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Daily feeding and protein metabolism rhythms in Senegalese sole post-larvae

2017-01Artigo científico Acesso aberto
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dc.contributor.authorNavarro, Carmen
dc.contributor.authorYufera, Manuel
dc.contributor.authorEngrola, S.
dc.date.accessioned2018-12-07T14:53:06Z
dc.date.available2018-12-07T14:53:06Z
dc.date.issued2017-01
dc.description.abstractFish hatcheries must adapt larval feeding protocols to feeding behavior and metabolism patterns to obtain more efficient feed utilization. Fish larvae exhibit daily ingesting rhythms rather than ingesting food continuously throughout the day. The aim of this study was to determine the daily patterns of feed intake, protein digestibility, protein retention and catabolism in Senegalese sole post-larvae (Solea senegalensis; 33 days post-hatching) using C-14-labeled Artemia protein and incubation in metabolic chambers. Sole post-larvae were fed at 09: 00, 15: 00, 21: 00, 03: 00 and 09: 00+1 day; and those fed at 09: 00, 21: 00, 03: 00 and 09: 00+1 day showed significantly higher feed intake than post-larvae fed at 15: 00 h (P=0.000). Digestibility and evacuation rate of ingested protein did not change during the whole cycle (P=0.114); however, post-larvae fed at 21: 00 and 03: 00 h showed the significantly highest protein retention efficiency and lowest catabolism (P=0.002). Therefore, results confirm the existence of daily rhythmicity in feeding activity and in the utilization of the ingested nutrients in Senegalese sole post-larvae.
dc.description.sponsorshipFundacao para a Ciencia e a Tecnologia (FCT; Portugal) [CCMAR/Multi/04326/2013, 310305/FEP/71, IF/00482/2014/CP1217/CT0005]; PROMAR Program; Fundo Regional para a Ciencia e Tecnologia (FEDER); Ministerio de Economia y Competitividad (MINECO; Spain) by project EFISHDIGEST [AGL2014-52888-R]; FEDER/European Region Development Fund (ERDF); Ministerio de Economia y Competitividad (Spain) [BES-2012-051956]; European Social Fund under the Operational Programme for the Enhancement of Human Potential
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1242/bio.021642
dc.identifier.issn2046-6390
dc.identifier.urihttp://hdl.handle.net/10400.1/11349
dc.language.isoeng
dc.peerreviewedyes
dc.publisherCompany Of Biologists Ltd
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectSeabream Sparus-Aurata
dc.subjectClock-gene-expression
dc.subjectEuropean Sea-Bass
dc.subjectCatfish Clarias-Gariepinus
dc.subjectGilthead seabream
dc.subjectDigestive physiology
dc.subjectCircadian clock
dc.subjectFish larvae
dc.subjectAmino-acids
dc.subjectFood-intake
dc.titleDaily feeding and protein metabolism rhythms in Senegalese sole post-larvae
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage82
oaire.citation.issue1
oaire.citation.startPage77
oaire.citation.titleBiology Open
oaire.citation.volume6
person.familyNameNavarro
person.familyNameEngrola
person.givenNameCarmen
person.givenNameSofia
person.identifier237846
person.identifier.ciencia-idA610-29E7-9B83
person.identifier.orcid0000-0001-8819-6594
person.identifier.orcid0000-0002-5244-5541
person.identifier.ridA-2485-2012
person.identifier.scopus-author-id8669620600
rcaap.rightsopenAccess
rcaap.typearticle
relation.isAuthorOfPublication635238cd-bee1-4422-b231-13712728028e
relation.isAuthorOfPublication51be5a20-df9c-4a90-85eb-51d779642caa
relation.isAuthorOfPublication.latestForDiscovery51be5a20-df9c-4a90-85eb-51d779642caa

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