A study was performed to evaluate the effect of adding dietary enzyme on performance of Japanese Quails. A total number of two hundred and forty (240) healthy Japanese quails (14 days old) of both sexes were arranged into four dietary groups. The first group of chick was considered as control and fed the basal diet without supplementation of any dietary enzyme; second group was fed basal diet supplemented with 0.5g Kemzyme plus dry®/kg diet, third group was fed basal diet supplemented with 0.1g phytase/kg diet, fourth group was fed on basal diet supplemented with Kemzyme® plus phytase. No significant difference was observed in feed conversion ratio. In the period from 14 to 42 days of age, there was significant (P