Effects of EPA and DHA on in vitro ruminal biohydrogenation of 18-carbon fatty acids in sheep

Effects of EPA and DHA on in vitro ruminal biohydrogenation of 18-carbon fatty acids in sheep

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1 página.-- Trabajo presentado al: Joint Seminar of the FAO-CIHEAM Network on Sheep and Goats. Joint Seminar of the Sub-Networks on Production Systems and on Nutrition: Innovation for Sustainability in Sheep and Goats, p. 78 (S2N-43). 3-5 de octubre de 2017. Vitoria-Gazteiz (España).

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Main Authors: Toral, Pablo G., Hervás, Gonzalo, Carreño, David, Leskinen, H., Belenguer, Álvaro, Shingfield, Kevin J., Frutos, Pilar
Format: póster de congreso biblioteca
Language:English
Published: Centre international de hautes études agronomiques méditerranéennes 2017
Subjects:Lipid metabolism, PUFA, Trans fatty acid, Ewe,
Online Access:http://hdl.handle.net/10261/156200
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spelling dig-igm-es-10261-1562002022-12-15T14:10:35Z Effects of EPA and DHA on in vitro ruminal biohydrogenation of 18-carbon fatty acids in sheep Toral, Pablo G. Hervás, Gonzalo Carreño, David Leskinen, H. Belenguer, Álvaro Shingfield, Kevin J. Frutos, Pilar Lipid metabolism PUFA Trans fatty acid Ewe 1 página.-- Trabajo presentado al: Joint Seminar of the FAO-CIHEAM Network on Sheep and Goats. Joint Seminar of the Sub-Networks on Production Systems and on Nutrition: Innovation for Sustainability in Sheep and Goats, p. 78 (S2N-43). 3-5 de octubre de 2017. Vitoria-Gazteiz (España). Marine lipid supplements have been used to inhibit the ruminal saturation of trans-11 18:1, with the final goal of enhancing cis-9 trans-11 conjugated linoleic acid (CLA) concentration in milk and meat. This response would be largely explained by the effects of n-3 very long chain polyunsaturated fatty acids (PUFA) on the last biohydrogenation (BH) step. In this regard, docosahexaenoic acid (DHA, 22:6n-3) has been suggested to be a stronger inhibitor of trans-18:1 hydrogenation than eicosapentaenoic acid (EPA, 20:5n-3) in cows, but information about changes in individual 18:1 isomers is very limited, and no reports are available in sheep. This in vitro study was therefore conducted to compare the impact of EPA and DHA on the BH of 18-carbon fatty acids in ovine, using batch cultures of rumen microorganisms and cannulated ewes as inocula donors. The two PUFA were added at a dose of 2% incubated DM and effects were examined after 24 h of incubation. The DHA treatment led to the greatest concentration of trans-18:1 in digesta, but this was mainly accounted for by accumulation of metabolites from alternative BH pathways (e.g, trans-9, -10, -12 and -15 18:1), while the inhibition of trans-11 18:1 saturation was comparable with both PUFA. The saturation of cis-18:1 was constrained too, particularly by DHA, whereas EPA seemed to have specific effects on 18:3n-3 metabolism. Changes in oxo-FA concentrations suggested that ruminal hydration (an alternative metabolic pathway to BH) was also affected by PUFA treatments. Peer reviewed 2017-10-10T07:18:51Z 2017-10-10T07:18:51Z 2017 póster de congreso http://purl.org/coar/resource_type/c_6670 Joint Seminar of the FAO-CIHEAM Network on Sheep and Goats. Joint Seminar of the Sub-Networks on Production Systems and on Nutrition: Innovation for Sustainability in Sheep and Goats : 78 (2017) http://hdl.handle.net/10261/156200 en Publisher's version http://networks.iamz.ciheam.org/sgvitoria2017/en/ Sí open Centre international de hautes études agronomiques méditerranéennes Food and Agriculture Organisation of the United Nations
institution IGM ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-igm-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del IGM España
language English
topic Lipid metabolism
PUFA
Trans fatty acid
Ewe
Lipid metabolism
PUFA
Trans fatty acid
Ewe
spellingShingle Lipid metabolism
PUFA
Trans fatty acid
Ewe
Lipid metabolism
PUFA
Trans fatty acid
Ewe
Toral, Pablo G.
Hervás, Gonzalo
Carreño, David
Leskinen, H.
Belenguer, Álvaro
Shingfield, Kevin J.
Frutos, Pilar
Effects of EPA and DHA on in vitro ruminal biohydrogenation of 18-carbon fatty acids in sheep
description 1 página.-- Trabajo presentado al: Joint Seminar of the FAO-CIHEAM Network on Sheep and Goats. Joint Seminar of the Sub-Networks on Production Systems and on Nutrition: Innovation for Sustainability in Sheep and Goats, p. 78 (S2N-43). 3-5 de octubre de 2017. Vitoria-Gazteiz (España).
format póster de congreso
topic_facet Lipid metabolism
PUFA
Trans fatty acid
Ewe
author Toral, Pablo G.
Hervás, Gonzalo
Carreño, David
Leskinen, H.
Belenguer, Álvaro
Shingfield, Kevin J.
Frutos, Pilar
author_facet Toral, Pablo G.
Hervás, Gonzalo
Carreño, David
Leskinen, H.
Belenguer, Álvaro
Shingfield, Kevin J.
Frutos, Pilar
author_sort Toral, Pablo G.
title Effects of EPA and DHA on in vitro ruminal biohydrogenation of 18-carbon fatty acids in sheep
title_short Effects of EPA and DHA on in vitro ruminal biohydrogenation of 18-carbon fatty acids in sheep
title_full Effects of EPA and DHA on in vitro ruminal biohydrogenation of 18-carbon fatty acids in sheep
title_fullStr Effects of EPA and DHA on in vitro ruminal biohydrogenation of 18-carbon fatty acids in sheep
title_full_unstemmed Effects of EPA and DHA on in vitro ruminal biohydrogenation of 18-carbon fatty acids in sheep
title_sort effects of epa and dha on in vitro ruminal biohydrogenation of 18-carbon fatty acids in sheep
publisher Centre international de hautes études agronomiques méditerranéennes
publishDate 2017
url http://hdl.handle.net/10261/156200
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