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dc.contributor.authorBenedito-Palos, Laura-
dc.contributor.authorNavarro, Juan Carlos-
dc.contributor.authorKaushik, Sadasivam-
dc.contributor.authorPérez-Sánchez, Jaume-
dc.date.accessioned2012-02-01T13:07:49Z-
dc.date.available2012-02-01T13:07:49Z-
dc.date.issued2010-05-
dc.identifier.citationJournal of animal science 88(5):1759-1770 (2010)es_ES
dc.identifier.issn0021-8812-
dc.identifier.urihttp://hdl.handle.net/10261/45009-
dc.description14 p., il., tablas y bibliografíaes_ES
dc.description.abstractThe present study aimed to determine the tissue-specific robustness of fatty acid (FA) signatures of gilthead sea bream (Sparus aurata L.) by analyzing the changes in lipid class and FA composition of skeletal muscle, brain, liver, and mesenteric adipose tissue. Triplicate groups of fish were fed to visual satiety over a 14-mo production cycle with 2 practical plant protein-based diets formulated with either fish oil or a blend of vegetable oils (66% of fish oil replacement) to contain 53% CP and 21% crude fat on a DM basis. Growth rates (P = 0.22) and tissue lipid class composition were not altered by the dietary treatment (P = 0.34 and 0.52 for neutral lipids and phospholipids, respectively). The FA signatures of neutral lipids reflected the composition of the diet, although the output of principal components analysis revealed a divergent FA profile for liver compared with skeletal muscle, brain, and mesenteric adipose tissue. Because the theoretical EFA needs were met by the 2 diets, the FA composition of phospholipids remained almost unaltered in all tissues. Interestingly, however, the brain showed the greatest robustness and regulatory capacity to preserve the phenotype of fish fed fish oil-based diets. The FA signatures of total lipids are a combinatory result of neutral and polar lipids, and the most relevant fat storage tissues (mesenteric adipose tissue and skeletal muscle) were more easily influenced by dietary FA composition. The present study provides new insights into fish tissue FA composition and reinforces the use of FA signatures as useful criteria in determining whether EFA requirements for a wide range of physiological processes, including those of neural tissues, can be met with practical fish feeds.es_ES
dc.language.isoenges_ES
dc.publisherAmerican Society of Animal Sciencees_ES
dc.rightsclosedAccesses_ES
dc.subjectFatty acid biomarkeres_ES
dc.subjectFish compositiones_ES
dc.subjectFish oiles_ES
dc.subjectNeutral lipides_ES
dc.subjectPhospholipides_ES
dc.subjectVegetable oiles_ES
dc.titleTissue-specific robustness of fatty acid signatures in cultured gilthead sea bream (Sparus aurata L.) fed practical diets with a combined high replacement of fish meal and fish oiles_ES
dc.typeartículoes_ES
dc.identifier.doi10.2527/jas.2009-2564-
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttp://dx.doi.org/10.2527/jas.2009-2564es_ES
dc.identifier.e-issn1525-3163-
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