July 18, 2016

Two More Dairies Receive FDA Drug Residue Warning Letters

 |  By: Anna-Lisa Laca

The Food and Drug Administration (FDA) recently sent warning letters to two U.S. dairy farms because they violated drug residue rules involving antibiotics.

A Colorado dairy received a warning because of the Jan. 20 sale of a dairy cow that showed defuroylceftiofur residue in her kidneys above the legal tolerance level of 0.4 ppm established by the FDA and 0.673 ppm of flunixin in her liver tissue.

Additionally, a Michigan dairy received a violation letter from the FDA, also for a cow slaughtered with too much defuroylceftiofur residue in her kidneys. FDA says both farms failed to keep accurate treatment records, which could have decreased the likelihood the residues would have entered the food supply.