Barowicz T
J Dairy Res. 1979 Jan;46(1):41-6. doi: 10.1017/s0022029900016836.
Milk-ejection activity was determined in the blood plasma of ewes during normal milking and during milking when adrenaline was injected intravenously before or after udder stimulation. It was found that administration of adrenaline either before or after udder washing, decreased the oxytocin concentration and milk yield but increased the yield by hand-stripping. Adrenaline also retards the average time for peak oxytocin concentration. These results and the use of a beta-receptor blocker to inhibit the effect of adrenaline at the myoepithelial cell level indicate that in ewes adrenaline can prevent the release of oxytocin from neurohypophysis.
在正常挤奶期间以及在乳房刺激之前或之后静脉注射肾上腺素时挤奶的母羊血浆中测定了排乳活性。结果发现，在乳房清洗之前或之后给予肾上腺素，会降低催产素浓度和产奶量，但通过手工挤奶可提高产奶量。肾上腺素还会延迟催产素浓度达到峰值的平均时间。这些结果以及使用β受体阻滞剂在肌上皮细胞水平抑制肾上腺素的作用表明，在母羊中，肾上腺素可阻止神经垂体释放催产素。
