U.S. COLD STORAGE STOCKS - MARCH 1 FROZEN PORK BELLIES - LBS - 34,471,000, VS A REVISED 34,900,000 ON FEB 1 AND 51,218,000 A YEAR AGO. U.S. COLD STORAGE STOCKS - MARCH 1 FROZEN PORK BELLIES - LBS - 34,471,000, VS A REVISED 34,900,000 ON FEB 1 AND 51,218,000 A YEAR AGO.