1. Division of Animal Sciences, Institute of Agrobiological Sciences; National Agriculture and Food Research Organization; Ibaraki Japan
2. MSD Animal Health Belgium; Brussels Belgium
3. Department of Reproduction, Obstetrics, and Herd Health, Faculty of Veterinary Medicine; Ghent University; Merelbeke Belgium
4. Social Science Unit; Institute for Agricultural and Fisheries Research; Merelbeke Belgium
5. Laboratory of Pharmaceutical Biotechnology, Faculty of Pharmaceutical Sciences; Ghent University; Ghent Belgium
6. Department of Virology, Parasitology and Immunology, Faculty of Veterinary Medicine; Ghent University; Merelbeke Belgium