1 Department of Anatomy and Physiology, Faculty of Veterinary Medicine, Lithuanian University of Health Sciences, Tilzes str. 18, Kaunas, Lithuania. ugne.spancerniene@lsmuni.lt.
2 Department of Anatomy and Physiology, Faculty of Veterinary Medicine, Lithuanian University of Health Sciences, Tilzes str. 18, Kaunas, Lithuania.
3 National Food and Veterinary Risk Assessment Institute, J. Kairiukscio str. 10, Vilnius, Lithuania.
4 Department of Animal Breeding and Nutrition, Faculty of Animal Husbandry Technology, Lithuanian University of Health Sciences, Tilzes str. 18, Kaunas, Lithuania.
5 Faculty of Medicine, Lithuanian University of Health Sciences, A. Mickeviciaus str. 9, Kaunas, Lithuania.
6 Faculty of Veterinary Medicine, Institute of Microbiology and Virology, Lithuanian University of Health Sciences, Tilzes str. 18, Kaunas, Lithuania.