Pirzadeh Naeiny, A., Khadem, A.A., Rezaeian, M., Afzalzadeh, A., Norouzian, M.A. (2013). The Effect of Replacing Barley Grain with Powerfeed® in Finishing Diets on the Performance, Serum Sodium and Potassium Concentration, and the Urine pH of Chall Lambs. *Iranian Journal of Applied Animal Science*, 3(2), 269-272.