Self-selection of diets with different oil oxidation levels in gilthead seabream (Sparus aurata)

3 páginas, 1 figura, 1 tabla.

Detalles Bibliográficos
Autores: Montoya, A., Alves Martins, D., Yúfera, Manuel, Sánchez-Vázquez, F. J.
Tipo de recurso: artículo
Fecha de publicación:2011
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/42894
Acceso en línea:http://hdl.handle.net/10261/42894
Access Level:acceso abierto
Palabra clave:Gilthead sea bream
Self-feeding
Oxidized lipids
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repository_id_str
spelling Self-selection of diets with different oil oxidation levels in gilthead seabream (Sparus aurata)Montoya, A.Alves Martins, D.Yúfera, ManuelSánchez-Vázquez, F. J.Gilthead sea breamSelf-feedingOxidized lipids3 páginas, 1 figura, 1 tabla.The present research looked at the ability of gilthead seabream to discriminate between two similar diets differing only in the extent of lipid oxidation. Six groups of 4 fish (254 g initial wet weight) were allowed to be selected by means of self-feeders between two complete diets (34.5% casein + gelatin, 14.8% fish oil + soybean oil, 24.8% dextrin and 25.9% vitamins, minerals, filler and binder) which differed only in the oxidation level of the lipid source: 6.2 meq/kg for the control (D1) and 100.0 meq/kg for the oxidized diet (D2). During the first nine days of the trial, fish took similar amounts of D1 and D2, although there was a clear tendency to gradually avoid D2. Finally, on day 10 fish demanded a significantly higher percentage (82%) of D1. When the diets were interchanged to investigate feeder preferences, two selection patterns were observed: three groups resumed their selection for D1 from day 7 onwards, while the other three groups did not show a clear preference for any diet until they were subjected to a 3-week fasting period (which boosts internal oxidation), after which they significantly selected D1. Taking together the results before and after fasting, gilthead seabream were able to discriminate and avoid a diet with oxidized lipids, and the physiological state of fish (oxidative stress caused by fasting) appeared to reinforce their selection/avoidance behavior.The present research was funded by the project AQUAGENOMICS 28502 (Consolider-Ingenio Program) granted to F. J. Sánchez-Vázquez and M. Yúfera and the projects from the Spanish Ministry of Science and Innovation (MICINN) (project AGL2010-22139-C03-01) and Fundación Séneca (project 08743/PI/08).Peer reviewedElsevier201120112011info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/42894reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1016/j.aquaculture.2011.01.041info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/428942026-05-22T06:33:51Z
dc.title.none.fl_str_mv Self-selection of diets with different oil oxidation levels in gilthead seabream (Sparus aurata)
title Self-selection of diets with different oil oxidation levels in gilthead seabream (Sparus aurata)
spellingShingle Self-selection of diets with different oil oxidation levels in gilthead seabream (Sparus aurata)
Montoya, A.
Gilthead sea bream
Self-feeding
Oxidized lipids
title_short Self-selection of diets with different oil oxidation levels in gilthead seabream (Sparus aurata)
title_full Self-selection of diets with different oil oxidation levels in gilthead seabream (Sparus aurata)
title_fullStr Self-selection of diets with different oil oxidation levels in gilthead seabream (Sparus aurata)
title_full_unstemmed Self-selection of diets with different oil oxidation levels in gilthead seabream (Sparus aurata)
title_sort Self-selection of diets with different oil oxidation levels in gilthead seabream (Sparus aurata)
dc.creator.none.fl_str_mv Montoya, A.
Alves Martins, D.
Yúfera, Manuel
Sánchez-Vázquez, F. J.
author Montoya, A.
author_facet Montoya, A.
Alves Martins, D.
Yúfera, Manuel
Sánchez-Vázquez, F. J.
author_role author
author2 Alves Martins, D.
Yúfera, Manuel
Sánchez-Vázquez, F. J.
author2_role author
author
author
dc.subject.none.fl_str_mv Gilthead sea bream
Self-feeding
Oxidized lipids
topic Gilthead sea bream
Self-feeding
Oxidized lipids
description 3 páginas, 1 figura, 1 tabla.
publishDate 2011
dc.date.none.fl_str_mv 2011
2011
2011
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/42894
url http://hdl.handle.net/10261/42894
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1016/j.aquaculture.2011.01.041
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.811543

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