지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2017.1
- 수록면
- 201 - 208 (8page)
이용수
초록· 키워드
오류제보하기
BVDV causes significant infections in ruminants, resulting in reproductive disorders, diarrhea, reduced milk production and enormous damage to farms. In particular, identification and culling of persistent infectious calf is an important task to eliminate infectious nidus in cattle households. However, studies on physiological characteristics of PI bull are still insufficient to understand reproductive effects of BVDV. In this study, one PI bull was confirmed in herd and complete blood analysis was performed.
The lymphocyte count of PI at age 4 was below the normal range and the number of WBCs was also in the lower level of normal range in blood. The sperm number produced by PI male becomes lower and the viability of fresh sperm comes to poor with ages (P＜0.05). The sperm abnormality was also increased, especially in nuclear vacuoles of head and droplets of midpeace (P＜0.05). The PI male becomes infertile due to poor semen quality at age 4. With these results, we concluded that BVDV in PI bull cause decreased sperm cell and abnormality in semen so causes infertility. However, it appears that BVDV could not be transmitted by indirect contact of PI bull, because there was no evidence of BVDV infection in the herd, when regular vaccination program was applied.
목차
등록된 정보가 없습니다.
참고문헌 (24)
참고문헌 신청
Baker JC / 1995 / The clinical manifestation of bovine viral diarrhea infection / Vet clin North Am Food Anim Pract 11 : 425 ~ 445
Barth AD / 1989 / Abnormal Morphology of Bovine Spermatozoa / Iowa State University Press : 285 ~
Bielefeldt-Ohmann H / 1988 / BVD virus antigens in tissues of persistently viraemic, clinically normal cattle: implication for the pathogenesis of clinically fatal disease /
Brock KV / 1998 / Changes in levels of viremia in cattle persistently infected with bovine viral diarrhea virus / J Vet Diagn Invest 10 : 22 ~ 26
Brownlie J / 1987 / Pathogenesis and epidemiology of bovine virus diarrhoea virus infection of cattle / Ann Rech Vet 18 : 157 ~ 166
Barth AD / 1989 / Abnormal Morphology of Bovine Spermatozoa / Iowa State University Press : 285 ~
Bielefeldt-Ohmann H / 1988 / BVD virus antigens in tissues of persistently viraemic, clinically normal cattle: implication for the pathogenesis of clinically fatal disease /
Brock KV / 1998 / Changes in levels of viremia in cattle persistently infected with bovine viral diarrhea virus / J Vet Diagn Invest 10 : 22 ~ 26
Brownlie J / 1987 / Pathogenesis and epidemiology of bovine virus diarrhoea virus infection of cattle / Ann Rech Vet 18 : 157 ~ 166
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