1. Department of Veterinary Pathobiology, Faculty of Veterinary Medicine, Lithuanian University of Health Sciences, Tilzes 18, Kaunas, Lithuania
2. Department of Animal Breeding, Faculty of Animal Science, Lithuanian University of Health Sciences, Tilzes 18, Kaunas, Lithuania
3. Vilnius Department of the State Food and Veterinary Service, Konstitucijos 23b, Vilnius, Lithuania