Cattle and calves on feed for the slaughter market in Idaho from feedlots with a capacity of 1,000 or more head on August 1, 2012 totaled 190,000 head, down 3 percent from the previous year, according to the National Agricultural Statistics Service. The cattle on feed inventory is down 5 percent from July 1, 2012. Placements of cattle in feedlots with a capacity of 1,000 or more head during July totaled 35,000 head, up 46 percent from July 2011 placements. Marketings of cattle from feedlots with 1,000 head or more during July totaled 44,000 head, up 3,000 head from last year. Other disappearance totaled 1,000 head during July.