Short-term cycles of feed deprivation and refeeding promote full compensatory growth in the Amazon fish matrinxa (Brycon amazonicus)

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dc.contributor.authorUrbinati, Elisabeth Criscuolo [UNESP]
dc.contributor.authorJimenez Sarmiento, Sherezada
dc.contributor.authorTakahashi, Leonardo Susumu [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniv Nacl Colombia
dc.date.accessioned2015-03-18T15:53:18Z
dc.date.available2015-03-18T15:53:18Z
dc.date.issued2014-09-20
dc.description.abstractDeveloping nutritional strategies that can reduce production costs for the fish industry without affecting productive performance is paramount to make the activity sustainable. We investigated if short-term cycles of feed deprivation and refeeding elicit compensatory growth in matrinxa (Brycon amazonicus) juveniles, using three feeding protocols for 60 days (Phase 1): two levels of deprivation (feed deprivation for two days and refeeding for three - D2R3, or four days - D2R4) and a control level (daily feeding). Following, all fish groups were fed daily at satiation for 15 days (Phase 2). At Phase 1, matrinxa achieved full compensatory growth in both deprivation levels by increasing feed intake and feed efficiency. Overall, deprived fish consumed 40% (D2R3) and 36% (D2R4) less feed than fish fed daily. In Phase 2, growth was similar for all fish. Feed intake increased in both deprived fish, but feed efficiency did not differ among groups and was lower than in Phase 1, indicating a reduced efficiency in feed utilization when food was freely available. We propose that intermittent cycles of feeding represent an effective means to reduce production costs. (C) 2014 Elsevier B.V. All rights reserved.en
dc.description.affiliationUniv Estadual Paulista, UNESP, Ctr Aquicultura, Fac Ciencias Agr & Vet, BR-14887900 Sao Paulo, Brazil
dc.description.affiliationUniv Nacl Colombia, Fac Med Vet & Zootecnia, Bogota, Colombia
dc.description.affiliationUniv Estadual Paulista, UNESP, BR-14887900 Sao Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, UNESP, Ctr Aquicultura, Fac Ciencias Agr & Vet, BR-14887900 Sao Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, UNESP, BR-14887900 Sao Paulo, Brazil
dc.format.extent430-433
dc.identifierhttp://dx.doi.org/10.1016/j.aquaculture.2014.06.030
dc.identifier.citationAquaculture. Amsterdam: Elsevier Science Bv, v. 433, p. 430-433, 2014.
dc.identifier.doi10.1016/j.aquaculture.2014.06.030
dc.identifier.issn0044-8486
dc.identifier.lattes3860915077534516
dc.identifier.urihttp://hdl.handle.net/11449/116429
dc.identifier.wosWOS:000342529400058
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofAquaculture
dc.relation.ispartofjcr2.710
dc.relation.ispartofsjr1,152
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectFeeding protocolen
dc.subjectFeed deprivationen
dc.subjectGrowth performanceen
dc.subjectMatrinxaen
dc.subjectProduction costsen
dc.titleShort-term cycles of feed deprivation and refeeding promote full compensatory growth in the Amazon fish matrinxa (Brycon amazonicus)en
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.lattes3860915077534516
unesp.author.orcid0000-0002-5820-188X[3]

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