1. Laboratory of Veterinary Embryology and Biotechnology (VETEMBIO), College of Veterinary Medicine, Chungbuk National University, Cheongju 361-763, Chungbuk, Republic of Korea
2. Wild Animal Rescue, Gyeonggi Livestock and Veterinary Service, Gyeonggi 17710, Republic of Korea
3. Laboratory of Theriogenology, College of Veterinary Medicine, Kangwon National University, Kangwon 200-701, Republic of Korea