Abstract: A total of 144 day old straight run Arber Acres broiler chicks were fed ad libitum up to 42 days of age on 4 isonitrogenous and isoenergetic diets formulated by replacing dietary fishmeal (FM) by silkworm pupae (SWP) up to 42 days of age. Four diets; D0 (6% FM + 0% SWP), D1 (4% FM + 2% SWP), D2 (2% FM + 4% SWP) and D3 (0% FM + 6% SWP) were fed to observe the effect of dietary SWP on performance. The growth rate, feed conversion, livability, meat yield and profitability increased almost linearly on increasing level of SWP.