1 Department of Applied Animal Science, Kangwon National University, Chuncheon, 24341, Republic of Korea.
2 Department of Obstetrics, Gynecology and Women's Health, University of Missouri, Columbia, 65201, USA.
3 College of Veterinary Medicine, Kangwon National University, Chuncheon, 24341, Republic of Korea. Electronic address: eslee@kangwon.ac.kr.
4 Department of Applied Animal Science, Kangwon National University, Chuncheon, 24341, Republic of Korea; Kustogen, Chuncheon, 24341, Republic of Korea. Electronic address: stlee76@kangwon.ac.kr.