Differential mesenteric fat deposition in bovines fed on silage or concentrate is independent of glycerol membrane permeability

Detalhes bibliográficos
Autor(a) principal: Martins, A. P.
Data de Publicação: 2011
Outros Autores: Lopes, P. A., Costa, A. S. H., Martins, S. V., Santos, N. C., Prates, J. A. M., Moura, T. F., Soveral, G.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10451/6735
Resumo: © The Animal Consortium 2011
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spelling Differential mesenteric fat deposition in bovines fed on silage or concentrate is independent of glycerol membrane permeabilityAdipose membraneGlycerol permeabilityMembrane fluidityLipid compositionBovine breeds© The Animal Consortium 2011In the meat industry, the manipulation of fat deposition in cattle is of pivotal importance to improve production efficiency, carcass composition and ultimately meat quality. There is an increasing interest in the identification of key factors and molecular mechanisms responsible for the development of specific fat depots. This study aimed at elucidating the influence of breed and diet on adipose tissue membrane permeability and fluidity and their interplay on fat deposition in bovines. Two Portuguese autochthonous breeds, Alentejana and Barrosã, recognized as late- and early-maturing breeds, respectively, were chosen to examine the effects of breed and diet on fat deposition and on adipose membrane composition and permeability. Twenty-four male bovines from these breeds were fed on silage-based or concentrate-based diets for 11 months. Animals were slaughtered to determine their live slaughter and hot carcass weights, as well as weights of subcutaneous and visceral adipose depots. Mesenteric fat depots were excised and used to isolate adipocyte membrane vesicles where cholesterol content, fatty acid profile as well as permeability and fluidity were determined. Total accumulation of neither subcutaneous nor visceral fat was influenced by breed. In contrast, mesenteric and omental fat depots weights were higher in concentrate-fed bulls relative to silage-fed animals. Membrane fluidity and permeability to water and glycerol in mesenteric adipose tissue were found to be independent of breed and diet. Moreover, the deposition of cholesterol and unsaturated fatty acids, which may influence membrane properties, were unchanged among experimental groups. Adipose membrane lipids from the mesenteric fat depot of ruminants were rich in saturated fatty acids, and unaffected by polyunsaturated fatty acids dietary levels. Our results provide evidence against the involvement of cellular membrane permeability to glycerol on fat accumulation in mesenteric fat tissue of concentrate-fed bovines, which is consistent with the unchanged membrane lipid profile found among experimental groups.This study was supported by Fundação para a Ciência e a Tecnologia (FCT) through grant PTDC/CVT/2006/66114 and individual fellowships to Ana P. Martins (SFRH/BD/2009/65046), Ana S. H. Costa (SFRH/BD/2009/61068) and Susana V. Martins (SFRH/BPD/2009/63019). Paula A. Lopes is a researcher from the program ‘‘Ciência 2008’’ from FCTCambridge University Press (CUP)Repositório da Universidade de LisboaMartins, A. P.Lopes, P. A.Costa, A. S. H.Martins, S. V.Santos, N. C.Prates, J. A. M.Moura, T. F.Soveral, G.2012-07-23T11:18:10Z20112011-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10451/6735engAnimal (2011), 5:12, pp 1949–19561751-7311http://dx.doi.org/10.1017/S1751731111001091info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-08T15:49:10Zoai:repositorio.ul.pt:10451/6735Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:31:39.597100Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Differential mesenteric fat deposition in bovines fed on silage or concentrate is independent of glycerol membrane permeability
title Differential mesenteric fat deposition in bovines fed on silage or concentrate is independent of glycerol membrane permeability
spellingShingle Differential mesenteric fat deposition in bovines fed on silage or concentrate is independent of glycerol membrane permeability
Martins, A. P.
Adipose membrane
Glycerol permeability
Membrane fluidity
Lipid composition
Bovine breeds
title_short Differential mesenteric fat deposition in bovines fed on silage or concentrate is independent of glycerol membrane permeability
title_full Differential mesenteric fat deposition in bovines fed on silage or concentrate is independent of glycerol membrane permeability
title_fullStr Differential mesenteric fat deposition in bovines fed on silage or concentrate is independent of glycerol membrane permeability
title_full_unstemmed Differential mesenteric fat deposition in bovines fed on silage or concentrate is independent of glycerol membrane permeability
title_sort Differential mesenteric fat deposition in bovines fed on silage or concentrate is independent of glycerol membrane permeability
author Martins, A. P.
author_facet Martins, A. P.
Lopes, P. A.
Costa, A. S. H.
Martins, S. V.
Santos, N. C.
Prates, J. A. M.
Moura, T. F.
Soveral, G.
author_role author
author2 Lopes, P. A.
Costa, A. S. H.
Martins, S. V.
Santos, N. C.
Prates, J. A. M.
Moura, T. F.
Soveral, G.
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Martins, A. P.
Lopes, P. A.
Costa, A. S. H.
Martins, S. V.
Santos, N. C.
Prates, J. A. M.
Moura, T. F.
Soveral, G.
dc.subject.por.fl_str_mv Adipose membrane
Glycerol permeability
Membrane fluidity
Lipid composition
Bovine breeds
topic Adipose membrane
Glycerol permeability
Membrane fluidity
Lipid composition
Bovine breeds
description © The Animal Consortium 2011
publishDate 2011
dc.date.none.fl_str_mv 2011
2011-01-01T00:00:00Z
2012-07-23T11:18:10Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10451/6735
url http://hdl.handle.net/10451/6735
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Animal (2011), 5:12, pp 1949–1956
1751-7311
http://dx.doi.org/10.1017/S1751731111001091
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Cambridge University Press (CUP)
publisher.none.fl_str_mv Cambridge University Press (CUP)
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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