New guidance from the Food and Drug Administration’s (FDA) Center for Veterinary Medicine, to begin after June 2023, redefines beef cattle’s production phases, which will affect label claims of existing and new drugs. Zac Carlson, North Dakota State University Extension beef cattle specialist, explains that use of implants in beef cattle production will be part of the changes because they are considered a drug.
The new production phases are:
1. Calves nursing their dams less than 2 months of age.
2. Calves nursing their dams 2 months of age or older.
3. Growing beef steers/heifers on…
