Affiliation: | 1. Faculty of Veterinary Medicine, Department of Morphological Sciences, Warsaw University of Life Sciences, Warsaw, Poland;2. Faculty of Veterinary Medicine, Department of Pathology and Veterinary Diagnostics, Warsaw University of Life Sciences, Warsaw, Poland;3. Faculty of Veterinary Medicine, Department of Reproduction and Clinic of Farm Animals, Wroclaw University of Environmental and Life Sciences, Wroclaw, Poland;4. Faculty of Veterinary Medicine, Department of Food Hygiene and Public Health Protection, Warsaw University of Life Sciences, Warsaw, Poland;5. Faculty of Animal Science, Department of Genetics and Animal Breeding, Warsaw University of Life Sciences, Warsaw, Poland;6. Faculty of Veterinary Medicine, Department of Immunology, Pathophysiology and Prevention Veterinary, Wroclaw University of Environmental and Life Sciences, Wroclaw, Poland |