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2013 | 57 | 4 |

Tytuł artykułu

Investigation of risk factors associated with infections caused by small ruminant lentiviruses

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
An epidemiological study was conducted to identify risk factors related to small ruminant lentivirus (SRLV) infection in the central region of Spain. Between October 1998 and October 2000, a total of 194 sheep from 10 flocks and 163 goats from three flocks were tested for SRLV antibodies, resulting in 65.5% and 8.0% of seroprevalence, respectively. The relationship between differences in prevalence of SRLV, geographical location of the flock, and possible factors related to the flock that could enhance transmission were studied. Results of multivariable analysis showed an association between SRLV infection and geographical location of the flock and the rearing system. In addition, the differences in the productivity between infected and non-infected animals were explored. The productivity parameters were measured in 62 sheep and 28 goats. All productivity parameters studied (milk production, number of milking days, and lambing rate) appeared to be reduced in the SRLV-seropositive group in both goats and sheep. Even though, these differences were not statistically significant, it seems that animals infected are less productive than these non-infected. Statistical analyses comparing infected and non-infected sheep showed no statistical relationship between SRLV infection and milk quality.

Słowa kluczowe

Wydawca

-

Rocznik

Tom

57

Numer

4

Opis fizyczny

p.473-478,ref.

Twórcy

autor
  • Departamento Sanidad Animal, Facultad de Veterinaria, Universidad Complutense de Madrid, 28040 Madrid, Spain
  • Departamento Sanidad Animal, Facultad de Veterinaria, Universidad Complutense de Madrid, 28040 Madrid, Spain
autor
  • Departamento Sanidad Animal, Facultad de Veterinaria, Universidad Complutense de Madrid, 28040 Madrid, Spain
autor
  • Departamento Sanidad Animal, Facultad de Veterinaria, Universidad Complutense de Madrid, 28040 Madrid, Spain
autor
  • Departamento Sanidad Animal, Facultad de Veterinaria, Universidad Complutense de Madrid, 28040 Madrid, Spain
  • Departamento Sanidad Animal, Facultad de Veterinaria, Universidad Complutense de Madrid, 28040 Madrid, Spain
  • Departamento Sanidad Animal, Facultad de Veterinaria, Universidad Complutense de Madrid, 28040 Madrid, Spain
autor
  • Departamento Sanidad Animal, Facultad de Veterinaria, Universidad Complutense de Madrid, 28040 Madrid, Spain

Bibliografia

  • 1. Arsenault J., Dubreuil P., Girard C., Simard C., Belanger D.: Maedi-visna impact on productivity in Quebec sheep flocks (Canada). Prev Vet Med 2003, 59, 125-137.
  • 2. Barquero N., Ariona A., Domenech A., Toural C., de las Heras A., Femandez-Garayzabal J.F., Ruiz-Santa Quiteria J.A., Gomez-Lucia E.: Diagnostic performance of PCR and ELISA for SRILV in blood and milk samples along with a serological survey of SRILV in the central zone of Spain. Vet Rec 2011, 168, 20-23.
  • 3. Berriatua E., Alvarez V., Extramiana B., Gonzalez L., Daltabuit M., Juste R.: Transmission and control implications of seroconversion to Maedi-Visna virus in Basque dairy-sheep flocks. Prev Vet Med 2003, 60, 265-279.
  • 4. Blacklaws B.A., Berriatua E., Torsteinsdottir S., Watt N.J., de Andres D., Klein D., Harkiss G.D.: Transmission of small ruminant lentivimses. Vet Microbiol 2004, 101,199-208.
  • 5. Brinkhof J.M., Houwers D.J., Moll L., Dercksen D., van Maanen C.: Diagnostic performance of ELISA and PCR in identifying SRLV-infected sheep and goats using serum, plasma and milk samples and in early detection of infection in dairy flocks through bulk milk testing. Vet Microbiol 2010, 142, 193-198.
  • 6. Cutlip R.C., Lehmkuhl H.D., Brogden K.A., Sacks J.M.: Breed susceptibility to ovine progressive pneumonia (maedi/visna) virus. Vet Microbiol 1986, 12, 283-288.
  • 7. Dawson M., Wilesmith J.W.: Serological survey of lentivirus (maedi-visna/caprine arthritis-encephalitis) infection in British goat herds. Vet Rec 1985, 117, 86-89.
  • 8. Dohoo I.R., Heaney D.P., Stevenson R.G., Samagh B.S., Rhodes C.S.: The effect of maedi visna virus infection on productivity in ewes. Prev Vet Med 1987, 4, 471-484.
  • 9. Dungu B., Vorster J., Bath G.F., Verwoerd D.W.: The effect of a natural maedi-visna virus infection on the productivity of South African sheep. Onderstepoort J Vet Res 2000, 67, 87-96.
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  • 11. Las Heras A., Domínguez L., Fernández-Garayzábal J.F.: Prevalence and aetiology of subclinical mastitis in dairy ewes of the Madrid region. Small Rum Res 1999, 32, 21-29.
  • 12. Leginagoikoa I., Juste R.A., Barandika J., Amorena B., De Andres D., Lujan L., Badiola J., Berriatua E.: Extensive rearing hinders Maedi-Visna Virus (MW) infection in sheep. Vet Res 2006, 37, 767-778.
  • 13. Leginagoikoa I., Minguijon E., Juste R.A., Barandika J., Amorena B., de Andres D., Badiola J.J., Lujan L., Berriatua E.: Effects of housing on the incidence of visna/maedi virus infection in sheep flocks. Res Vet Sci 2010, 88, 415-421.
  • 14. Leitner G., Krifucks O., Weisblit L., Lavi Y., Bernstein S., Merin U.: The effect of caprine arthritis encephalitis virus infection on production in goats: Vet J 2010, 183, 328-331.
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  • 16. Mazzei M., Carrozza M.L., Bandecchi P., Mazzanti G., Mannelli A., Tolari F.: Evaluation of an ELISA to detect antibodies to maedi-visna virus in individual and pooled samples of milk from sheep. Vet Rec 2005, 157, 552-555.
  • 17. Narayan O., Sheffer D., Clements J.E., Tennekoon G.: Restricted replication of lentiviruses. Visna viruses induce a unique interferon during interaction between lymphocytes and infected macrophages. J Exp Med 1985, 162, 1954-1969.
  • 18. Nord K.: CAEV infection does not affect prevalence of bacterial mastitis in goats: Acta Vet Scand 1997, 38, 197-199.
  • 19. Pekelder J.J., Veenink G.J., Akkermans J.P., van Eldik P., Elving L., Houwers D.J.: Ovine lentivirus induced indurative lymphocytic mastitis and its effect on the growth of lambs. Vet Rec 1994, 134, 348-350.
  • 20. Perez M., Biescas E., de Andres X., Leginagoikoa I., Salazar E., Berriatua E., Reina R., Bolea R., de Andres D., Juste R.A., Cancer J., Gracia J., Amorena B., Badiola J.J., Lujan L.: Visna/maedi virus serology in sheep: Survey, risk factors and implementation of a successful control programme in Aragon (Spain). Vet J 2009, 186, 221-225.
  • 21. Peterson K., Brinkhof J., Houwers D.J., Colenbrander B., Gadella B.M.: Presence of pro-lentiviral DNA in male sexual organs and ejaculates of small ruminants, Theriogenology 2008, 69, 433 442.
  • 22. Reina R., Berriatua E., Lujan L., Juste R., Sanchez A., de Andres D., Amorena B.: Prevention strategies against small ruminant lentiviruses: an update. Vet J 2009, 182, 31-37.
  • 23. Saman E., Van Eynde G., Lujan L., Extramiana B., Harkiss G., Tolari F., Gonzalez L., Amorena B., Watt N., Badiola J.: A new sensitive serological assay for detection of lentivirus infections in small ruminants. Clin Diag Vet Lab 1999, 6, 734-740.
  • 24. Sigurdardottir B., Thormar H.: Isolation of a viral agent from the lungs of sheep affected with Maedi. J Infect Dis 1964, 114, 55 -60.
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  • 27. Turin L., Pisoni G., Giannino M.L., Antoníni M., Rosati S., Ruffo G., Moroni P.: Correlation between milk parameters in CAEV seropositive and negative primiparous goats during an eradication program in Italian farm. Small Rum Res 2005, 57, 73-79.

Typ dokumentu

Bibliografia

Identyfikatory

Identyfikator YADDA

bwmeta1.element.agro-88483f2a-af51-40bf-ade9-233321133404
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