Baldi A, Bontempo V, Cheli F, Corino C, Polidori F
Institute of Animal Nutrition Veterinary Medicine, University of Milan, Italy.
Zentralbl Veterinarmed A. 1994 Apr;41(3):189-96. doi: 10.1111/j.1439-0442.1994.tb00085.x.
The aim of this study was to evaluate if metabolic and endocrine adaptive responses to stressful stimuli are influenced by clenbuterol treatment in pigs. Two groups of nine Goland barrows of 167 kg liveweight, fed diets containing 0 (control) or 1 ppm of clenbuterol (clenbuterol-treated) for 40 days, were used. Blood samples were collected by jugular venipuncture the day before (day 40) and at slaughter (day 41). On day 40 clenbuterol-treated pigs had lower levels of thyroxin, tri-iodothyronine, insulin, urea and higher levels of lactate and creatine phosphokinase activity. On day 41, thyroxin concentration was lower and creatine phosphokinase activity higher in clenbuterol-treated pigs than in controls. In response to transport and slaughterhouse procedures, most of the parameters considered both in clenbuterol-treated and in control pigs increased.
本研究的目的是评估猪对压力刺激的代谢和内分泌适应性反应是否受克伦特罗处理的影响。使用了两组体重167千克的戈兰公猪，每组9头，分别饲喂含0（对照）或1 ppm克伦特罗（克伦特罗处理组）的日粮40天。在第40天（处理前一天）和屠宰时（第41天）通过颈静脉穿刺采集血样。在第40天，克伦特罗处理组猪的甲状腺素、三碘甲状腺原氨酸、胰岛素、尿素水平较低，乳酸和肌酸磷酸激酶活性较高。在第41天，克伦特罗处理组猪的甲状腺素浓度低于对照组，肌酸磷酸激酶活性高于对照组。在运输和屠宰场程序的应激反应中，克伦特罗处理组和对照组猪的大多数参数都有所增加。
