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Diseases of Yearling Feedlot Cattle in Colorado

DOI

38

Citations

0

References

1976

Year

Rue Jensen, R. E. Pierson, P. M. Braddy, D. A. Saari, L. H. Lauerman, John F. England, D. P. Horton, A. E. McChesney
Journal of the American Veterinary Medical Association

Abstract

During all of 1974 we surveyed, for illnesses and deaths, about 407,000 yearling feedlot cattle. The morbidity was 5.1%, with a case mortality of 18.9% and a population mortality of 1.0%. Both morbidity and mortality were higher during fall and winter than during spring and summer. Of the 3,943 dead cattle, 1,988 were necropsied. The most prevalent diseases were: pneumonia, 48%; diphtheria, 6%; brisket disease, 6%; hemorrhagic colitis, 5%; riding injury, 4%; bloat, 3%; calculosis, 2%; endocarditis, 2%; abomasal ulcers, 2%; bovine viral diarrhea, 2%; embolic pulmonary aneurysm, 1%; and pulmonary edema, 1%.