AFTER ANTIBIOTICS FEDERAL RULE RESTRICTSFEED-GRADE ANTIBIOTICS, BUT YOUR TOOLBOX FOR BETTER FEEDLOT PERFORMANCE IS NOT EMPTY.

摘要

Anew federal veterinary feed directive (VFD) has stipulated that antibiotics can't be used in animal feeds without a veterinary prescription. The routine use of feed-grade antibiotics for better cattle performance is over, but there are other tools that can help fill the gap. These feed additives are still available over the counter, which means no direct veterinary prescription is required.Do they work as well as feed-grade antibiotics? In some circumstances the answer is yes, says Grant Dewell, beef Extension veterinarian at Iowa State University. Here's his rundown of options.