Records of back fat thickness of Indigenous pigs and their Large white Yorkshire crosses were collected for present studies. The overall least square means and heritability estimates for back fat thickness were recorded as 2.490+0.334 cms and 0.684+0.233 respectively. Significant effect of genetic groups, year and sire were recorded on back fat thickness. The genetic correlation of back fat thickness with other carcass traits were recorded as higher magnitude with low standard error while phenotypic correlation among all carcass traits were of medium magnitude.
