Rumenitis in Pelibuey sheep caused by ruminal acidosis does not affect nutrient digestibility | La rumenitis causada por acidosis ruminal no afecta a la digestibilidad de los nutrimentos en los ovinos Pelibuey

anglais. The objective of this experiment was to estimate impact on productivity and nutrient absorption owing to ruminal epithelial damage and laminitis in Pelibuey sheep. Thirty-one animals were used, of which eight showed severe laminitis problems due to previous ruminal acidosis and rumenitis (RUM), and the remainder were healthy (C). They were fed for 91 d free access to a ration based on poultry manure, corn and molasses. Average daily weight gain (ADG), dry matter intake (DMI), feed conversion (CO), dry and organic matter digestibility (DMD, OMD) and crude protein digestibility (CPD) of the diet were calculated, as well as absorbed organic matter (AOM, kg/anim/d). Animals were slaughtered at the end of the experiment, and their rumens examined. Results were analyzed by means of the least squares method using a linear model that included the mean, the effect of rumenitis (RUM vs C) and the random error [NiD ( 0, s2)]. Rumenitis affected ADG and DMI (0.140, 1.016 and 0.180, 1.250 kg for RUM and C respectively P

espagnol; castillan. El objetivo del experimento fue cuantificar el impacto de la rumenitis y la laminitis en ovinos machos Pelibuey. Se utilizaron 31 animales de los cuales ocho presentaban al inicio signos de laminitis, ocasionada por acidosis ruminal y rumenitis (grupo RUM). El resto estaban saludables (grupo T). Se alimentaron a libertad durante 91 días con un alimento elaborado con pollinaza, maíz y melaza. Se midió: ganancia diaria de peso (GDP), consumo de alimento (CMS), conversión alimenticia (CA), digestibilidad de materia seca y orgánica (DMS, DMO), de proteína cruda (DPC), así como la materia orgánica absorbida (MOA). Al finalizar, los animales se sacrificaron y se observó la condición de la mucosa ruminal. La GDP y el CMS fueron menores en el grupo RUM comparado con el T (0.140, 1.016 y 0.180, 1.250 kg respectivamente, P