Ali Haydar, Mehtap OZCELIK, Metin OGUN, Ekin Emre, Nilgun PAKSOY, Oguz MERHAN, Erdogan UZLU. Serum Cu, Mn and Zn Levels and Oxidative Stress in Cattle Performing Tongue-playing. Kafkas Univ Vet Fak Derg, 25 (6): 787-791, 2019. DOI: 10.9775/kvfd.2019.21861