Comment on Common Growth Hormone Used In Cattle Could Have Serious Environmental Impacts

Common Growth Hormone Used In Cattle Could Have Serious Environmental Impacts

A synthetic growth hormone used in cattle production may persist longer in the environment than previously thought. CREDIT: Shutterstock Trenbolone acetate, or TBA, is a synthetic growth promoter used extensively in the cattle industry to help cows add muscle mass quickly. Implanted in the ears of over 20 million cows annually, cattle metabolize TBA to create 17-alpha-trenbolone, an endocrine disruptor that can end up in streams or rivers due to feedlot runoff or cattle manure applied to cropland.

 

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