 Butcher hogs at the Midwest cash markets were steady at 60. Slaughter sows were steady at 54 to 60. Boars marked at 18. 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 were higher at the close, up 108 at 95.99. And estimated hog slaughter was 476,000 head.