RHINELANDER, Wis. (AP) -- A Wisconsin company issued a precautionary recall of dry dog and cat food because it could contain rice protein tainted with a chemical called melamine that's blamed for causing more than a dozen pet deaths.

The company, Doctors Foster and Smith of Rhinelander, is recalling its Adult Dry Lite Dog and Adult Dry Lite Cat food after another company recalled rice protein concentrate.

The Rhinelander company says preliminary tests for the chemical have been negative, and final test results are expected within two weeks.

The company also says it's reformulating the recalled pet food to eliminate rice protein and expects the new recipe to be ready by mid-May.