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

The 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 f...

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Autores principales:	Velásquez,Alejandro, Rivero,Jordana, Marnet,Pierre-Guy
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal 2016
Materias:	Ruminal protein degradability methodologies limitations
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202016000200001
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spelling	oai:scielo:S0718-162020160002000012016-10-07Empirical attributes and limitations of methodologies for predicting the degradability of ruminal proteinVelásquez,AlejandroRivero,JordanaMarnet,Pierre-Guy Ruminal protein degradability methodologies limitations The 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.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería ForestalCiencia e investigación agraria v.43 n.2 20162016-05-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202016000200001en10.4067/S0718-16202016000200001
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Ruminal protein degradability methodologies limitations
spellingShingle	Ruminal protein degradability methodologies limitations Velásquez,Alejandro Rivero,Jordana Marnet,Pierre-Guy Empirical attributes and limitations of methodologies for predicting the degradability of ruminal protein
description	The 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.
author	Velásquez,Alejandro Rivero,Jordana Marnet,Pierre-Guy
author_facet	Velásquez,Alejandro Rivero,Jordana Marnet,Pierre-Guy
author_sort	Velásquez,Alejandro
title	Empirical attributes and limitations of methodologies for predicting the degradability of ruminal protein
title_short	Empirical attributes and limitations of methodologies for predicting the degradability of ruminal protein
title_full	Empirical attributes and limitations of methodologies for predicting the degradability of ruminal protein
title_fullStr	Empirical attributes and limitations of methodologies for predicting the degradability of ruminal protein
title_full_unstemmed	Empirical attributes and limitations of methodologies for predicting the degradability of ruminal protein
title_sort	empirical attributes and limitations of methodologies for predicting the degradability of ruminal protein
publisher	Pontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal
publishDate	2016
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202016000200001
work_keys_str_mv	AT velasquezalejandro empiricalattributesandlimitationsofmethodologiesforpredictingthedegradabilityofruminalprotein AT riverojordana empiricalattributesandlimitationsofmethodologiesforpredictingthedegradabilityofruminalprotein AT marnetpierreguy empiricalattributesandlimitationsofmethodologiesforpredictingthedegradabilityofruminalprotein
_version_	1714202170247610368

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

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