Effect of probiotic supplementation on broiler performance at starter phase

ABSTRACT: A study was conducted to determine the effect of probiotic on performance of broilers chickens at starter phase. In completely randomized design with 4 treatments ( 0 , 0.5, 1, and 1.5 dose of probiotic levels )1 and 5 replicates of 12 birds each 240 day-old mail Hubbard Classic broiler chickens with the average weight of 42±2 gram, chickens were placed in 1 × 1.2 m pens for 21 days. Both feed and water provided adlibitum .the probiotic used was a commercially prepared contained streptococcus and bifidobacterum. Feed intake and body weight gain recorded weekly. Feed intake was not affected by treatment at 21 days of age. Body weight and feed to gain ration at 0-21 days of age were significantly (p < 0.05) improved by treatments. Under the condition of this experiment probiotic levels added to the drinking water improves body weight and feed efficiency at 21 days of age days of age.