VMP 420 Lecture Notes - Lecture 13: Bovine Virus Diarrhea, Cryptosporidiosis, Coccidia
10 Feb 2020
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#2 respiratory disease: mostly around weaning, can occur earlier in life. A system that uses larger pastures for calving, rather than high animal density calving lots. They move around the lots over the weeks. Type 1: non-cytopathic, makes up 70% of bvd strains, persistent infection, occurs between 40 and 125 days of gestation, sees virus as itself , treat with supportive care, results in mild to severe respiratory disease and diarrhea. Type 2: cytopathic, transient infection, more severe but less common. Transmission: transiently infected animals, persistently infected animals. Selected nutritional and metabolic diseases of beef cattle. Goal for feeding cattle: maintain body condition. Body condition scoring: range from 1-9, 1= thin, visible bone structure, very little muscle or fat, 9= obese, ~34% body fat, 5-6 is optimum, where to look, backbone, hooks, tailhead, pins, flank, ribs, and brisket (chest) Ruminant nutrition: health of the cow directly relates to the health and stability of the microbial population in the rumen.
