Campbell S G, Timoney J F, Underwood A M
J Am Vet Med Assoc. 1975 Mar 15;166(6):604-6.
Actinobacillosis developed in a group of 52 Holstein-Friesian replacement heifers. They were confined to 4 pens in a barn. Cervical abscesses were first observed by the owner in 1 heifer a month after the heifers were fed chopped haylage that was particularly dry, tough, and stemmy. During the weeks that followed, morbidity reached 73% in heifers given the feed. Calves up to 4 months old were not given the haylage and did not develop the disease. Standard bacteriologic methods were used to identify Actinobacillus lignieresii from exudate of abscesses. A biopsy of superficial granulomatous tissue of the lips revealed fibers thought to be of plant origin. Affected cattle recovered in 3 to 6 months. The lesions of 3 cattle given sodium iodide intravenously and of 4 given streptomycin regressed sooner than those given penicillin or no treatment.
一群52头荷斯坦-弗里生后备小母牛发生了放线杆菌病。它们被关在一个牛棚的4个围栏里。在这些小母牛被喂了特别干燥、坚韧且多茎的切碎青贮干草一个月后，主人首次在1头小母牛身上观察到颈部脓肿。在接下来的几周里，食用这种饲料的小母牛发病率达到了73%。4个月龄以下的小牛没有喂青贮干草，也没有发病。采用标准细菌学方法从脓肿渗出物中鉴定出林氏放线杆菌。唇部浅表肉芽肿组织活检显示有被认为是植物来源的纤维。患病牛在3至6个月内康复。3头静脉注射碘化钠的牛和4头注射链霉素的牛的病变比注射青霉素或未治疗的牛消退得更快。
