1. 1 University of Veterinary Medicine Budapest, Department and Clinic for Production Animals, H-2225 Üllő, Dóra major, Hungary;
2. 2 MTA-SZIE Large Animal Clinical Research Group, Üllő, Hungary;
3. 3 Utrecht University, Department of Farm Animals, Utrecht, The Netherlands;
4. 4 DPMG Co. Ltd., Cegléd, Hungary