Fourteen days old Rhode Island Red chicks were used to evaluate effects of processed fish offal (fishmeal) on DM intake (DMI), body weight gain (BWG), feed conversion ratio (FCR = DMI/BWG) and carcass traits. Ten chicks were assigned to each of 3 replicates of 6 diets (T(1), T(2), T(3), T(4), T(5), T(6), containing 0, 3.32, 6.64, 9.96, 13.28 and 16.6% fishmeal, respectively, having 18.44-19.82% CP). After 77 days of ad-lib feeding, 3 male and 3 female chicks per treatment were fasted overnight, killed and body parts weighed. T(1) had lowest but T(6) highest (p < or = 0.001) daily intakes of 68.5 and 77.0 g DM head(-1), 13.3 and 14.8 g CP head(-1) and 231 and 243 kcal ME head(-1), respectively. BWG (10.7 g head(-1) d(-1)), FCR (6.79), weights of carcass (569 g), breast (160 g) and total edible (676 g) and dressing % (66%) of T(1) (0% fishmeal) was smaller (p < or = 0.001) than those of fishmeal groups {12.8 to 13.5 g head(-1) d(-1); 5.83 to 6.35 g; 671 to 729 g; 196 to 219 g; 807 to 876 g and 67 to 68%, respectively}. Best results of BWG, FCR and carcass traits were obtained at 9.96% fishmeal inclusion level; however acceptable results could be obtained up to 12.5%.