Schukken Y H, Erb H N, Scarlett J M
Department of Clinical Sciences, New York State College of Veterinary Medicine, Cornell University, Ithaca 14853.
Cornell Vet. 1989 Oct;79(4):319-26.
We investigated the relation between retained placenta and mastitis in Holstein dairy cows admitted to the New York State College of Veterinary Medicine. Cows with retained placenta were three times more likely to develop mastitis during hospitalization than animals without retained placenta. Since the hospital population was not representative of the general population, the possibility of a bias existed; a large bias was not likely because most distorting variables occurred equally in animals both with and without retained placenta. The literature suggests that the relationship between retained placenta and mastitis may be mediated through activity of the peripheral leukocytes. Further research is necessary to test this hypothesis.
我们对入住纽约州兽医学院的荷斯坦奶牛胎盘滞留与乳腺炎之间的关系进行了调查。与无胎盘滞留的奶牛相比，胎盘滞留的奶牛在住院期间发生乳腺炎的可能性要高三倍。由于住院奶牛群体不具有总体奶牛群体的代表性，存在偏差的可能性；但不太可能存在大的偏差，因为大多数造成偏差的变量在有胎盘滞留和无胎盘滞留的奶牛中出现的情况相同。文献表明，胎盘滞留与乳腺炎之间的关系可能是通过外周白细胞的活性介导的。需要进一步的研究来验证这一假设。
