Lupin and pea extrusion decreases the ruminal degradability and improves the true ileal digestibility of crude protein

Abstract The aim of this work was to evaluate the effect of the extrusion of dehulled lupins (Lupinus albus L.) and peas (Pisum sativum L.) on the ruminal degradability and intestinal digestibility of their protein contents. Ruminal degradability was evaluated in situ in the rumens of two fistulated...

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Autores principales:	Barchiesi,Claudia, Williams,Pamela, Velásquez,Alejandro
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal 2018
Materias:	Digestion extrusion legume grains rumen rumen undegradable protein
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202018000300231
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spelling	oai:scielo:S0718-162020180003002312019-02-04Lupin and pea extrusion decreases the ruminal degradability and improves the true ileal digestibility of crude proteinBarchiesi,ClaudiaWilliams,PamelaVelásquez,Alejandro Digestion extrusion legume grains rumen rumen undegradable protein Abstract The aim of this work was to evaluate the effect of the extrusion of dehulled lupins (Lupinus albus L.) and peas (Pisum sativum L.) on the ruminal degradability and intestinal digestibility of their protein contents. Ruminal degradability was evaluated in situ in the rumens of two fistulated cows. The true ileal crude protein (CP) digestibility was evaluated via a bioassay with Sprague Dawley laboratory rats as the animal model. Extrusion caused soluble fraction decreases in both feeds (P<0.05), with a 29 % decrease in the extruded dehulled lupins (EDL) and a 59 % decrease in the extruded peas (EP). The degradable fraction (B) in EP increased by 19 % compared to that in raw peas (RP) (P<0.05), and there was no effect of extrusion on the degradable fraction in lupins (P>0.05). Extrusion decreased the effective degradability (ED) of lupins by 12 % (P<0.05). Moreover, in EP, extrusion presented no effect on the ED (P>0.05). The extrusion process had a greater impact on the reduction of the effective degradability in lupins than it did in peas. Nevertheless, extrusion increased the true ileal CP digestibility of the ruminal postfermentation residues in both feeds.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería ForestalCiencia e investigación agraria v.45 n.3 20182018-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202018000300231en10.7764/rcia.v45i3.1762
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Digestion extrusion legume grains rumen rumen undegradable protein
spellingShingle	Digestion extrusion legume grains rumen rumen undegradable protein Barchiesi,Claudia Williams,Pamela Velásquez,Alejandro Lupin and pea extrusion decreases the ruminal degradability and improves the true ileal digestibility of crude protein
description	Abstract The aim of this work was to evaluate the effect of the extrusion of dehulled lupins (Lupinus albus L.) and peas (Pisum sativum L.) on the ruminal degradability and intestinal digestibility of their protein contents. Ruminal degradability was evaluated in situ in the rumens of two fistulated cows. The true ileal crude protein (CP) digestibility was evaluated via a bioassay with Sprague Dawley laboratory rats as the animal model. Extrusion caused soluble fraction decreases in both feeds (P<0.05), with a 29 % decrease in the extruded dehulled lupins (EDL) and a 59 % decrease in the extruded peas (EP). The degradable fraction (B) in EP increased by 19 % compared to that in raw peas (RP) (P<0.05), and there was no effect of extrusion on the degradable fraction in lupins (P>0.05). Extrusion decreased the effective degradability (ED) of lupins by 12 % (P<0.05). Moreover, in EP, extrusion presented no effect on the ED (P>0.05). The extrusion process had a greater impact on the reduction of the effective degradability in lupins than it did in peas. Nevertheless, extrusion increased the true ileal CP digestibility of the ruminal postfermentation residues in both feeds.
author	Barchiesi,Claudia Williams,Pamela Velásquez,Alejandro
author_facet	Barchiesi,Claudia Williams,Pamela Velásquez,Alejandro
author_sort	Barchiesi,Claudia
title	Lupin and pea extrusion decreases the ruminal degradability and improves the true ileal digestibility of crude protein
title_short	Lupin and pea extrusion decreases the ruminal degradability and improves the true ileal digestibility of crude protein
title_full	Lupin and pea extrusion decreases the ruminal degradability and improves the true ileal digestibility of crude protein
title_fullStr	Lupin and pea extrusion decreases the ruminal degradability and improves the true ileal digestibility of crude protein
title_full_unstemmed	Lupin and pea extrusion decreases the ruminal degradability and improves the true ileal digestibility of crude protein
title_sort	lupin and pea extrusion decreases the ruminal degradability and improves the true ileal digestibility of crude protein
publisher	Pontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal
publishDate	2018
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202018000300231
work_keys_str_mv	AT barchiesiclaudia lupinandpeaextrusiondecreasestheruminaldegradabilityandimprovesthetrueilealdigestibilityofcrudeprotein AT williamspamela lupinandpeaextrusiondecreasestheruminaldegradabilityandimprovesthetrueilealdigestibilityofcrudeprotein AT velasquezalejandro lupinandpeaextrusiondecreasestheruminaldegradabilityandimprovesthetrueilealdigestibilityofcrudeprotein
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Lupin and pea extrusion decreases the ruminal degradability and improves the true ileal digestibility of crude protein

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