Packer Margins Deep Red; Beef Herd Down in 2012 Beef packer margins last week sunk to -$125.50, according to the Sterling Beef Profit Tracker, with feedyard margins at -$1.77 per head. Cattle futures closed lower today with some profit taking before Friday's Cattle Inventory report. March feeder cattle were down 1.375, April down 0.925 and May down 0.975.Industry expectations, however, are that beef cattle numbers will be down as of 1 January 2012. Last year inventory was 92.6 million head. The average guesstimate is a 1.6 percent drop in the cattle herd, for a total of 91.1 million head. That is on par with 1958, when cattle inventory was 91.176 million head. The difference is that average carcass weight was 575 pounds in 1958; the 20...