Business · 23/01/1995Updated: 10/18/2026 · 1 min read
FDA Approves New Animal Drug for Weight Gain and Feed Efficiency
Summary
The FDA is amending its regulations to approve a new animal drug application filed by Roussel-Uclaf, which allows for the use of an ear implant containing trenbolone acetate and estradiol to increase weight gain and feed efficiency in heifers raised in confinement for slaughter.