1. University Centre of Veterinary Medicine, University of Agriculture in Krakow, Mickiewicza 24/28, 30-059 Krakow, Poland
2. Department of Biomaterials, Faculty of Materials Science and Ceramics, University of Science and Technology, Mickiewicza 30, 30-059 Krakow, Poland
3. Chair of Pathomorphology, Collegium Medicum, Jagiellonian University, Grzegorzecka 16, 30-526 Krakow, Poland
4. Artvimed Centre for Reproductive Medicine, Czyzowka 14, 30-526 Krakow, Poland
5. Department of Reproductive Biotechnology and Cryoconservation, National Research Institute of Animal Production, Krakowska 1, 30-322 Balice/Krakow, Poland