Chicken jerky treats are once again at the center of a recall, and this time it's for a very unusual reason: state agriculture officials in one state noted that they may be contaminated with unapproved antibiotics.

Nestle Purina PetCare Co. officials announced on Wednesday that they’re pulling Waggin’ Train and Canyon Creek Ranch brand dog treats until further notice.

Milo’s Kitchen, which is owned by the Del Monte Corp. of San Francisco, announced they are also voluntarily recalling the company's Chicken Jerky and Chicken Grillers homestyle dog treats from store shelves nationwide.

New York Department of Agriculture and Marketing found very low levels of four antibiotics that are approved for use in China but are not approved for use in poultry in the U.S. and one antibiotic that is approved for U.S. poultry use, but in finished products, is nearly undetectable.

The antibiotics include sulfaclozine, tilmicosin, trimethoprim, enrofloxacin and sulfaquinoxaline.

Most of the chicken that is used for chicken jerky treats for pets is imported from China.

The agriculture agency has reported the findings to the Food and Drug Administration. "There is no indication that the trace amounts of antibiotic residue is related to FDA's ongoing investigation" into reports that chicken jerky treats are linked to pet deaths, indicated Keith Schopp, spokesman for Nestle Purina.

"Due to regulatory inconsistencies among countries, the presence of antibiotic residue is technically considered an adulteration in the United States."

For months, chicken jerky treats have been under scrutiny by the FDA. In fact, the agency indicated that no toxins, heavy metals or bacterial contamination has been found in finished products.

However, irradiation has been an area of focus of testing.

To err on the side of caution, I have been urging my clients and the public-at-large the following, from the FDA website:

Currently, FDA continues to urge pet owners to use caution with regard to chicken jerky products.

You can count on AnnArbor.com to have up-to-date information on pet product related recalls available. Click here to search our archives of previous recalls.

Lorrie Shaw leads the pets section for AnnArbor.com and owner of Professional Pet Sitting. Shoot her an email, contact her at 734-904-7279 or follow her adventures on Twitter.