The effect of a natural maedi-visna virus infection on the productivity of South African sheep

Onderstepoort Journal of Veterinary Research

Volumn 67, Issue 2, 2000, Pages 87-96

  Dungu, B ^a   Vorster, J ^a   Bath, G F ^b   Verwoerd, D W ^a  

^a ONDERSTEPOORT VETERINARY INSTITUTE   (South Africa)

^b UNIVERSITY OF PRETORIA   (South Africa)

Author keywords

Dorper sheep; Lamb growth; Maedi visna virus

Indexed keywords

ANIMALIA; MAEDI-VISNA VIRUS; OVIS; OVIS ARIES; VISNA VIRUS;

VIRUS ANTIBODY;

ANIMAL; ANIMAL DISEASE; ARTICLE; BLOOD; CHEMISTRY; COHORT ANALYSIS; FEMALE; GROWTH DISORDER; IMMUNOLOGY; LYMPHOCYTE; MALE; MASTITIS; MILK; PATHOGENICITY; PATHOLOGY; PATHOPHYSIOLOGY; SHEEP; SHEEP DISEASE; SOUTH AFRICA; UDDER; VIROLOGY; VISNA VIRUS;

ANIMALS; ANTIBODIES, VIRAL; COHORT STUDIES; FEMALE; GROWTH DISORDERS; LYMPHOCYTES; MALE; MAMMARY GLANDS, ANIMAL; MASTITIS; MILK; PNEUMONIA, PROGRESSIVE INTERSTITIAL, OF SHEEP; SHEEP; SOUTH AFRICA; VISNA-MAEDI VIRUS;

EID: 0034195084     PISSN: 00302465     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (36)

1. ANDERSON, B.C., BULGIN, M.S., ADAMS, S. & DUELKE, B. 1985. Firm udder in periparturient ewes with lymphocytic accumulations, retrovirus infection, and milk unavailable at the teat. Journal of the American Veterinary Medicine Association,186:391-393.
2. BOSHOFF, C.H., DUNGU, B., WILLIAMS, R., VORSTER, J., CONRADIE, J.D., VERWOERD, D.W. & YORK, D.F. 1997. Detection of Maedi-Visna virus antibodies using a single fusion transmembrane-core p25 recombinant protein ELISA and a modified receiver-operating characteristic analysis to determine cut-off values. Journal of Virological Methods, 63:47-56.
3. CAMPBELL, J.R., MENZIES, P.I., WALTNER-TOEWS, D., WALTON, J.S., BUCKRELL, B.C. & THORSEN, J. 1994. The seroprevalance of maedi-visna in Ontario sheep flocks and its relationship to flock demographics and management practices. Canadian Veterinary Journal, 35:39-44.
4. CHEMINEAU, P. & CAGNIÉ, Y. 1992. Training manual on artificial insemination in sheep and goats. Rome: Food and Agriculture Organization of the United Nations Publishers.
5. CROSS, R.F, SMITH, C.K. & MOORHEAD, P.D. 1975. Vertical transmission of progressive pneumonia of sheep. American Journal of Veterinary Research, 36:465-468.
6. DAWSON, M. 1980. Maedi visna: a review. Veterinary Records, 106:212-216.
7. DAWSON, M. 1987. Pathogenesis of maedi-visna. Veterinary Records, 120:451-454.
8. DAWSON, M., BIRONT, P. & HOUWERS, D.J. 1982. Comparison of serological tests used in three State veterinary laboratories to identify Maedi-visna virus infection. Veterinary Record, 111:432-434.
9. DE BOER, G.F. 1975. Zwoegerziekte virus, the causative agent for progressive interstitial pneumonia (maedi) and meningoleucoencephalitis (visna) in sheep. Research in Veterinary Science, 18:15-25.
10. DE KOCK, G. 1929. Are lesions of jaagsiekte in sheep of the nature of neoplasm? Fifteenth Annual Report of the Director of Veterinary Services, Union of South Africa: 611-641.
11. DOHOO, J.R., HAENY, D.P., STEVENSON, R.G., SAMAGH, B.S. & RHODES, C.S. 1987. The effects of Maedi-visna infection on productivity in ewes. Preventive Veterinary Medicine, 4:471-484.
12. FOGARTY, N.M. 1995. Genetic parameters for live weight, fat and muscle measurements, wool production and reproduction in sheep: a review. Animal Breed Abstract, 63(3):101-143.
13. GUDNADOTTIR, M. & PALSSON, P.A. 1967. Transmission of maedi by inoculation of a virus grown in tissue culture from maedi-affected lungs. Journal of Infectious Diseases, 117:1-6.
14. HOUWERS, D.J. 1988. Ovine lentivirus infections: aspects of immunology, pathology, epidemiology and control. Ph.D. Thesis. University of Utrecht.
15. HOUWERS, D.J. 1990. Economic importance, epidemiology and control of MVV infection, in Maedi-visna and related diseases. Dordrecht: Kluwer Academic Publishers.
16. HOUWERS, D.J., PEKELDER, J.J., AKKERMANS, J.P.W.M., VAN DER MOLEN, E.J. & SCHREUDER, B.E.C. 1988. Incidence of indurative lymphocytic mastitis in a flock of sheep infected with maedi-visna virus. Veterinary Record, 122:435-437.
17. IDF 1987. Bovine mastitis: definition and guidelines for diagnosis. Bulletin of the International Dairy Federation, 211
18. JOHNSON, L.K., MEYER, A.L. & ZINK, M.C. 1992. Detection of ovine lentivirus in sero-positive sheep by in situ hybridization, PCR, and cocultivation with susceptible cells. Clinical Immunological Immunopathology, 65:254-260.
19. MITCHELL, DT. 1915. Investigation into Jaagsiekte or chronic catarrhal-pneumonia of sheep. Third and Fourth Reports of the Director of Veterinary Research, Union of South Africa: 585-614.
20. OLIVIER, R.E., GORHAM, J.R., PARISH, S.F., HADLOW, W.J. & ARAYAN, O. 1981. Ovine progressive pneumonia: pathologic and virologic studies on the naturally occuring disease. American Journal of Veterinary Research, 42:1554-1559.
21. PALSSON, P.A. 1990. Maedi-visna. History and clinical description, in Maedi-visna and related diseases. Dordrecht: Kluwer Academic Publishers.
22. PAYNE, A.L., YORK, D.F., DE VILLIERS, E.M., VERWOERD, D.W., QUERAT, G., BARBAN, V., SAUZE, N. & VIGNE, R. 1986. Isolation and identification of a South African Lentivirus from Jaagsiekte lungs. Onderstepoort Journal of Veterinary Research, 53:55-62.
23. PEKELDER, J.J., VEENINK, G.J., AKKERMANS, J.P.W.M., VAN ELDIK, P., ELVING, L. & HOUWERS, D.J. 1994. Ovine lentivirus induced indurative lymphocytic mastitis and its effect on the growth of lambs. Veterinary Record, 34:348-350.
24. QUERAT, G., BARBAN, V., SAUZE, N., VIGNE, R., PAYNE, A., YORK, D.F., DE VILLIERS, E. & VERWOERD, D.W. 1987. Characteristics of a novel lentivirus from South African sheep with pulmonary adenocarcinoma (jaagsiekte). Virology, 158: 158-167.
25. SIHVONEN, L. 1981. Early immune response in experimental maedi. Research in Veterinary Science, 30:217-222.
26. SMITH, C. 1992. Ovine Lentivirus: A Real or Imaginary threat? Journal of the American Veterinary Medicine Association, 200: 139-143.
27. SNOWDER, G.D. & GLIMP, H.A. 1989. Effect of ovine progressive pneumonia on ewe milk production. Journal of Animal Science, 67:171.
28. SNOWDER, G.D., GATES, N.L., GLIMP, H.A., GORHAM, J.R. 1990. Prevalence and effect of subclinical ovine progressive pneumonia virus infection on ewe wool and lamb production. Journal of the American Veterinary Medicine Association, 197: 475-479.
29. nd ed. McGraw-Hill Book Company, New York.
30. TUSTIN, R.C. 1969. Ovine jaagsiekte. Journal of the South African Veterinary Medicine Association, 1:3-23.
31. VAN DER MOLEN, E.J. & HOUWERS, D.J. 1988. Indurative lymphocytic mastitis in sheep after experimental infection with maedi-visna virus. Veterinary Quarterly, 9:193-202.
32. VANDERMOLEN, E.J., VECHT, U. & HOUWERS, D.J. 1985. A chronic indurative mastitis in sheep, associated with maedi/ visna virus infection. Veterinary Quarterly, 7:112-119.
33. VORSTER J.H., DUNGU, B., MARAIS, L.C., YORK, D.F., WILLIAMS, R. & BOSHOFF, C.H. 1996. A perspective of Maedi-visna in South Africa. Journal of the South African Veterinary Association, 67(1):2-3.
34. WATT, N.J., MACINTYRE, N., COLLIE, D., SARGAN, D. & McCONNELL, I. 1992. Phenotypic analysis of lymphocyte populations in the lungs and regional lymphoid tissue of sheep naturally infected with maedi-visna virus. Clinical and Experimental Immunology, 90:204-208.
35. WILLIAMS-FULTON, N.R. & SIMARD, C.L. 1989. Evaluation of two management procedures for the control of Maedi-visna. Canadian Journal of Veterinary Research, 53:419-423.
36. YORK, D., DUNGU, B. & DU PLESSIS, D. 1993.The cloning and expression of a maedi-visna virus cross reacting antigen and its use in a sensitive diagnostic assay to detect MVV affected sheep. Proceeding: Biotech SA '93, poster 6.