AKSU T, OZSOY E, SARIPINAR AKSU, YORUK MA, GUL M. The Effects of Lower Levels of Organically Complexed Zinc, Copper and Manganese in Broiler Diets on Performance, Mineral Concentration of Tibia and Mineral Excretion. Kafkas Univ Vet Fak Derg, 17 (1): 141 - 146, 2011. DOI: 10.9775/kvfd.2010.2735