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Pastos y Forrajes

versión impresa ISSN 0864-0394


GALINA, M.A et al. Ruminal kinetics and growth of kids supplemented with a lactic acid bacteria probiotic. Pastos y Forrajes [online]. 2009, vol.32, n.4, pp.1-1. ISSN 0864-0394.

With the objective of evaluating the ruminal kinetics and growth of kids supplemented with a lactic acid bacteria (LAB) probiotic, 86 Alpine animals were assigned to a trial for 120 days. In treatment 1 (T1), 43 kids received a diet constituted by 50% alfalfa hay, 40% commercial concentrate and 10% slow intake nitrogen feed (ID). The animals in treatment two (T2) received ID daily sprayed with 50 mL probiotic (LAB) per kilogram of DM. In situ DM disappearance, voluntary DM intake, fiber degradation, NH3 and VFA concentration, in vivo digestibility, ruminal pH, purine derivatives and weight gain were determined. The daily weight gain was 129 and 169 g for T1 and T2, respectively (P<0,05). NH3 and N and fiber digestibility were higher for T2 (P<0,05). The half-time disappearance of hemicellulose was higher (P<0,05) for T2. The total LAB counts were 1,6 and 2,5 million fcu/mL in T1 on days 1 and 7. The kids in T2 showed 2,4 and 12,5 million fcu/mL. It is concluded that the addition of LAB to the diet for growing kids can increase live weight gain, as well as produce favorable changes in digestibility, microbial protein and ruminal kinetics.

Palabras clave : Lactic acid bacteria; goat kids; probiotics.

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