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Bulletin of the Veterinary Institute in Pulawy

The Journal of National Veterinary Research Institute in Pulawy

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Influence of Small Ruminant Lentivirus Infection on Reproductive Traits in Ewes

Czesława Lipecka1 / 1 / 2 / Tomasz M. Gruszeck1 / Bożena Kozaczyńska2 / Monika Olech2 / Wiktor Bojar1 / Zbigniew Osiński1

1Department of Small Ruminants Breeding and Agriculture Advisor, University of Life Sciences in Lublin, 20-950 Lublin, Poland

2Department of Biochemistry, National Veterinary Research Institute, 24-100 Pulawy, Poland

© 2013. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. (CC BY-NC-ND 3.0)

Citation Information: Bulletin of the Veterinary Institute in Pulawy. Volume 57, Issue 1, Pages 15–18, ISSN (Online) 2300-3235, DOI: 10.2478/bvip-2013-0003, March 2013

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The study included a sheep flock comprising five genetic groups. The ELISA was applied to perform constant monitoring (every six months) for the infection of ewes with small ruminant lentivirus (SRLV). The research results demonstrated a negative effect of SRLVs infection on lamb rearing that, depending on the genetic group, proved to be lower 1.3%-1.4% compared to the seronegative mothers. At relatively equal fertility (94%-100%) and more differentiated prolificacy (179%-198%) in all the examined groups (except the Suffolk breed), a rearing index was higher in the seronegative animals 6.8%-24.1% compared to the seropositive mothers. The Suffolk breed proved to be the genetic group most susceptible to SRLV infection. A prolificacy of infected ewes was 10% lower, a lamb rearing rate was 13% lower , and a general reproductive performance was 18% lower in comparison to healthy ewes.

Keywords: ewes; small ruminant lentiviruses; reproduction performance

  • 1. Arsenault J., Dubreuil P., Girard C.H., Simard C., Belanger D.: Maedi-visna impact on productivity in Quebeck sheep flocks (Canada). Prev Vet Med 2003, 50, 125-137. [Crossref]

  • 2. 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. [Crossref]

  • 3. Brodie S., Concha-Bermejillo A., Snowder G., Demartini J.: Current concepts in the epizootiology, diagnosis and economic importance of ovine progressive pneumonia in North America. Small Ruminant Res 1998, 27, 1-17. [Crossref]

  • 4. Gruszecki T., Lipecka C.: Evaluation of the implementation of national programme for improvement of the sheep prolificacy and plans for the future. Anim Product Review 2002, 6, 10-12.

  • 5. Houwers D.J.: Importance of ewe/lamb relationship and breed in the epidemiology of maedi-visna virus infections. Res Vet Sci 1984, 46, 5-8.

  • 6. Houwers D.J., Van Der Molen E.J.: A five year serological survey of natural transmission of Meadi Visna virus in flock of sheep, completed with postmortem investigation J Vet Med 1987, 34, 421-431.

  • 7. Kędziora A., Junkuszew A., Lipecka C., Gruszecki T.M., Kuźmak J.: Susceptibility of sheep of different genotype to maedi visna virus infection. Med Weter 2005, 61, 943-945.

  • 8. Keen J., Hungerford L., Wittum T., Kwang J., Littledike E.: Risk factors for seroprevalence of ovine lentivirus in breeding ewe flocks in Nebraska USA. Prev Vet Med, 1997, 30, 81-94. [Crossref]

  • 9. Kozaczyńska B., Kuźmak J., Rola M.: Application and evaluation of serological methods in the diagnosis of maedi-visna virus infection in sheep from Poland. Med Weter 2002, 58, 444-447.

  • 10. Lipecka C., Junkuszew A., Kuźmak J., Kozaczyńska B., Gruszecki T.M.: The relations between breed- and ageassociated susceptibility/resistance of sheep infection with maedi visna virus (MVV) Arch Tierz Dummenrstorf 2006, 49, Special Issue 160-165.

  • 11. Salwa A., Węgrzyn G.: Isolating of the maedi virus from sheep in Poland. Med Weter 1993, 49, 298-300.

  • 12. Snowder G.D., Gates N.L., Glimp H.A., Gorham J.R.: Prevalence and effect of subclinical ovine progressive pneumonia virus infection on ewe wool and lamb production. J Aro Vet Med Assoc 1990, 4, 475-479.

  • 13. Straub O.: Maedi-visna virus infection in sheep. History and present knowledge. Comp Immun Microbiol Infect Dis 2004, 27, 1-5.

  • 14. Zadura J., Cąkała S., Roszkowski J.: Progressive sheep pneumonia (Maedi-Visna disease). Med Weter 1975, 31 474.

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