A specialty dog food company is voluntarily recalling a frozen product distributed in four states over fears of possible salmonella contamination.

The Food & Drug Administration said last week that California-based OC Raw Dog has recalled its Turkey & Produce Raw Frozen Canine Formulation.

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The recalled formulations were packaged into 6 1/2-pound Doggie Dozen Patties and 5-pound Bulk Bags with sell-by dates of Oct. 8.

The products were distributed in Colorado, Minnesota, Missouri and Pennsylvania. The food is sold through independent pet specialty retailers.

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No illnesses have been reported. The FDA says pets with salmonella infections may be lethargic and have diarrhea, fever and vomiting.