1. Department of Anatomy, Poznań University of Medical Science , Poznań , Poland
2. Division of Perinatology and Women’s Diseases, Poznań University of Medical Sciences , Poznań , Poland
3. Department of Histology and Embryology, Poznań University of Medical Science , Poznań , Poland
4. Division of Infertility and Reproductive Endocrinology, Department of Gynecology, Obstetrics and Gynecological Oncology, Poznań University of Medical Sciences , Poznań , Poland
5. Department of Basic and Preclinical Sciences, Institute of Veterinary Medicine, Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University in Toruń , Toruń , Poland
6. Department of Diagnostics and Clinical Sciences, Institute of Veterinary Medicine, Nicolaus Copernicus University in Toruń , Toruń , Poland
7. Department of Veterinary Surgery, Institute of Veterinary Medicine, Nicolaus Copernicus University in Toruń , Toruń , Poland
8. Prestage Department of Poultry Science, North Carolina State University , Raleigh, NC , USA
9. Physiology Graduate Program, North Carolina State University , Raleigh, NC , USA