Authors
Joanna Romanek
Department of Biotechnology of Reproduction and Cryopreservation, National Research Institute of Animal Production, 32-083 Balice n., Kraków, Poland
Jolanta Opiela
Department of Biotechnology of Reproduction and Cryopreservation, National Research Institute of Animal Production, 32-083 Balice n., Kraków, Poland
Zdzisław Smorąg
Department of Biotechnology of Reproduction and Cryopreservation, National Research Institute of Animal Production, 32-083 Balice n., Kraków, Poland