University of Belgrade-Faculty of Agriculture, Institute of Animal Science, Nemanjina 6, Belgrade-Zemun, Serbia (1,5)
Ministry of Agriculture, Forestry and Water Management of Republic of Serbia, Directorate for Agrarian Payments, Bulevar kralja Aleksandra 84, Belgrade, Serbia (2)
University of Novi Sad-Faculty of Agriculture, Department of Veterinary Medicine, Trg Dositeja Obradovića 20, Novi Sad, Serbia (3)
Faculty of Agriculture, “Goce Delčev” University in Štip, Krste Misirkov 10-A, Štip, Republic of North Macedonia (4)