1. University Centre of Veterinary Medicine UJ-UR , Al. Mickiewicza 24/28, 30-059 Kraków , Poland
2. Department of Biomaterials and Composites, Faculty of Materials Science and Ceramics , University of Science and Technology , Al. Mickiewicza 30, 30-059 Kraków , Poland
3. Chair of Pathomorphology, Collegium Medicum , Jagiellonian University , Grzegórzecka 16, 30-332 Kraków , Poland
4. Artvimed Centre for Reproductive Medicine , Legendy 3, 30-147 Kraków , Poland
5. Department of Reproductive Biotechnology and Cryoconservation , National Research Institute of Animal Production , 32-083 Balice n. Kraków , Poland