1. Sub-department of Internal Diseases of Farm Animals and Horses, University of Life Sciences in Lublin, Głęboka 30, 20-612 Lublin, Poland
2. Sub-department of Clinical Diagnostics and Veterinary Dermatology, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Głęboka 30, 20-612 Lublin, Poland
3. Student, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Lublin, Poland