the prevention of respiratory disease. Most operations that processed cattle after arrival (68.0 percent) made some …

of operations). The most frequently diagnosed disease in breeding herds was porcine reproductive and respiratory syndrome … (PRRS, 17 percent of operations). The most frequently diagnosed disease in nursery pigs was Escherichia coli (21 percent of …

sharp drop in the total number of foodborne disease outbreaks attributed to pork or ham. World pork production increased 8 …

(52, 51, and 49 percent of operations, respectively). In culling bulls, infertility, disease, and physical unsoundness …

and calves; reasons for culling were not usually related to ill health or systemic disease. Results showed that almost all …, bruising, and disease exposure. producers of larger herds, classified as having 200 or more cows, tended to cull a larger … percentage of cows for low production that was unrelated to disease than did producers of smaller herds, classified as having …