Empirical attributes and limitations of methodologies for predicting the degradability of ruminal protein

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dc.contributor.authorVelásquez Briceno, Alejandro
dc.contributor.authorRivero, Jordana
dc.contributor.authorMarnet, Pierre-Guy
dc.date2016
dc.date.accessioned2021-04-30T16:40:39Z
dc.date.available2021-04-30T16:40:39Z
dc.description.abstractThe object of the present review is to analyze the methodologies that are commonly used to estimate protein degradability in the rumen, focusing on their attributes and limitations to offer suggestions for improving their use. This information is essential for selecting food types when formulating feed diets. A reliable prediction of the digestibility of ruminal proteins is basic information necessary for optimizing the use of nitrogenous sources because digestibility can translate, on the one hand, into higher yields of milk, milk protein, meat or wool and, on the other hand, into lower excretion of nitrogenous compounds into the environment; it also has an impact on animal health and welfare. Traditionally, the digestibility of feed proteins in the rumen has been predicted by in vivo, in situ and in vitro methods, but other techniques based on infrared spectroscopy have been developed, notably the NIRS and FTIR methods. All of these techniques present limitations, such as a disturbance factor or a source of error, that may result in inaccurate predictions. The in situ and in vitro methods, which use enzyme extracts of ruminal origin, and FTIR probably have the greatest advantages, but they need to be perfected through further research.
dc.identifier.citationCIENCIA E INVESTIGACION AGRARIA,Vol.43,171-189,2016
dc.identifier.doi10.4067/S0718-16202016000200001
dc.identifier.urihttp://repositoriodigital.uct.cl/handle/10925/3241
dc.language.isoen
dc.publisherPONTIFICIA UNIV CATOLICA CHILE. FAC AGRONOMIA INGENIERIA FORESTAL
dc.sourceCIENCIA E INVESTIGACION AGRARIA
dc.subject.englishRuminal protein degradability
dc.subject.englishmethodologies
dc.subject.englishlimitations
dc.titleEmpirical attributes and limitations of methodologies for predicting the degradability of ruminal protein
dc.typeReview
uct.catalogadorWOS
uct.indizacionSCI
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