1. Department of Obstetrics and Gynecology Faculty of Veterinary Medicine University of Balıkesir Balıkesir Turkey
2. Uluova Dairy Farm Canakkale Turkey
3. Department of Obstetrics and Gynecology Faculty of Veterinary Medicine University of Bursa Uludag Bursa Turkey
4. Department of Obstetrics and Gynecology Faculty of Veterinary Medicine University of Siirt Siirt Turkey
5. Department of Zootechnics Faculty of Veterinary Medicine University of Bursa Uludag Bursa Turkey