1. Department of Animal Anatomy and Histology, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Akademicka 12, 20-950 Lublin, Poland
2. Department of Animal Physiology, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Akademicka 12, 20-950 Lublin, Poland
3. Department of Biophysics, Faculty of Environmental Biology, University of Life Sciences in Lublin, Akademicka 13, 20-950 Lublin, Poland
4. Department of Functional Anatomy and Cytobiology, Faculty of Biology and Biotechnology, Maria Curie-Sklodowska University, Akademicka St. 19, 20-033 Lublin, Poland
5. Department of Animal Reproduction, Anatomy and Genomics, University of Agriculture in Cracow, Mickiewicza Alley 24/28, 30-059 Cracow, Poland
6. Department of Animal Genetics, Breeding and Ethology, Faculty of Animal Sciences, University of Agriculture in Cracow, Mickiewicza Alley 24/28, 30-059 Cracow, Poland