date:Dec 31, 2013
are concerns discovered in 30 research studies since the product was introduced in the United States in 2007. In addition, Merck said, the company is planning more field evaluations of Zilmax, using a well-designed collection and analysis of data by third-party industry experts. A prominent epidemiologist and veterinarian will oversee the work, Merck said.
Tyson Foods spokesman Gary Mickelson said his company doesn't know exactly what happened to the small group of cattle that were destroyed at