Establishing the optimal essential amino acid ratios in juveniles of Nile tilapia (Oreochromis niloticus) by the deletion method

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dc.contributor.authorDiogenes, A. F.en
dc.contributor.authorFernandes, J. B. K.en
dc.contributor.authorDorigam, J. C. P.en
dc.contributor.authorSakomura, N. K.en
dc.contributor.authorRodrigues, F. H. F.en
dc.contributor.authorLima, B. T. M.en
dc.contributor.authorGonçalves, Fernando Henrique A.en
dc.date.accessioned2021-12-14T15:45:14Zen
dc.date.available2021-12-14T15:45:14Zen
dc.date.issued2016-04-01en
dc.date.updated2021-12-14T15:45:12Zen
dc.description.abstractOne of the strategies used to improve fish production is lowering the feed costs and the environmental impact by reducing dietary protein content. Using the deletion method, we determined the optimal amino acid (AA) ratio for Nile tilapia (Oreochromis niloticus) (body weight 20 g). Eleven experimental diets and four replications, taken two at a time, distributed in a randomized block design were used. For this trial, a balanced diet (BD) was formulated. Ten other diets were formulated by the deletion method, in which the BD diet was adjusted to result in a reduction of 45% of the test amino acid. Fish were fed three times a day for 57 days. Groups of fish at the beginning and at the end of the experiment were euthanized for further determination of the carcass nitrogen (N) composition. The optimal ratio of each AA was derived by dividing the requirement for each AA by the requirements for lysine. The essential AA ratios, expressed relative to lysine (=100), were methionine 64, threonine 93, tryptophan 24, arginine 125, histidine 34, isoleucine 57, leucine 96, valine 76 and phenylalanine 101. Our findings might be used to design strategies aimed at reducing the production costs of Oreochromis niloticus.en
dc.description.versionSubmitted versionen
dc.format.extentPages 435-443en
dc.format.extent9 page(s)en
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1111/anu.12262en
dc.identifier.eissn1365-2095en
dc.identifier.issn1353-5773en
dc.identifier.issue2en
dc.identifier.orcidGoncalves, Fernando Henrique A [0000-0002-3555-3014]en
dc.identifier.urihttp://hdl.handle.net/10919/106979en
dc.identifier.volume22en
dc.language.isoenen
dc.publisherWileyen
dc.relation.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000372309900018&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=930d57c9ac61a043676db62af60056c1en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectLife Sciences & Biomedicineen
dc.subjectFisheriesen
dc.subjectamino aciden
dc.subjectdeletion methoden
dc.subjectnitrogen retentionen
dc.subjectNutritionen
dc.subjectproteinen
dc.subjecttilapiaen
dc.subjectGrowing-Pigsen
dc.subjectRequirementsen
dc.subjectProteinen
dc.subjectMaintenanceen
dc.subjectPatternen
dc.subjectArginineen
dc.subjectGrowthen
dc.subjectLysineen
dc.subjectDieten
dc.subjectFisheriesen
dc.subject0704 Fisheries Sciencesen
dc.titleEstablishing the optimal essential amino acid ratios in juveniles of Nile tilapia (Oreochromis niloticus) by the deletion methoden
dc.title.serialAquaculture Nutritionen
dc.typeArticleen
dc.type.dcmitypeTexten
dc.type.otherArticleen
dc.type.otherJournalen
pubs.organisational-group/Virginia Techen
pubs.organisational-group/Virginia Tech/Agriculture & Life Sciencesen
pubs.organisational-group/Virginia Tech/Agriculture & Life Sciences/Virginia Seafood ARECen

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