Changes in rumen microbes in sheep in response to dietary forage quality and relationships with fermentation characteristics

Saro, C.; Ranilla, M. J.; Tejido, M. L. y Carro Travieso, María Dolores (2014). Changes in rumen microbes in sheep in response to dietary forage quality and relationships with fermentation characteristics. "Livestock Science", v. 160 ; pp. 52-59. ISSN 0301-6226. https://doi.org/10.1016/j.livsci.2013.11.018.

Descripción

Título: Changes in rumen microbes in sheep in response to dietary forage quality and relationships with fermentation characteristics
Autor/es:
  • Saro, C.
  • Ranilla, M. J.
  • Tejido, M. L.
  • Carro Travieso, María Dolores
Tipo de Documento: Artículo
Título de Revista/Publicación: Livestock Science
Fecha: Febrero 2014
Volumen: 160
Materias:
Escuela: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Departamento: Producción Agraria
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

Texto completo

[img] PDF (Document Portable Format) - Acceso permitido solamente a usuarios en el campus de la UPM - Se necesita un visor de ficheros PDF, como GSview, Xpdf o Adobe Acrobat Reader
Descargar (1MB)

Resumen

An in vitro experiment was carried out using the Hohenheim gas production technique to evaluate 24-h gas production, apparently and truly degraded dry matter (DM), partitioning factor (PF), short chain fatty acids, crude protein (CP) and carbohydrate (CHO) fractionation of grass and multipurpose tree species (MPTS) foliage diets. Four grasses and three MPTS were used to formulate 12 diets of equal mixtures (0.5:0.5 on DM basis) of each grass with each MPTS. In vitro gas production was terminated after 24 h for each diet. True DM degradability was measured from incubated samples and combined with gas volume to estimate PF. Diets had greater (P<0.001) CP (102–183 g/kg DM) content than sole grasses (66–131 g/kg DM) and lower (P<0.001) concentrations of fibre fractions. Contrary to in vitro apparently degraded DM, in vitro truly degraded DM coefficient was greater (P<0.001) in diets (0.63–0.77) than in sole grasses (0.48–0.68). The PF was on average higher in diets than in sole grasses. The proportion of potentially degradable CP fractions (A1, B1, B2 and B3, based on the Cornell Net Carbohydrate and Protein System) in the diets ranged from 971 to 989 g/kg CP. Crude protein fractions, A and B2 were greater in diets but B1 and B3 fractions were less in diets than in sole grasses. A similar trend was also observed in the CHO fractions. Results showed that the nutritive value of the four grasses was improved when MPTS leaves were incorporated into the diet and this could ensure higher productivity of the animals.

Más información

ID de Registro: 35234
Identificador DC: http://oa.upm.es/35234/
Identificador OAI: oai:oa.upm.es:35234
Identificador DOI: 10.1016/j.livsci.2013.11.018
URL Oficial: http://www.sciencedirect.com/science/article/pii/S1871141313005118
Depositado por: Memoria Investigacion
Depositado el: 28 May 2015 14:16
Ultima Modificación: 28 May 2015 14:16
  • Open Access
  • Open Access
  • Sherpa-Romeo
    Compruebe si la revista anglosajona en la que ha publicado un artículo permite también su publicación en abierto.
  • Dulcinea
    Compruebe si la revista española en la que ha publicado un artículo permite también su publicación en abierto.
  • Recolecta
  • e-ciencia
  • Observatorio I+D+i UPM
  • OpenCourseWare UPM