Utilización de enzimas fibrolíticas para mejorar la digestión de forrajes tropicales. Efectos en la fermentación ruminal in vitro y la degradabilidad

  1. A. Diaz 1
  2. M.J. Ranilla 1
  3. C. Saro 1
  4. L.A. Giraldo 2
  5. M.D. Carro 3
  1. 1 Universidad de León
    info

    Universidad de León

    León, España

    ROR https://ror.org/02tzt0b78

  2. 2 Universidad Nacional de Colombia
    info

    Universidad Nacional de Colombia

    Bogotá, Colombia

    ROR https://ror.org/059yx9a68

  3. 3 European Telecommunications Standards Institute
    info

    European Telecommunications Standards Institute

    Antibes, Francia

    ROR https://ror.org/00pwny267

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Book:
XV Jornadas sobre Producción Animal: 14 y 15 de mayo de 2013, Zaragoza
  1. Jorge Hugo Calvo Lacosta
  2. Isabel Casasús Pueyo
  3. Margalida Joy Torrens
  4. Javier Álvarez Rodríguez
  5. Luis Varona Aguado
  6. Begoña Panea Doblao
  7. Carlos Calvete Margolles
  8. Joaquim Balcells Teres

Publisher: Asociación Interprofesional para el Desarrollo Agrario

ISBN: 978-84-695-7684-7,  978-84-695-7684-7

Year of publication: 2013

Volume: 1

Pages: 186-188

Congress: Jornadas sobre producción animal (15. 2013. Zaragoza)

Type: Conference paper

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Abstract

This study was conducted to evaluate the effects of three exogenous fibrolytic enzymes (cellulase from Trichoderma longibrachiatum (CEL), xylanase from ruminal microorganisms (XYL) and a 1:1 mixture of both enzymes (MIX)) on the in vitro ruminal fermentation of three tropical forages (Pennisetum clandestinum, Dichanthium aristatum Benth and Acacia mangium). Forages were treated with enzymes for 24 h before in vitro incubation with ruminal fluid for 24 h. Both CEL and MIX treatments increased (P<0.05) dry matter and fiber disappearance for P. clandestinum and D. aristatum Benth, but had no effects (P>0.05) with A. mangium. In addition, CEL increased (P<0.05) propionate and butyrate production for all forages. In contrast, no effects (P>0.05) of XYL were detected for any forage. The results indicate that the treatment of tropical forages with CEL and MIX can stimulate their in vitro ruminal fermentation, but the xylanase used in this study did not produce any positive effect.

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