1. Department of Obstetrics and Gynecology, Faculty of Veterinary Medicine, Yuzuncu Yil University, Van, Turkey
2. Department of Animal Science, Faculty of Agriculture, Osmangazi University, Eskişehir, Turkey
3. Department of Obstetrics and Gynecology, Faculty of Veterinary Medicine, Çukurova University, Adana, Turkey
4. Department of Histology and Embryology, Faculty of Veterinary Medicine, Yuzuncu Yil University, Van, Turkey
5. Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Yuzuncu Yil University, Van, Turkey
6. Department of Obstetrics, Small Animal Clinic of the University of Giessen, Gynaecology and Andrology, Giessen, Germany