HOG AND CATTLE SLAUGHTER GUESSTIMATES Chicago Mercantile Exchange floor traders and commission house representatives are guesstimating today's hog slaughter at about 300,000 to 305,000 head versus 292,000 week ago and 316,000 a year ago. Saturday's hog slaughter is guesstimated at about 30,000 to 55,000 head. Cattle slaughter is guesstimated at about 128,000 to 130,000 head versus 129,000 week ago and 119,000 a year ago. Saturday's cattle slaughter is guesstimated at about 20,000 to 40,000 head.