 Butcher hog prices at Illinois slaughter sows were steady at 58 to 70. Barrels and gilts were steady at 52 to 62. Boars ranged from 8 to 28. Pork values closed higher on Friday up 128 at 94.91. Estimated hog slaughter was 456,000 head. Down 16,000 on the week and down 12,000 on the year.