U.S. cattle deaths linked to Zilmax far exceed company reports

The findings could discourage feedlots from using it even if the company 
is successful in reintroducing it to the market

The number of U.S. cattle deaths that may be linked to the Merck & Co. Inc. feed additive Zilmax are much higher than the figures reported by the drug company to the federal government, according to a research study published March 12. The findings by researchers from Texas Tech University and Kansas State University show