The Influence of Probiotics and Antibiotic Growth Promoter on Growth Performance and Hemato-Biochemical Parameters in Broilers

10 days old “Cobb 500” broiler chicks were used to investigate the influence of probiotics and growth promoter supplementation on growth performance and different hemato-biochemical parameters of broilers. They were randomly divided into three equal groups (n=10). Group A was considered as control, fed only with commercial ration and group B and group C were supplemented with probiotics and growth promoter respectively for the period of 21 days. Body weights were measured at 7 days interval and selective organ weights, total erythrocyte count(TEC), hemoglobin (Hb) concentration, packed cell volume (PCV), AST and ALT values were measured at the end of experiment. Results revealed that body weight was increased significantly (p <0.05) in treated groups and the highest body weight was recorded in group B. Significant (p>0.05) differences were found among groups of A, B, and C in the weight of breast meat, liver, Leg meat and spleen. All weights were increased significantly (p>0.05) both in probiotics and antibiotic growth promoter treated groups as compared to that of control group. TEC and Hb concentration were increased significantly (p<0.05) in birds of group B compared to those of birds in control and treated group C. Highest PCV was also recorded in group B but all the values were more or less similar and statistically insignificant (p>0.05). Biochemical parameters like AST were increased significantly (p<0.05) in treated groups of group B and C. Whereas ALT values decreased significantly (p<0.05) in treated groups in similar pattern in comparison to control group. Based on the results it could be concluded that probiotics supplementation shows better significant effect on growth performance and certain hemato-biochemical parameters in broiler chickens.