1. Department of Obstetrics and Gynecology, Faculty of Veterinary Medicine, University of Ondokuz Mayis, Samsun 55200, Turkey.
2. Department of Pathology, Faculty of Veterinary Medicine, University of Ondokuz Mayis, Samsun 55200, Turkey.
3. Department of Obstetrics and Gynecology, Faculty of Veterinary Medicine, University of Kafkas, Kars 36000, Turkey.
4. Department of Obstetrics and Gynecology, Faculty of Veterinary Medicine, University of Mehmet Akif Ersoy, Burdur 15030, Turkey.
5. Department of Obstetrics and Gynecology, Faculty of Veterinary Medicine, University of Dicle, Diyarbakır 21830, Turkey.
6. Department of Obstetrics and Gynecology, Faculty of Veterinary Medicine, University of Harran, Urfa 63300, Turkey.
7. Centre for Artificial Insemination and Embryo Transfer, University of Veterinary Medicine Vienna, Vienna A-1210, Austria.
8. Department of Obstetrics and Gynecology, Faculty of Veterinary Medicine, University of Ankara, Ankara 06100, Turkey.