Litters farrowed total 147 (25 in 1971, 23 in
1972, 33 in 1973, 32 in 1974 and 34 in 1975); pigs total 1196, 1102 alive at birth 94 (8%) dead at birth. Line differences in loin eye area, backfat thickness and age (adjusted to 220 pounds live-weight) have not been significant. Carcass data
collected from 165 barrows indicate the two lines do not yet differ in carcass traits.