Merck wants to test Zilmax on 240,000 cattle but beef industry resists
P.J. Huffstutter and Tom Polansek
Reuters
Merck & Co Inc wants to feed its controversial feed additive Zilmax to 240,000 U.S. cattle to prove it is safe. But there is a problem: giant meat processors like Cargill Inc don’t want to touch animals fed with the drug.