Se realizó una revisión sistemática de literatura en las bases datos Science Direct, PubMed, SciELO, EBSCO host, Redalyc, ProQuest y Google Scholar, seguida de un metaanálisis para estimar la prevalencia combinada de Salmonella spp en canales de cerdos en plantas de beneficio del país. Se recopilaron 3007 artículos científicos, informes técnicos, trabajos de grado y presentaciones de reuniones técnicas publicados entre 2009 y 2020. Se retiraron aquellos que no cumplían con los criterios de inclusión. Se revisaron 51 estudios en detalle, seleccionando 11 documentos que se emplearon en el metaanálisis. La prevalencia combinada de Salmonella spp en canales de cerdo fue de 9.7% (4.0-16.2%). El metaanálisis mostró una alta heterogeneidad en las prevalencias. El bajo número de reportes relacionados con la prevalencia de Salmonella en plantas de beneficio porcino puso en evidenci...

The aim of this study was to evaluate three processes for the removal of organic matter and inactivation of Salmonella spp re inoculated in water from pig farms. Specific water samples were obtained to perform physical, chemical and microbiological characterization. Next, the operating conditions that favored the photolysis process were selected through a 2x2 factorial design. Finally, inactivation/removal kinetics were carried out, assessing UV254 nm photolysis, UV254 nm photolysis with hydrogen peroxide H2O2 at 15 ppm and hydrogen peroxide H2O2 at 15 ppm. The inactivation of Salmonella spp was favored by using an aeration of 1 L/min and with a concentration of Salmonella spp of 1x104 UFC/ml obtaining an inactivation of 97.3±1.9% after 10 minutes of treatment. On the other hand, for the inactivation kinetics it was established that the best treatments were photolysis and photolysis/H2O...

The aim of this study was to evaluate three processes for the removal of organic matter and inactivation of Salmonella spp re inoculated in water from pig farms. Specific water samples were obtained to perform physical, chemical and microbiological characterization. Next, the operating conditions that favored the photolysis process were selected through a 2x2 factorial design. Finally, inactivation/removal kinetics were carried out, assessing UV254 nm photolysis, UV254 nm photolysis with hydrogen peroxide H2O2 at 15 ppm and hydrogen peroxide H2O2 at 15 ppm. The inactivation of Salmonella spp was favored by using an aeration of 1 L/min and with a concentration of Salmonella spp of 1x104 UFC/ml obtaining an inactivation of 97.3±1.9% after 10 minutes of treatment. On the other hand, for the inactivation kinetics it was established that the best treatments were photolysis and photolysis/H2O...

El objetivo del presente trabajo fue determinar la presencia de anticuerpos frente a rotavirus en sueros de porcinos obtenidos de granjas semitecnificadas de Cundinamarca, Colombia. Se procesaron 170 muestras de varios grupos etarios, utilizando el estuche de ELISA para diagnóstico Ingezim Rotavirus Porcino (Ingenasa®). Se detectó la presencia de anticuerpos frente a Rotavirus en el 78.82% de las muestras. Se concluye que los animales pudieron haber estado en contacto con el virus en algún momento de su ciclo productivo, lo que sugiere la necesidad de mejoras en el control y prevención de la infección.

The aim of this study was to determine the presence of antibodies against rotavirus in pig sera obtained from semi-technical farms in Cundinamarca, Colombia. For this, 170 samples from various age groups were processed, using the Porcine Ingezim Rotavirus (Ingenasa®) diagnostic ELISA kit. The presence of antibodies against Rotavirus was detected in 78.82% of the samples. It is concluded that the animals may have been in contact with the virus at some point in their production cycle, which suggests the need for improvements in the control and prevention of infection.