Dyer N W, Newell T K
Department of Veterinary Diagnostic Services, North Dakota State University, Fargo 58501, USA.
J Vet Diagn Invest. 2002 Sep;14(5):414-6. doi: 10.1177/104063870201400510.
Necropsies were performed on 2 American bison (Bison bison) cows, I of which died acutely and the other that died after a week of illness. Gross and microscopic lesions were consistent with severe mycotic infection of the forestomachs. Both animals had been abruptly placed on a breeder ration 1 month after calving, and had developed acidosis and subsequent fungal invasion of tissues. History and lesions in this case indicate that bison are susceptible to rumen acidosis and its sequelae.
