One hundred eighty (180) unsexed day old ‘Cobb400’ broiler chicks of same hatch were weighed individually and distributed randomly into four treatment groups, consisting 45 chicks in each treatment group. Each group was further divided into three replicates of 15 birds each. The four treatments were viz. – control - without supplementation of probiotic or prebiotic (T1), Prebiotic supplementation @ 500 g/tonne of feed (T2), Probiotic supplementation @ 100 g/tonne of feed (T3), Synbiotic supplementation in which probiotic @ 100 g/tonne of feed and prebiotic @ 500 g/tonne of feed (T4). The chicks were reared in deep litter system and standard farm managemental practices were followed.  The body weight, body weight gain, feed consumption of broiler feeding were studied.  The dietary supplementation of probiotic and synbiotic had better (P<0.05) body weight as compared to control and prebiotic fed birds.  

Keywords: Prebiotic; Probiotic; Feed Consumption; Body Weight Gain; Supplementation.