A Denver pet-snack maker is recalling five months of production after a state inspection turned up salmonella and the FDA confirmed it in follow-up tests.

Kasel Associates Industries Inc., which packages dozens of animal-based treats under such names as "Boots & Barkley" and "Bixbi," is recalling all of its products made from last April 20 through Sept. 19. The snacks include pig ears, turkey jerky and hearts of lamb.

Salmonella can sicken animals who eat it but also pet handlers who touch tainted food or animal waste. The bacteria can cause diarrhea and vomiting, abdominal cramps and fever, with more rare complications of infections or muscle and joint pain.

The U.S. Food and Drug Administration said there have been no reports of human illnesses but that the agency received "a small number" of complaints of sick dogs who had eaten the treats.

Kasel Associates said through a spokeswoman it has corrected all the problems and that its facilities have since passed third-party audits.

"All corrective measures were implemented immediately and we participated in a voluntary recall," the statement said.

All batches of products are now tested prior to shipping by independent labs, Kasel Associates said.

Positive salmonella tests first came from a Colorado Department of Agriculture inspection last year. The FDA follow-up found that all the finished treats tested had salmonella.

"More than 10 different species of salmonella were found in the firm's products and manufacturing facility, indicating multiple sources of contamination," the FDA said.

Many stores and consumers will still have the products, as some have a two-year shelf life. Stores where the goods were sold include Target, Petco, Sam's Club and Costco.

Buyers should dispose of the recalled snacks in garbage cans with safe lids so that other animals can't get to them, the FDA said.

Those who believe they or their pets might be sick should go to fda.gov to report their concerns.