Kasel Associated Industries, a manufacturer of pet treats and chews, is voluntarily recalling all products manufactured at its Denver, Colorado, USA, facility from April 20, 2012, through September 19, 2012, due to possible Salmonella contamination.

Recalled dog treat brands include: B oots & Barkley, BIXBI, Nature’s Deli, Colorado Naturals, Petco and Best Bully Stick items.

The recalled dog treats were distributed through various retailers across the US between April 20 and September 19. The treats contain lot numbers with either a one-year or two-year "Best By" date. A complete list of all products, with UPC codes and lot numbers, can be found on the US Food and Drug Administration's website .

Kasel Industries says it has not received any reports of illnesses to date in connection with these products.

Consumers who have purchased any listed products should return them to the place of purchase for a full refund. Consumers with questions may contact Kasel Associated Industries at +1.800.218.4417 Monday through Friday, 7 a.m. to 5 p.m. MDT.