akbar pirestani,*, mohammad javad bagheri, sayed mahdi hashemi, amir hossine asgarishahi department of animal science, khorasgan (isfahan) branch, islamic azad university, isfahan, iran *corresponding author: email: [email protected] received: 20 july 2013 accepted: 21 november 2013 abstract this study was conducted to evaluate the impact of se+vit e and cu injection on...