Smith G R, Thornton E A
Institute of Zoology, Zoological Society of London.
Epidemiol Infect. 1993 Apr;110(2):327-31. doi: 10.1017/s0950268800068266.
Only a small proportion of animals tested were found to be excreting Fusobacterium necrophorum biovar A, the causative organism of necrobacillosis, in the faeces (3 of 69 wallabies, 1 of 66 deer, 2 of 81 cattle). The two positive cattle belonged to a single group of calves on a farm with a history of necrobacillosis and the litter underfoot also readily yielded biovar A organisms. All attempts to demonstrate biovar A in litter on other farms and in soil from an area populated by wallabies and deer failed. Ruminal contents from young beef cattle proved a fertile source of F. necrophorum biovar A, 15 of 18 animals giving a positive result. It is suggested that disturbance of the gastrointestinal microflora leads to intestinal multiplication and faecal excretion of the organism, which may then give rise to necrobacillosis of the body surface.
在接受检测的动物中，只有一小部分被发现粪便中排泄坏死梭杆菌生物变种A（坏死杆菌病的病原体）（69只沙袋鼠中有3只，66只鹿中有1只，81头牛中有2只）。这两头呈阳性的牛来自一个有坏死杆菌病史的农场的一群小牛，而且脚下的垫料也很容易检测出生物变种A。在其他农场的垫料以及沙袋鼠和鹿栖息地的土壤中检测生物变种A的所有尝试均告失败。幼龄肉牛的瘤胃内容物被证明是坏死梭杆菌生物变种A的丰富来源，18只动物中有15只检测结果呈阳性。有人认为，胃肠道微生物群的紊乱会导致该生物体在肠道内繁殖并随粪便排出，进而可能引发体表坏死杆菌病。
