Schulz J, Petzold M
Tierarztpraxen St. Dürre, Zschoppach und Petzold, Crimmitschau.
Dtsch Tierarztl Wochenschr. 1998 Jul;105(7):266-9.
A particular failure of the milk-ejection reflex in dairy cows is described on the base of own experiences in farms and reports from literature. Four cases are reported more in detail. Quantity and fat content of cisternal, alveolar and residual milk fractions, oxytocin content in blood serum, milk-ejection after manual teat stimulation, after massage of the clitoris or rectal stimulation of the vagina and cervix were investigated. This failure of the milk-ejection is observed mostly in primiparous cows and always at the begin of the lactation period. It is complete and permanent unless successfully treated, and seems to be based on an central inhibition of the oxytocin release. Treatment consists of thorough udder stimulation and milking followed by an i.v. application of oxytocin in order to remove the residual milk portion. The condition has a good prognosis, if the treatment is carried out regularly for some days and even weeks. Acute Mastitis is the main differential diagnosis.
基于在农场的亲身经历和文献报道，描述了奶牛排乳反射的一种特殊故障。详细报告了四个案例。研究了乳池、乳腺泡和残留乳部分的数量和脂肪含量、血清中的催产素含量、人工乳头刺激后、阴蒂按摩后或阴道和子宫颈直肠刺激后的排乳情况。这种排乳故障大多在初产奶牛中观察到，且总是在泌乳期开始时出现。除非成功治疗，否则它是完全且永久性的，似乎是基于催产素释放的中枢抑制。治疗包括彻底的乳房刺激和挤奶，随后静脉注射催产素以清除残留的乳汁部分。如果连续几天甚至几周定期进行治疗，这种情况预后良好。急性乳腺炎是主要的鉴别诊断。
