1. Department of Anatomy , Poznań University of Medical Sciences , Poznań , Poland
2. Department of Histology and Embryology , Poznań University of Medical Sciences , Poznań , Poland
3. Department of Basic and Preclinical Sciences, Institute of Veterinary Medicine, Faculty of Biological and Veterinary Sciences , Nicolaus Copernicus University in Toruń , Toruń , Poland
4. Prestage Department of Poultry Science , North Carolina State University , Raleigh , NC , USA
5. Department of Obstetrics and Gynecology , University Hospital and Masaryk University , Brno , Czech Republic
6. Department of Veterinary Sciences , Czech University of Life Sciences in Prague , Prague , Czech Republic
7. Department of Clinical Sciences and Diagnostics , Institute of Veterinary Medicine, Nicolaus Copernicus University in Toruń , Toruń , Poland
8. Physiology Graduate Program , North Carolina State University , Raleigh , NC , USA
9. Department of Biomaterials and Experimental Dentistry , Poznań University of Medical Sciences , Poznań , Poland