The experiment was conducted on "Cobb 500" broiler chicks to study the effects of additional supplementation of protein and vitamin ADE on growth performances (Body weight gain, weights of different organs like breast, liver, skin, legs and viscera), hematological (TEC, Hb, PCV) and biochemical (AST, ALT, Creatine and Urea level) parameters in Broiler under the department of Physiology, Faculty of veterinary Medicine, BAU in 2012. A total of twenty birds were randomly divided into four equal groups treated with control and different level of protein and vitamin ADE containg diet.