Browsing by Author "Guanuchi Rivas, Karina Michelle"

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    Evaluación de la degradabilidad in situ y digestibilidad in vitro de subproductos agroindustriales como potencial alimento para ovinos
    (Universidad de Cuenca, 2025-08-25) Guanuchi Rivas, Karina Michelle; Sibri Ortiz, Leslie Julissa; Haro Haro, Andrés Norberto
    This study evaluated the use of agro-industrial by-products from cacao (Theobroma cacao), coffee (Coffea spp.) and banana (Musa paradisiaca), as a possible alternative ingredient in sheep diets. Samples analyzed: cocoa husk and pulp, banana and coffee bagasse, compared with a previously dried and ground reference forage mixture. The objective was to determine the chemical composition, in situ degradability and in vitro intestinal digestibility of the by-products. The chemical composition was determined following AOAC methodologies. In situ degradability was evaluated using the Ørskov and McDonald model. The undegraded residue was then used as the substrate for in vitro intestinal digestibility through a two-stage enzymatic technique. The chemical composition results showed clear differences. On average, the cacao by-products contained 9% (CP) and 32% (NDF). Coffee bagasse presented 14% (CP) and 17% (ADL), while banana residues contained 6,3% (CP) and 6,9 (ADL). Degradability and digestibility showed significant variation (p < 0,0001) among all the evaluated by-products. Banana showed high values for total dry matter digestibility (TDMD: 89%), whereas coffee bagasse exhibited lower digestibility (TDMD: 34%). Regarding energy content (GE), cacao pulp and banana stood out, with an average of 4,8 Mcal/kg. In conclusion, cacao pulp and banana show nutritional potential due to their digestibility and energy contribution, whereas cacao husk and coffee bagasse present limitations for efficient use in ruminant diets.