Tyson Foods to suspend buying cattle fed Zilmax additive

By Theopolis Waters CHICAGO (Reuters) – Tyson Foods Inc, the largest U.S. meat processor, said it would suspend purchases of cattle fed the growth enhancer Zilmax, saying it was worried about cases of cattle with difficulty walking although it did not know the specific cause of problem. Rumors of Tyson’s action sparked a sharp rally in Chicago Mercantile Exchange cattle futures on Wednesday. Removing Zilmax from feed rations would bring down the weight of cattle, resulting in less available beef and likely drive up beef prices. …