The Effect of Acepromazine Maleate on Feeder Steers in Transit and Feedlot

摘要

The tranquilizer, acepromazine maleate, was evaluated using 34 yearling Hereford feeder steers. Animals injected prior to loading lost significantly less weight (29.5%) during transit from Edmonton to Winnipeg than their untreated counterparts. The weight loss difference following arrival at Macdonald College, Quebec, was not significant. During a short term feeding period the group fed ace promazine maleate gained significantly more rapidly (12.8%) than the control group. There were no significant differences in dressing percentage or carcass grade.