Addition of essentials oils on the rumen in vitro fermentation of diets with different degradability using rumen liquor from goats | Estudio de la adición de aceites esenciales sobre la fermentación ruminal in vitro de dietas de distinta degradabilidad empleando líquido ruminal de caprino
2011
Martínez, G., Consejo Superior de Investigaciones Cientificas, Granada (España). Estacion Experimental del Zaidin | Abecia, L., Consejo Superior de Investigaciones Cientificas, Granada (España). Estacion Experimental del Zaidin | Martín García, A.I., Consejo Superior de Investigaciones Cientificas, Granada (España). Estacion Experimental del Zaidin | Ramos Morales, E., Consejo Superior de Investigaciones Cientificas, Granada (España). Estacion Experimental del Zaidin | Molina Alcaide, E., Consejo Superior de Investigaciones Cientificas, Granada (España). Estacion Experimental del Zaidin | Ranilla, M.J., Universidad de León (España). Dept. de Producción Animal | Yáñez Ruiz, D.R., Consejo Superior de Investigaciones Cientificas, Granada (España). Estacion Experimental del Zaidin
Different doses of essentials oils were incubated in vitro for 24 hours in diluted goat's rumen fluid with two experimental diets consisting of a 50:50 forage:concentrate mix, in which the main source of protein and energy differed in the concentrate: diet R (faba beans and oats) and diet L (corn and sunflower meal). Treatments were: control (no additive), essential oils (carvacrol, cinamaldehide and eugenol) and positive control (PS). The doses used were 40, 80, 160 and 320 microl/l for essential oils and 40, 80, 160 microl/l for synthesised compound (PS). The system used for gas production measure was the new automated in vitro system developed by Ankom. The 24 h gas production decreased (P<0.05) with carvacrol, cinamaldehide and PS at the dose of 320 microl/l for carvacrol and cinamaldehide and the dose of 160 microl/l for the PS. Diet had effect (<0.001) on gas production with carvacrol, cinamaldehide and eugenol after 24 hours incubation, as decreased in a higher extent when diet L was used as substrate. The VFA production decreased (P<0.05) only with carvacrol with the diet L at 320 microl/l dose. The acetate:propionate ratio only decreased (P<0.05) with PS at all doses. Results of this experiment suggest that cinamaldehide and carvacrol at high doses have the potential to modify rumen fermentation in goats and that the effect is influenced by the animal's diet.
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Este registro bibliográfico ha sido proporcionado por Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria