Dijkstra T, Bosma G J, Veling J
Gezondheidsdienst voor Dieren in Noord-Nederland, Drachten.
Tijdschr Diergeneeskd. 1992 May 1;117(9):269-70.
An acute farming problem is described. The symptoms were poor intake of concentrates, swelling of the anus and vulva, and decreased milk production. Research results show that pig premix was incorporated into the concentrate for dairy cows. Which component of the concentrate was responsible for the symptoms remains to be established.
描述了一个急性养殖问题。症状包括精饲料摄入量低、肛门和外阴肿胀以及产奶量下降。研究结果表明，猪预混料被混入了奶牛的精饲料中。精饲料中的哪种成分导致了这些症状仍有待确定。
