1. Department of Large Animal Internal Medicine Faculty of Veterinary Medicine Ghent University Merelbeke Belgium
2. Department of Pathology, Bacteriology and Poultry Diseases Faculty of Veterinary Medicine Ghent University Merelbeke Belgium
3. Department of Reproduction, Obstetrics and Herd Health Faculty of Veterinary Medicine Ghent University Merelbeke Belgium
4. Poulpharm BVBA Izegem Belgium
5. Animal Health Care Flanders Belgium