livestock U.S. plans to dig deeper on antibiotics given to livestock The U.S. government next year plans to begin collecting more detailed data on antibiotics used on fa... Mar 30, 2015 09:00 AM EDT U.S. lawmakers want to curb antibiotic use on farms Two U.S. lawmakers are calling for action to rein in antibiotic use in livestock in response to a Re... Sep 16, 2014 09:07 PM EDT