U.S. Cattle on Feed Up 4 Percent. This is the highest July 1 inventory since the series began in 1996. Heifers and heifer calves accounted for 4.15 million head, up 8 percent from 2017. Placements in feedlots during June totaled 1.79 million head, 1 percent above 2017. Marketings of fed cattle during June totaled 2.01 million head, 1 percent above 2017. Other disappearance was 4 percent above 2017...