1. Department of Clinical Science, Faculty of Veterinary Medicine, University of Tabriz, Tabriz, Iran.
2. Department of Theriogenology, Faculty of Veterinary Medicine, Tehran University, Tehran, Iran.
3. Department of Anatomical Science, School of Medicine, Urmia University of Medical Sciences, Urmia, Iran.
4. Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Selcuk University, Konya, Turkey.