The Effect of Partial Replacement of Broiler Commercial Feed with Other Feed Ingridients to Native Chicken Growth and Farmers' Income. The assessment aims to determine the effect of substitution of commercial broiler feed with other feed ingredients for local chicken growth. Five hundred free-range chickens aged four weeks were divided into four treatments of feed, each treatment was repeated five times. Treatment R60 was substitution feed up to 60% and commercial broiler feed of 40%; treatment R50 was to substitution feed up to 50% and commercial broiler feed of 50%; treatment R40 was to substitution feed up to 40 % and commercial broiler feed of 60%; (R0) commercial broiler feed 100%. Observations were carried out for five weeks on feed intake and body weight gain. The results showed that the substitution of 40% commercial broiler feed with corn and local chicken feed did not affect body weight gain and feed conversion ratio significantly (P <0.05), however with 50% and 60% substitution, decreased the body weight gain and feed conversion significantly. Substitution of 40% commercial broiler feed with corn and local chicken gave the highest income compared to the other feed formula.