7 research outputs found
Stochastic estimation of seroprevalence against <i>Ornithobacterium rhinotracheale</i> and avian pneumovirus among chickens in Argentina
The objective of this study was to estimate the true prevalence of seropositive individual chicken against Ornithobacterium rhinotracheale and avian pneumovirus in Argentina, using the Rogan-Gladen estimator in combination with Bayesian inference. Chicken runs existed in 21 and 20 different towns in Buenos Aires and Entre Rios Provinces in Argentina for Ornithobacterium rhinotracheale and avian pneumovirus seroprevalence, respectively, were studied. lndividual-chicken sera were analyzed using a commercial enzyme-linked immunosorbent assay. The 719 (for testing Ornithobacterium rhinotracheale) and 933 (for testing avian pneumovirus) chickens were investigated. The overall true seroprevalence was 62.6% [95% Bayesian Credible lntelval (BCI): 37.6-84.5%] and 8.0% (95% BCI: 14.185%) against Ornithobacterium rhinotracheale and avian pneumovirus, respectively.Facultad de Ciencias Veterinaria
Evidencia serológica de infección por metapneumovirus en aves comerciales de la provincia de Buenos Aires y Entre Ríos (Argentina)
A serological investigation was made in commercial flocks of Buenos Aires and Entre Rios provinces by ELISA technique. The serological evidence of metapneumovirus infection was determined by testing 933 serum samples from broilers flocks and broiler-breeders between March of 2007 and October of 2008. 169 of these samples were positives. The result of this study was analyzed by statistics methods. The conclusion shows a better possibility to obtain positive results in broiler-breeders than in broilers flocks. This is the first report of avian metapneumovirus serological evidence in the Argentinian Republic.Se realizo un relevamiento serológico en aves comerciales de las provincias de Buenos Aires y Entre Ríos mediante la técnica de ELISA. La evidencia serológica de la infección con metapneumovirus se determino procesando 933 sueros provenientes de pollos parrilleros y gallinas reproductoras, desde el mes de marzo del año 2007 al mes de octubre del año 2008, de los cuales 169 fueron positivos. Estos resultados fueron analizados mediante métodos estadísticos arribando a la conclusión de que existe mayor probabilidad de obtener aves seropositivas en la categoría de reproductores que en la de pollos parrilleros. Así mismo se demuestra por primera vez la evidencia de serología positiva contra metapneumovirus de la República Argentina
Serological evidence of infection with metapneumovirus in commercial flocks in the provinces of Buenos Aires and Entre Rios (Argentina)
Se realizo un relevamiento serológico en aves comerciales de las provincias de Buenos Aires y Entre Ríos mediante la técnica de ELISA. La evidencia serológica de la infección con metapneumovirus se determino procesando 933 sueros provenientes de pollos parrilleros y gallinas reproductoras, desde el mes de marzo del año 2007 al mes de octubre del año 2008, de los cuales 169 fueron positivos. Estos resultados fueron analizados mediante métodos estadísticos arribando a la conclusión de que existe mayor probabilidad de obtener aves seropositivas en la categoría de reproductores que en la de pollos parrilleros. Así mismo se demuestra por primera vez la evidencia de serología positiva contra metapneumovirus de la República Argentina.A serological investigation was made in commercial flocks of Buenos Aires and Entre Rios provinces by ELISA technique. The serological evidence of metapneumovirus infection was determined by testing 933 serum samples from broilers flocks and broiler-breeders between March of 2007 and October of 2008. 169 of these samples were positives. The result of this study was analyzed by statistics methods. The conclusion shows a better possibility to obtain positive results in broiler-breeders than in broilers flocks. This is the first report of avian metapneumovirus serological evidence in the Argentinian Republic.Facultad de Ciencias Veterinaria
Stochastic estimation of seroprevalence against <i>Ornithobacterium rhinotracheale</i> and avian pneumovirus among chickens in Argentina
The objective of this study was to estimate the true prevalence of seropositive individual chicken against Ornithobacterium rhinotracheale and avian pneumovirus in Argentina, using the Rogan-Gladen estimator in combination with Bayesian inference. Chicken runs existed in 21 and 20 different towns in Buenos Aires and Entre Rios Provinces in Argentina for Ornithobacterium rhinotracheale and avian pneumovirus seroprevalence, respectively, were studied. lndividual-chicken sera were analyzed using a commercial enzyme-linked immunosorbent assay. The 719 (for testing Ornithobacterium rhinotracheale) and 933 (for testing avian pneumovirus) chickens were investigated. The overall true seroprevalence was 62.6% [95% Bayesian Credible lntelval (BCI): 37.6-84.5%] and 8.0% (95% BCI: 14.185%) against Ornithobacterium rhinotracheale and avian pneumovirus, respectively.Facultad de Ciencias Veterinaria
Serological evidence of infection with <i>Ornithobacterium rhinotracheale</i> (ORT) in commercial flocks in the provinces of Buenos Aires and Entre Rios (Argentina)
Se realizó un relevamiento serológico en aves comerciales de las provincias de Buenos Aires y Entre Ríos mediante la técnica de ELISA. La evidencia serológica de la infección con ORT se determinó procesando 739 sueros provenientes de pollos parrilleros y gallinas reproductoras, desde el mes de marzo del año 2007 al mes de octubre del año 2008, de los cuales 345 fueron positivos. Estos resultados fueron analizados mediante métodos estadísticos arribando a la conclusión de que existe mayor probabilidad de obtener aves seropositivas en la categoría de reproductores que en la de pollos parrilleros.A serological investigation was made in commercial flocks of Buenos Aires and Entre Rios provinces by ELISA technique. The serological evidence of ORT infection was determined by testing 729 serum samples from broilers flocks and broiler-breeders between March of 2007 and October of 2008. 345 of these samples were positives. The result of this study was analyzed by statistics methods. The conclusion shows a better possibility to obtain positive results in broiler-breeders than in broilers flocks.Facultad de Ciencias Veterinaria
Serological evidence of infection with <i>Ornithobacterium rhinotracheale</i> (ORT) in commercial flocks in the provinces of Buenos Aires and Entre Rios (Argentina)
Se realizó un relevamiento serológico en aves comerciales de las provincias de Buenos Aires y Entre Ríos mediante la técnica de ELISA. La evidencia serológica de la infección con ORT se determinó procesando 739 sueros provenientes de pollos parrilleros y gallinas reproductoras, desde el mes de marzo del año 2007 al mes de octubre del año 2008, de los cuales 345 fueron positivos. Estos resultados fueron analizados mediante métodos estadísticos arribando a la conclusión de que existe mayor probabilidad de obtener aves seropositivas en la categoría de reproductores que en la de pollos parrilleros.A serological investigation was made in commercial flocks of Buenos Aires and Entre Rios provinces by ELISA technique. The serological evidence of ORT infection was determined by testing 729 serum samples from broilers flocks and broiler-breeders between March of 2007 and October of 2008. 345 of these samples were positives. The result of this study was analyzed by statistics methods. The conclusion shows a better possibility to obtain positive results in broiler-breeders than in broilers flocks.Facultad de Ciencias Veterinaria