Parrott R F, Misson B H, de la Riva C F
AFRC Babraham Institute, Cambridge.
Res Vet Sci. 1994 Mar;56(2):234-9. doi: 10.1016/0034-5288(94)90109-0.
Adult wether sheep (n = 8) were subjected to 60 minutes of psychological (isolation) or physical (transport simulation/standing in water) stress, or a control handling procedure in the home pen. Blood samples were taken before and during these treatments and the plasma concentrations of cortisol, prolactin, noradrenaline and adrenaline determined. All the stressors significantly increased plasma cortisol concentrations (P < 0.001) whereas only transport simulation increased prolactin secretion (P < 0.005). Noradrenaline concentrations showed little change in response to the various treatments, with the exception of isolation which produced a small non-significant increase (P < 0.08). All the stress procedures stimulated adrenaline release within the first 10 minutes but the most marked effects were seen after transport simulation and isolation, both of which induced a significant increase throughout the treatment period (P < 0.01).
成年阉羊（n = 8）接受60分钟的心理应激（隔离）或物理应激（运输模拟/站在水中），或在羊舍进行对照处理程序。在这些处理之前和期间采集血样，并测定血浆中皮质醇、催乳素、去甲肾上腺素和肾上腺素的浓度。所有应激源均显著提高血浆皮质醇浓度（P < 0.001），而只有运输模拟增加催乳素分泌（P < 0.005）。去甲肾上腺素浓度对各种处理反应变化不大，隔离除外，隔离引起小幅无显著意义的升高（P < 0.08）。所有应激程序在最初10分钟内均刺激肾上腺素释放，但运输模拟和隔离后效应最为明显，二者在整个处理期间均引起显著升高（P < 0.01）。
