WASHINGTON — (USDA) — Cattle and calves on feed for slaughter in the United States for feedlots with capacity of 1000 or more head totaled 11.4 million head on July 1. The inventory included 7.12 million steers and steer calves up three percent from the previous year. This group accounted for 63 percent of the total inventory. Heifers and heifer calves accounted for 4.25 million head, up slightly …