The most reliable way to find out about Canidae pet food recalls is to check the U.S. Food and Drug Administration's listing of pet food recalls. The provided search tool allows users to filter for the specific results they're seeking.
Searching the FDA's recall listings provides information regarding any pet food or treat, not just Canidae. Another source to check is a similar page run by the American Veterinary Medical Association. Both these sites allow searching by brand. The FDA page lists recalls that occurred within the last year, and the AVMA page lists recalls from the past 90 days. Both these websites list government-mandated recalls as well as voluntary recalls initiated by the manufacturer.
Another easy way to keep track of recalls is to sign up for an email-based recall alert service. Dog Food Advisor, a popular canine nutrition website, offers one, as does DogChannel.com. These recall updates may not be as reliable as checking the AVMA or FDA websites, but they do catch the major recalls.
A dog owner who has fed his pet recalled food should seek a veterinarian's advice as soon as possible even if the dog does not seem to be sick. Keeping a sample of the food available is a good idea in case it needs to be tested.