Cargill bans Zilmax from beef supply until issues resolved

Cargill Inc, one of the world's largest beef processors, threw a wrench into Merck & Co.'s plans to reintroduce its feed additive Zilmax, stating it will not accept Zilmax-fed beef into the Cargill supply chain "until we are 100 percent confident the animal welfare issues are resolved." Cargill told Reuters Wednesday its ban on Zilmax applies both to beef it processes, as well as to cattle in its own feed lots. In addition, Cargill said it will not use Zilmax-fed beef "until Asia and other trading partners accept it in their markets." Merck's August decision came after Tyson Foods Inc. (TSN) said it would stop accepting Zilmax-fed beef after cattle were observed arriving for slaughter with signs they were having difficulty walking or moving.

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