1. Department of Veterinary Obstetrics, College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Korea.
2. Gyeongnam Department of Environment & Toxicology, Korea Institute of Toxicology, Munsan 52834, Korea.
3. Department of Veterinary Obstetrics, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Korea.
4. Research Institute of Life Sciences, Gyeongsang National University, Jinju 52828, Korea.