Effect of supplementation of diets with bacitracin methylene disalicylate and virginiamycin on the growth performance and carcass characteristics in broilers

Two doses of BMD viz., 150 g and 200 g and virginiamycin @ 500 g/MT of feed were fed to the broiler chicks of commercial strain till 6 weeks of age to evaluate their effects on the performance of growth and carcass characteristics along with a control diet. Both BMD and virginiamycin significantly inereased (P < 0.01) the body weight gains and also improved the feed conversion ratio compared to the control diet. The carcass characteristics showed the highest edible weight in the group fed virginiamycin @ 500 g/MT (76.86%) followed by diet having BMD @ 200 g/MT (71.92%), BMD @ 150 g/MT (71.41%) and the control diet (70.68%).