Efectos de la oleorresina de copaiba sobre la fermentación ruminal in vitro en bovinos

Effects of copaiba oleoresin on in vitro ruminal fermentation in bovine

Objetivo. Los extractos de plantas pueden modular benéficamente la fermentación ruminal. Por lo tanto, este estudio evaluó los efectos de diferentes dosis de oleorresina de copaiba sobre la dinámica de la fermentación ruminal in vitro en bovinos. Materiales y métodos. Para ello, cuatro dosis fueron evaluadas: 0, 30, 300 y 3000 mg de oleorresina de copaiba/L de inóculo de incubación. Fue realizado un ensayo para determinar la degradabilidad in vitro de la materia seca (IVDDM). Se determinaron las concentraciones de ácidos grasos volátiles (AGV) y nitrógeno amoniacal (NH₃-N) en tres tiempos de incubación (6,24 y 48h).  Resultados. La dosis de 3000 mg/L produjo una reducción de la IVDDM en todos los tiempos de incubación (p<0.05). La dosis de 30 mg/L no redujo la IVDDM en comparación con el tratamiento control (p>0.05), excepto a las 6h de incubación. A las 24 h de incubación, la concentración de 30 mg/L produjo una mayor concentración de acetato (p<0.05), mientras que las concentraciones de 30, 300 y 3000 mg/L generaron mayores concentraciones de propionato (p<0.05) en comparación con el tratamiento control. Las concentraciones de butirato fueron mayores (p<0.05) con 300 y 3000 mg/L a las 6 h de incubación. La dosis de 3000 mg/L redujo la concentración de NH_3-N a las 6h y 24h de incubación (p<0.05). Conclusiones. Eel presente estudio revelan que la oleorresina de copaiba afecta la dinámica de la fermentación ruminal en bovinos. La concentración de 3000 mg/L reduce drásticamente la IVDDM, lo que puede ser perjudicial para la fermentación ruminal. 

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