Environmental and health groups had sued to limit the widespread use of penicillin and tetracycline to promote animal growth, which is thought to pose risks to human health.
By GARDINER HARRIS, New York Times
Fri, 03/23/2012 - 9:36am
Environmental and health groups had sued to limit the widespread use of penicillin and tetracycline to promote animal growth, which is thought to pose risks to human health.