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Ali Mahbobi
Department of Animal Science, University of Zanjan, Zanjan, Iran
Jerzy Woyke
Apiculture Division, University of Life Sciences, Warsaw, Poland
Saeed Abbasi
Department of Animal Science, University of Tehran, Karaj, Iran
Mohammadbagher Farshineh-Adl
Animal Science Research Institute, Karaj, Iran
Ahmad Malakzadegan
Department of Animal Science, Ferdowsi University of Mashhad, Mashhad, Iran