1. Department of Animal Reproduction Biotechnology and Environmental Hygiene, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology, 71-270 Szczecin, Poland
2. Laboratory of Biostatistics, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology, 71-270 Szczecin, Poland
3. Department of Animal Anatomy, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology, 71-270 Szczecin, Poland