1. Department of Pathology and Veterinary Diagnostics; Faculty of Veterinary Medicine; Warsaw University of Life Sciences (WULS-SGGW); Nowoursynowska 159c 02-776 Warsaw Poland
2. Department of Pharmacology and Toxicology; Faculty of Veterinary Medicine; University of Warmia and Mazury in Olsztyn; Oczapowskiego 2 10-719 Olsztyn Poland
3. Institute of Animal Reproduction and Food Research; Polish Academy of Sciences; Tuwima 10 10-747 Olsztyn Poland