To assess the effect of 0, 5 or 10% of cellulase and 4% sodium hydroxide pre-treated tequilana agave bagasse on animal performance, 9 Pelibuey male lambs (20 kg) were used in a 3 )3 factorial arrangement. Including agave bagasse in the complete feed increased dry matter, organic matter and gross energy intake and total tract digestibility (PB0.05). However, neither the water intake nor the body daily weight gain was affected by the tested treatments (P!0.05). Hence, agave bagasse from the tequila industry, when pre-treated could be considered an alternative ingredient for feeding lambs.
El 2% de inulina de agave en el alimento del conejo afecta positivamente la digestibilidad y microbiota intestinal
RESUMENLos oligosacáridos de los alimentos actúan como moduladores de la microbiota intestinal y a la vez como fibra no digerible. El Agave azul tequilana Weber es una planta que se emplea tradicionalmente para producir tequila, pero actualmente es fuente del fructo-oligosacárido inulina. Dieciocho conejos machos fueron alimentados con concentrado comercial para evaluar el efecto de la adición de tres niveles (0, 1, o 2%) de inulina de agave, en la digestibilidad y población microbiana del intestino. Adicionar la inulina de agave al alimento redujo el consumo e incremento la digestibilidad aparente de los nutrimentos (p < 0.05), incluyendo de la energía bruta (p < 0.05). En cambio, el consumo de agua de bebida se redujo significativamente (p < 0.05). Por otra parte, la cantidad de E. coli (UFC/g) en las heces de los conejos se vieron reducidas con la adición de la inulina (p < 0.05). En conclusión, el empleo de 2% de inulina de agave en el alimento del conejo, afecta positivamente la digestibilidad y microflora intestinal. Palabras clave; Inulina de Agave tequilana, conejo, digestibilidad, microbiota.
ABSTRACTOligosaccharides present in feed act as microflora modulator and nondigestible fiber source. Agave azul tequilana Weber is a plant that is primarily used to produce tequila and as a source of the fructooligosaccharide inulin. Eighteen male rabbits nourished with commercial feed were used to assess three levels (0, 1, or 2%) of agave inulin addition, and its impact on digestibility and microbial population of the intestine. The addition of the agave inulin reduced the intake and increased the apparent digestibility of nutrients (p < 0.05), except for the energy digestion (p > 0.05). Also, water daily intake was significantly reduced (p < 0.05). On the other hand, fecal E. coli count (UFC/g) was drastically reduced with the addition of the agave inulin in the feed. In conclusion, use of 2% of agave inulin in feed affects positively the rabbit digestibility and reduces the gut microbial population.
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