date:Jun 10, 2014
The U.S. Food and Drug Administration (FDA) published two warning letters last week that were issued in late May.
CJ Dairy Farm of Delevan, NY, received a warning letter after selling two calves for slaughter in June 2013 that FDA officials considered adulterated because of unacceptable levels of drug residues in their tissues.
Kidney tissue samples from the animals showed the presence of desfuroylceftiofur at 2.1 and 1.67 parts per million (ppm). FDA has established a tolerance of 0.4 ppm for