The ability of Nile tilapia to regulate protein and energy intake evaluated by carbon relative enrichement

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dc.contributor.authorBordinhon, André Moreira
dc.contributor.authorPezzato, Luiz Edivaldo [UNESP]
dc.contributor.authorDucati, Carlos [UNESP]
dc.contributor.authorDenadai, Juliana Célia [UNESP]
dc.contributor.authorBarros, Margarida Maria [UNESP]
dc.contributor.institutionUniversidade Federal do Amazonas (UFAM)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2016-04-01T18:44:02Z
dc.date.available2016-04-01T18:44:02Z
dc.date.issued2013
dc.description.abstractThe aim of this study was to assess the ability of Nile tilapia to balance its own diet, when two ingredient mixes were offered, using carbon stable isotopes. In order to accomplish that, 225 Nile tilapia juveniles (average initial weight 5.0 g ± 0.5 g) were distributed in five tanks, each containing a group of 45 fish. One group of fish were fed exclusively with a high protein mix (HPM; δ¹³C = -22.62‰), the second one fed only with a low protein mix (LPM; δ¹³C = 14.34‰). The other groups fad free access to both mixes (free choice system). The fish from all tanks were fed four times a day. Muscle, liver and blood samples were collected at each five days (from 2 fish/tank/collection) for 86 days, except for the fish fed with LPM (fed for a 120 days period). The samples were analysed in a mass spectrometer and proportions of the mixes consumed were estimated through its carbon isotope enrichment (δ¹³C). Energy intake slightly decreased after the 50th day and protein consumption increased after the same period. However, consumption did not present a clear pattern in relation to the individual weight, i. e., protein consumption patterns are mainly related to the age of the individuals and it is not clear if it is also correlated to their weight. Additionaly, this technique allowed the observation of differences regarding consumption among the individuals from the experimental group.en
dc.description.affiliationUniversidade Federal do Amazonas (UFAM), Instituto de Educação, Agricultura e Meio Ambiente, Humaitá, AM, Brasil
dc.description.affiliationUniversidade Estadual Paulista Júlio de Mesquita Filho (UNESP), Faculdade de Medicina Veterinária e Zootecnia (FMVZ), Departamento de Melhoramento e Nutrição Animal, Botucatu, SP, Brasil
dc.description.affiliationUniversidade Federal Paulista Júlio de Mesquita Filho (UNESP), Instituto de Biociências de Botucatu (IBB), Departamento de Física e Biofísica, Botucatu, SP, Brasil
dc.description.affiliationUnespUniversidade Estadual Paulista Júlio de Mesquita Filho (UNESP), Faculdade de Medicina Veterinária e Zootecnia (FMVZ), Departamento de Melhoramento e Nutrição Animal, Botucatu, SP, Brasil
dc.description.affiliationUnespUniversidade Federal Paulista Júlio de Mesquita Filho (UNESP), Instituto de Biociências de Botucatu (IBB), Departamento de Física e Biofísica, Botucatu, SP, Brasil
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.format.extent45-55
dc.identifierhttp://vip.dglib.cn:8080/QK/71212X/201301/45955591.html
dc.identifier.citationJournal of Agricultural Science and Technology, v. 3, p. 45-55, 2013.
dc.identifier.fileISSN1939-1250-2013-03-45-55.pdf
dc.identifier.issn1939-1250
dc.identifier.lattes9309759030087536
dc.identifier.lattes9349360966928688
dc.identifier.urihttp://hdl.handle.net/11449/137069
dc.language.isoeng
dc.relation.ispartofJournal of Agricultural Science and Technology
dc.rights.accessRightsAcesso aberto
dc.sourceCurrículo Lattes
dc.subjectProtein intakeen
dc.subjectEnergy intakeen
dc.subjectDiet self-selectionen
dc.subjectCarbon stable isotopesen
dc.subjectNile tilapiaen
dc.titleThe ability of Nile tilapia to regulate protein and energy intake evaluated by carbon relative enrichementen
dc.typeArtigo
unesp.author.lattes9309759030087536
unesp.author.lattes9349360966928688
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Medicina Veterinária e Zootecnia, Botucatupt
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Botucatupt
unesp.departmentMelhoramento e Nutrição Animalpt
unesp.departmentFísica e Biofísicapt

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Artigos - Melhoramento e Nutrição Animal - FMVZ
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