English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/22177
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Título

Prediction of aspects of neutral detergent fibre digestion of forages by chemical composition and near infrared reflectance spectroscopy

AutorAndrés, Sonia ; Giráldez, Francisco Javier ; González, Jesús Salvador ; Peláez, Rodrigo ; Prieto, Nuria ; Calleja, Alfredo
Palabras claveNDF
Degradability
Digestibility
Herbage
NIRS
Fecha de publicación2005
EditorCSIRO Publishing
CitaciónAustralian Journal of Agricultural Research, 56: 187-193 (2005)
ResumenSixty-two herbage samples, harvested in natural meadows located in the mountains of Leon (north-west Spain), and characterised by a diverse botanical composition and different stages of maturity of the plants, were used to evaluate the ability of chemical composition and near infrared (NIR) spectroscopy to predict in vitro digestibility and in sacco degradability of the neutral detergent fibre (NDF) fraction. In vitro digestibility was performed as described by the Goering and Van Soest procedure. Three dry Holstein-Friesian cows fitted with a rumen cannula were used to incubate the herbage samples. A Bran+ Luebbe InfraAlyzer 500 spectrophotometer was used to obtain the NIR spectra corresponding to the 62 original herbage samples. Prediction equations for the estimation of in vitro digestibility and in sacco degradability parameters of the NDF fraction were generated using NIR spectra or chemical data as independent variables. The results showed that the in vitro digestibility and kinetic parameters of degradation of the NDF fraction could not be predicted accurately, probably as a consequence of the errors corresponding to the reference methods. In contrast, these errors did not greatly affect the extent of disappearance of the NDF fraction at later times, so the accuracy of prediction of these parameters was higher, especially when NIR spectra were used as independent variables. This is probably due to the close relationship that the parameters showed with the chemical data, since this kind of information, together with some physical characteristics of the samples, is included in the NIR spectra.
Descripción7 pages, 5 tables.
Versión del editorhttp://dx.doi.org/10.1071/AR04164
URIhttp://hdl.handle.net/10261/22177
DOI10.1071/AR04164
ISSN0004-9409
Aparece en las colecciones: (IGM) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Embargo. Digital.CSIC..pdf21,67 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 

Artículos relacionados:


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.