2 research outputs found

    Evaluaci贸n del suministro de agua residual tratada por separaci贸n, sedimentaci贸n, filtraci贸n en la salud de cerdos destetados

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    The purpose of this study was quantifying enterobacteria and identifying Salmonella spp in wastewater treated by separation/ sedimentation/filtration, and evaluating its effect on nursery pigs. In Stage 1, a total of 40 samples were collected (i.e.: 2 weekly samples at each of four points [sedimentation pit and three filters] for 5 wk). In Stage 2, 24 pigs were assigned to three treatment groups (T1= filtered/chlorinated water, T2=filtered water, T3=potable water). The following variables were studied: daily feed intake, total feed intake, daily water intake, total water intake, feed conversion rate, body temperature, body weight gain, and clinical conditions. In Stage 1 no differences (P>0.05) were found in enterobacteria among water treatment stages, but S. enterica was isolated from 15 % of the samples. During Stage 2, daily feed intake differences (PLos objetivos fueron la cuantificaci贸n de enterobacterias (Ent) y la identificaci贸n de Salmonella spp en agua residual obtenida a partir de un tratamiento de separaci贸n-sedimentaci贸n-filtraci贸n y evaluar su efecto en la salud de cerdos destetados. En la etapa 1 se obtuvieron dos muestras de la fosa de sedimentaci贸n y de tres filtros, por cinco semanas, dando un total de 40 muestras. En la etapa 2 se emplearon 24 cerdos sujetos a 3 tratamientos: (T1= agua filtrada y clorada, T2= agua filtrada, T3= agua potable). Se evaluaron las variables: consumo diario de alimento, consumo total de alimento, consumo diario y total de agua, conversi贸n alimenticia, temperatura corporal, ganancia de peso y estado cl铆nico. En la etapa 1 Ent no mostr贸 diferencias (P>0.05) entre los elementos del sistema de tratamiento, y se aisl贸 S. ent茅rica en 15 % de las muestras. En la etapa 2 el consumo diario de alimento present贸 diferencias (
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