1. Faculty of Agriculture, University of Novi Sad, Square Dositeja Obradovića 7, 21000 Novi Sad, Serbia
2. Faculty of Agronomy, University of Kragujevac, Cara Dušana 34, 32000 Čačak, Serbia
3. Academy of Applied Studies Šabac, Dobropoljska 5, 15000 Šabac, Serbia
4. Pasteur Institute Novi Sad, Hajduk Veljkova 1, 21000 Novi Sad, Serbia
5. Faculty of Agriculture, University of Priština, Kopaonička bb, 38219 Lešak, Serbia
6. Veterinary Faculty, University of Ljubljana, Gerbičeva 60, 1000 Ljubljana, Slovenia