Abstract Intact ram lambs (n= 119) of three fat-tailed Iranian breeds: Karakul, Mehraban and
Baluchi, and their crosses with Corriedale and Targhee rams were kept in feedlot for 100
days after weaning and slaughtered at 175 days of age. Offal items, internal fat, and carcass
cuts were individually weighed, backfat thickness and rib-eye muscle dimensions were
recorded. Mehraban lambs had heaviest and Baluchi lightest (P< 0.05) slaughter and
carcass weights among the three breeds. Measures of body fat and carcass fat were major …