Virginia ? Animal rights advocates are calling on federal food safety regulators and pet food companies to expand a nationwide recall of dog and cat food to include dry varieties, claiming it makes pets sick.

The U.S. Food and Drug Administration said Thursday it had no plans to suggest a wider recall to pet food companies, and veterinarians said they had not seen a trend of animals becoming ill after eating dry pet food.

The People for the Ethical Treatment of Animals plans to make the appeal today in Washington after it said it received complaints from pet owners who claim their animals suffered kidney failure after eating dry pet food.

FDA spokeswoman Julie Zawisza said she did not know how many of the more than 7,000 complaints the agency has received have concerned dry pet food. The FDA plans to release preliminary results from its investigation into the recall today.