Assessing the Seroprevalence Against Avian Pneumovirus and Ornithobacterium rhinotracheale in Broilers in Uruguay
DOI:
https://doi.org/10.3923/ijps.2010.490.494Keywords:
APV, bayesian model, ORTAbstract
The objective of this study was to estimate the true prevalence of individual chickens serologically test-positive against avian pneumovirus and Ornithobacterium rhinotracheale in Uruguay. Seventeen different broiler farms existed in three different provinces in Uruguay were recruited and the 1861 broilers were investigated. Individual-chicken sera were analyzed using a commercial enzyme-linked immunosorbent assay. The overall true seroprevalence was 1.9% [95% Bayesian Credible Interval (BCI): <1-7.4%] and less than 0.1% (95% BCI: 0-<0.1%) against avian pneumovirus and Ornithobacterium rhinotracheale, respectively. The result seroprevalence was relatively lower than that reported by other authors in a neighbouring country Argentina where the infection of these diseases was recently observed. This difference was discussed.
References
Baadsgaard, N.P. and E. Jogensen, 2003. A bayesian approach to the accuracy of clinical observations. Prev. Vet. Med., 59: 189-206.
Bisgaard, M., A.M. Bojesen, J.P. Christensen, P. Mark, F.M. Paul, M.B. Janet and J.A. Dennis, 2008. Infections Caused by Species of Pasteurellaceae, Ornithobacterium and Riemerella: An Introduction. 6th Edn., W.B. Saunders, Edinburgh, pp: 146-148.
Cook, J.K.A., 2000. Avian pneumovirus infections of turkeys and chickens. Vet. J., 160: 118-125.
Cook, J.K.A. and D. Cavanagh, 2002. Detection and differentiation of avian pneumoviruses (metapneumoviruses). Avian Pathol., 31: 117-132.
Cook, J.K.A., C.A. Dolby, D.J. Southee and A.P.A. Mockett, 1988. Demonstration of antibodies to turkey rhinotracheitis virus in serum from commercially reared flocks of chickens. Avian Pathol., 17: 403-410.
Dohoo, I., W. Martin and H. Stryhn, 2003. Veterinary Epidemiologic Research. 1st Edn., AVC Inc., Canada, ISBN: 0-919013-41-4.
Giossa, G., K. Suzuki, M. Petruccelli, G. Rodriguez, G. Trenchi and H. Trenchi, 2010. Flock-level seroprevalence against avian pneumovirus amongst Uruguayan broiler chickens. Int. J. Poult. Sci., 9: 217-220.
Gough, R.E., 2005. Poultry: Avian Pneumovirus. In: The Merck Veterinary Manual, Kahn, C.M. (Ed.). 9th Edn., Merck and Co., Whitehouse Station, pp: 2299-2300.
Hintze, J., 2008. PASS 2008 Software. NCSS, Kaysville, UT, USA.
IDEXX, 2002. IDEXX ORT test kit detects all serotypes in chicken and Turkey serum. http://www.idexx.com/pubwebresources/pdf/en_us/ livestock-poultry/0962896.pdf.
IDEXX, 2004. Effective tool for monitoring avian pneumovirus in chicken and Turkey flocks. http://www.idexx.com/pubwebresources/pdf/ en_us/livestock-poultry/6478800m.pdf.
Lunn, D.J., A. Thomas, N. Best and D. Spiegelhalter, 2000. WinBUGS-a Bayesian modelling framework: Concepts, structure and extensibility. Stat. Comput., 10: 325-337.
Ministerio de Ganaderia Agricultura Pesca, 2010. Division contralor de semovientes (DI.CO.SE.). Unidad de Monitoreo Avicola. Montevideo. http://www.mgap.gub.uy/dgsg/DICOSE/UMA/UMA.htm
Rogan, W.J. and B. Gladen, 1978. Estimating prevalence from results of a screening-test. Am. J. Epidemiol., 107: 71-76.
Uriarte, J., K. Suzuki, J. Origlia, D. Gornatti and M. Piscopo et al., 2010. Stochastic estimation of seroprevalence against Ornithobacterium rhinotracheale and avian pneumovirus among chickens in Argentina. Int. J. Poult. Sci., 9: 352-356.
Van Empel, P., P. Mark, F.M. Paul, M.B. Janet and J.A. Dennis, 2008. Ornithobacterium rhinotracheale Poultry Diseases. 6th Edn., W.B. Saunders, Edinburgh, pp: 164-171.
Vose, D., 2008. Risk Analysis: A Quantitative Guide. 3rd Edn., Wiley, Chichester, UK. Pages: 752.
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