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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.

Original source language: Federal Register — Food and Drug AdministrationOpen original release →

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