Persistence of pathogens in liquid pig manure processed in manure tanks and biodigesters

摘要: ABSTRACT Objective. To evaluate the persistence of virus, bacteria, mold, yeast and parasites in liquid pig manure, processed biodigesters manure tanks central-western part Colombia. Materials methods. A directed observational study analyzed descriptively was carried out three farms located where were assembled its used. sampling taken to assess presence 26 pathogens at beginning another one end process biodigesters. For tank, a 250 liters tank filled with fresh after days storage. The continuous flow effluents analyzed, according specific hydraulic retention times. diagnostic techniques those recommended specifically for each microorganism certified labs by Colombian Animal Health authority. Results. Of that investigated, 15 appeared used 12 biodigestors. In tanks, Porcine Circovirus type 2 (PCV2), yeast, Salmonella spp., Balantidium coli Strongylids did not persist. biodigesters, PCV2, Strongylids, B. Strongyloides Conclusions. both variation could be seen pathogen persistency, indicating they act as transformation systems removal latter, long storage times are increased if efficiency wants improved. RESUMEN Objetivo. Evaluar la persistencia de bacterias, mohos, levaduras, y parasitos en porcinaza liquida, procesada biodigestores tanques estercoleros el centro–occidente Materiales Metodos. Se realizo un estudio observacion dirigida analizada descriptivamente tres explotaciones porcinas, donde se montaron aprovecharon sus biodigestores. muestreo fresca para analizar presencia patogenos al comienzo del otro final proceso biodigestores; los muestreos repitieron dos momentos las granjas. Para estercolero, lleno tanque litros con analizo despues dias almacenamiento. Los fueron flujo continuo, analizaron efluentes, segun tiempos retencion hidraulica especificos. Las tecnicas diagnosticas recomendadas especificamente cada microorganismo ejecutaron laboratorios certificados por autoridad sanitaria colombiana. Resultados. De investigados detectaron usada utilizada En Porcino tipo estrongilidos no persistieron. estrongilidos, Conclusiones. Tanto como observo variacion agentes patogenos, indicando que funcionan sistemas transformacion remocion estos, siempre cuando aumenten almacenamiento si quiere mejorar su eficiencia.