The effect of herbal and synthetic amino acids on carcass traits and visceral organs weight expressed as percent of live weight is presented in table 3. Data revealed no significant variation in the defeathered and eviscerated weight amongst the two groups, while the dressed weight was numerically higher in group II than I. However, group I and II did not differ significantly from each other in terms of carcass traits, indicating that 0.1% of herbal methiorep can replace 0.1% of synthetic methionine without affecting the carcass parameters. Cut-up parts yield, expressed as per cent of dressed weight has given in table 3. Significantly lower abdominal fat content was found in group II. Percentage of breast yield and thigh yield were more (P