Observatorio de I+D+i UPM

Memorias de investigación
Artículos en revistas:
In situ evaluation of the protein value of wheat grain corrected for ruminal microbial contamination
Año:2009
Áreas de investigación
  • Producción animal
Datos
Descripción
BACKGROUND: Uncorrected and microbial corrected in situ estimates of ruminal effective degradability (RED) of dry matter (DM), organic matter (OM) and crude protein (CP) and intestinal effective digestibility (IED) of DM and CP of a wheat grain sample were obtained by a simplified method using a sample pooled from rumen-incubated residues representing rumen outflow of undegraded food. Uncorrected values of RED of DM and CP were also obtained by the usual mathematical integration method. The study was performed in three rumen and duodenum cannulated wheters. RESULTS: Uncorrected values of RED of CP were similar either for the mathematical integration or this simplified method (82.4% vs. 82.2%). Microbial contamination in the rumen lead to small underestimations (P < 0.05) of RED of DM (87.9% vs. 88.1%) and CP (82.2% vs. 82.8%) and to small overestimations (P < 0.05) of IED for DM (66.5% vs. 66.1%) and CP (87.7% vs. 87.3%). Accumulative errors resulted in overestimations (P < 0.05) of the intestinal digested fractions of DM (1.8%) and CP (4.0%). CONCLUSION: Corrected values of intestinal digested CP show that the protein value of wheat is closely related to the microbial protein synthesis derived from its OM rumen fermentation . This synthesis and the content of intestinal digested undegraded protein may be respectively higher and lower than is usually assumed in feed tables.
Internacional
Si
JCR del ISI
Si
Título de la revista
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
ISSN
0022-5142
Factor de impacto JCR
1,333
Información de impacto
Volumen
89
DOI
Número de revista
0
Desde la página
731
Hasta la página
734
Mes
ENERO
Ranking
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Javier Gonzalez Cano (UPM)
  • Autor: Carlos Alberto Rodriguez Cortes (UPM)
  • Autor: Maria Remedios Alvir Morencos (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Producción Animal
  • Departamento: Producción Animal
S2i 2021 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)