Savov N, Buchvarova Ia
Vet Med Nauki. 1977;14(6):43-6.
It was found that the pathogenic and occasionally pathogenic bacteria were readily transmitted in cows, originating from the genital tract, and more specifically from the uterine and vaginal discharge to the udder through the lactogenic route. The study of a total of 183 metritis-affected cows for the presence of Streptococcus uberis revealed that the pathogen could be found in the genital tract and in the udder in 20.7 per cent of the investigated cows, and it could be isolated simultaneously from the two organs in 82.6 per cent of the cases. In another group of cows also affected with metritis the study for the presence of different bacterial agents established coincidence in their simultaneous isolation from the uters and the udder in 61.2 per cent of the cases.
研究发现,致病性细菌和偶尔具有致病性的细菌很容易在奶牛中传播,这些细菌源自生殖道,更具体地说,是通过泌乳途径从子宫和阴道分泌物传播到乳房。对总共183头患子宫内膜炎的奶牛进行乳房链球菌检测发现,在20.7%的受调查奶牛中,该病原体可在生殖道和乳房中被发现,在82.6%的病例中,可同时从这两个器官中分离出该病原体。在另一组同样患有子宫内膜炎的奶牛中,对不同细菌病原体的检测发现,61.2%的病例中可同时从子宫和乳房中分离出这些病原体。