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Metabolic and nutritional responses of Nile tilapia juveniles to dietary methionine sources

2022-01Journal article Open access
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dc.contributor.authorTeodósio, Rita
dc.contributor.authorEngrola, Sofia
dc.contributor.authorCabano, Miguel
dc.contributor.authorColen, R.
dc.contributor.authorMasagounder, Karthik
dc.contributor.authorRaquel Cêa de Aragão Teixeira, Cláudia
dc.date.accessioned2022-02-15T15:14:45Z
dc.date.available2022-02-15T15:14:45Z
dc.date.issued2022-01
dc.description.abstractCommercial diets for tilapia juveniles contain high levels of plant protein sources. Soybean meal has been utilised due to its high protein content; however, soy-based diets are limited in methionine (Met) and require its supplementation to fulfil fish requirements. DL-Methinone (DL-Met) and Ca bis-methionine hydroxyl analogue (MHA-Ca) are synthetic Met sources supplemented in aquafeeds, which may differ in biological efficiency due to structural differences. The present study evaluated the effect of both methionine sources on metabolism and growth of Nile tilapia. A growth trial was performed using three isonitrogenous and isoenergetic diets, containing plant ingredients as protein sources: DLM and MHA diets were supplemented on equimolar levels of Met, while REF diet was not supplemented. Hepatic free Met and one-carbon metabolites were determined in fish fed for 57 d. Metabolism of DL-Met and MHA was analysed by an in vivo time-course trial using 14C-labelled tracers. Only DLMet supplementation significantly increased final body weight and improved feed conversion and protein efficiency ratios compared with the REF diet. Our findings indicate that Met in DLM fed fish follows the transsulphuration pathway, while in fish fed MHA and REF diets it is reme thylated. The in vivo trial revealed that 14C-DL-Met is absorbed faster and more retained than 14C-MHA, resulting in a greater availability of free Met in the tissues when fish is fed with DLM diet. Our study indicates that dietary DL-Met supplementation improves growth performance and N retention, and that Met absorption and utilisation are influenced by the dietary source in tilapia juveniles.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1017/S0007114521001008pt_PT
dc.identifier.eissn1475-2662
dc.identifier.urihttp://hdl.handle.net/10400.1/17556
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherCambridgept_PT
dc.relationAlgarve Centre for Marine Sciences
dc.relationNot Available
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectNile tilapiapt_PT
dc.subjectMethionine sourcespt_PT
dc.subjectMethionine metabolismpt_PT
dc.subjectMethionine cyclept_PT
dc.titleMetabolic and nutritional responses of Nile tilapia juveniles to dietary methionine sourcespt_PT
dc.title.alternativeRespostas metabólicas e nutricionais de jovens da tilápia do Nilo a fontes dietéticas de methioninapt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleNot Available
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04326%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/Investigador FCT/IF%2F00482%2F2014%2FCP1217%2FCT0005/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/DL 57%2F2016/DL 57%2F2016%2FCP1361%2FCT0033/PT
oaire.citation.endPage213pt_PT
oaire.citation.issue2pt_PT
oaire.citation.startPage202pt_PT
oaire.citation.titleBritish Journal of Nutritionpt_PT
oaire.citation.volume127pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamInvestigador FCT
oaire.fundingStreamDL 57/2016
person.familyNameTeodósio
person.familyNameEngrola
person.familyNameOrelhas Cabano
person.familyNamePontes Barbosa Colen
person.familyNameAragão
person.givenNameRita
person.givenNameSofia
person.givenNameMiguel
person.givenNameRita Isabel
person.givenNameCláudia
person.identifier237846
person.identifierDXm3Kj0AAAAJ
person.identifier174173
person.identifier.ciencia-id1913-A912-4673
person.identifier.ciencia-idA610-29E7-9B83
person.identifier.ciencia-idD612-B91F-F943
person.identifier.ciencia-idF113-B354-F356
person.identifier.ciencia-idD01E-0726-9F3E
person.identifier.orcid0000-0002-8648-1241
person.identifier.orcid0000-0002-5244-5541
person.identifier.orcid0000-0002-4909-6715
person.identifier.orcid0000-0001-7104-1844
person.identifier.orcid0000-0002-9217-0183
person.identifier.ridA-2485-2012
person.identifier.ridK-2310-2012
person.identifier.scopus-author-id35867417300
person.identifier.scopus-author-id8669620600
person.identifier.scopus-author-id55323905000
person.identifier.scopus-author-id55903315700
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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