Monitoring injection site lesions in Canadian yearling cattle and cull cows and bulls: Spring 1998.

Injection site lesions were found in 15% top butts, 22% blades, 6% eyes of rounds, 0.4% inside rounds, and 8% outside rounds from yearling cattle, estimated to cost $7.15/head processed ($15 million annually). In cull cows and bulls, lesions were found in 33% outside rounds, estimated to cost $3.56/head processed ($2.3 million annually).