1. 1Institute for Health Care of Poultry, Veterinary Faculty, University of Ljubljana, Ljubljana, Slovenia
2. 2Department of Animal Hygiene, Behaviour and Welfare, Veterinary Faculty, University of Zagreb, Zagreb, Croatia
3. 3Department of Biology, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
4. 4Department of Biology, Veterinary Faculty, University of Zagreb, Zagreb, Croatia
5. 5Department of Veterinary Economics and Epidemiology, Veterinary Faculty, University of Zagreb, Zagreb, Croatia
6. 6 Veterinary Clinic Max-Lavrica, Škofljica, Slovenia
7. 7Unit for Administrative Legal Affairs, Veterinary Faculty, University of Ljubljana, Ljubljana, Slovenia
8. 8Institute for Microbiology and Parasitology, Veterinary Faculty, University of Ljubljana, Gerbičeva 60, Ljubljana, Slovenia