1. Department of Animal Breeding and Husbandry, Faculty of Veterinary Medicine, Istanbul University-Cerrahpasa, 34500 Istanbul, Turkey
2. Department of Animal Breeding and Husbandry, Institute of Graduate Studies, Istanbul University-Cerrahpasa, 34500 Istanbul, Turkey
3. Department of Animal Medicine, Production and Health, University of Padova, 35122 Padova, Italy