Animal well-being is a core value at Tyson Foods. That’s why in August 2013 we notified our cattle suppliers of our decision to suspend buying cattle given a government-approved feed supplement known as Zilmax. We observed that a small percentage of cattle delivered to some of our plants had difficulty walking or were unable to move. Some animal health experts have suggested the use of Zilmax as a possible cause.  This is not a food safety issue. It’s about animal well-being and ensuring the proper treatment of the livestock we depend on to operate. Our evaluation of this matter is ongoing, but as an interim measure we stopped buying cattle fed Zilmax as of September 6, 2013.