A total of sixty (60) broiler chickens 4 weeks old were used in a 28-day study. The chickens were randomly assigned to four dietary treatments (T1, T2, T3 and T4) in a Completely Randomized Design (CRD). Each dietary treatment was replicated three times and each replicate had 5 chickens. T1 (Control diet) contained 0% BBM while T2, T3, and T4 contained 5%, 10% and 15%, respectively. Data were collected on the feed intake and weight gain. Feed conversion ratio, daily Protein intake, and Protein efficiency ratio were calculated. Haemoglobin counts, packed cell volume, red blood cell, white blood cell, neutrophils, lymphocytes, monocytes and eosinophils were analyzed. Feed cost/kg, feed cost/kg weight gain/bird/treatment, total cost of production, net returns, total revenue and Cost-benefit ratios were derived from the Analysis