEN, ED .
CANADIAN JOURNAL OF ANIMAL SCIENCE, 1990, 70 (04) :1063-1072
[7]  
Fisher AD, 1996, J ANIM SCI, V74, P2336
[8]  
FRIEND TH, 1980, INT J STUD ANIM PROB, V1, P366
[9]   EFFECT OF ELECTROIMMOBILIZATION ON OVINE PLASMA-CONCENTRATIONS OF BETA-ENDORPHIN BETA-LIPOTROPHIN, CORTISOL AND PROLACTIN [J].
JEPHCOTT, EH ;
MCMILLEN, IC ;
RUSHEN, J ;
HARGREAVES, A ;
THORBURN, GD .
RESEARCH IN VETERINARY SCIENCE, 1986, 41 (03) :371-377
[10]   CHANGES IN PLASMA-CORTISOL CONCENTRATION IN LAMBS OF 3 AGES AFTER 3 METHODS OF CASTRATION AND TAIL DOCKING [J].
KENT, JE ;
MOLONY, V ;
ROBERTSON, IS .
RESEARCH IN VETERINARY SCIENCE, 1993, 55 (02) :246-251