Cattle and calves on feed for the slaughter market in Idaho from feedlots with a capacity of 1,000 or more head on September 1, 2009 totaled 195,000 head, according to the National Agricultural Statistics Service. The cattle on feed inventory was unchanged from August 1, 2009, but up 8 percent from September 1, 2008. Placements of cattle in feedlots in Idaho with a capacity of 1,000 or more head during August totaled 42,000 head, down 3,000 head from August 2008 placements. Marketings of cattle from feedlots with 1,000 head or more during August totaled 40,000 head, down 4,000 head from the same month a year ago. Other disappearance totaled 2,000 during August 2009.