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Optimizing diets to decrease environmental impact of Nile tilapia (Oreochromis niloticus) production

2020-04Journal article Restricted access
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dc.contributor.authorTeodósio, Rita
dc.contributor.authorEngrola, Sofia
dc.contributor.authorColen, R.
dc.contributor.authorMasagounder, Karthik
dc.contributor.authorAragão, Cláudia
dc.date.accessioned2020-06-15T11:59:39Z
dc.date.available2021-04-01T00:30:18Z
dc.date.issued2020-04
dc.description.abstractAquaculture is one of the most thriving animal production sectors, and Nile tilapia (Oreochromis niloticus) farming represents 8% of total finfish culture. However, the industry sustainability depends on the development of cost‐effective and environmental friendly feeds. This study aimed to reduce dietary protein levels in diets for juvenile tilapia and to minimize diet environmental impact while maximizing biological efficiency. A growth trial was performed using five isoenergetic plant protein‐based diets with decreasing levels of crude protein: 360, 340, 320, 300 and 280 g/kg diet (D360, D340, D320, D300 and D280, respectively). Dietary protein utilization was assessed by metabolic trials using a radiolabelled amino acid mixture. Tilapia in all treatments showed similar growth performance and feed intake. Feed conversion ratio was significantly higher in fish fed the D280 than the D360 diet, while no differences were found for other treatments. Protein retention was significantly higher in tilapia fed the D300 than the D360 diet. Amino acid catabolism increased in fish fed the D360 diet, though without significant differences in muscle amino acid retention. This study demonstrates that dietary protein levels can be reduced to 300 g/kg diet without hindering tilapia growth and feed conversion ratio, while reducing environmental nitrogen losses.pt_PT
dc.description.sponsorshipFCT: UID/Multi/04326/2019/ IF/00482/2014/CP1217/CT0005/ DL57/2016/CP1361/CT0033.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1111/anu.13004pt_PT
dc.identifier.issn1353-5773
dc.identifier.urihttp://hdl.handle.net/10400.1/14007
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherWileypt_PT
dc.subjectDietary protein contentpt_PT
dc.subjectEnvironmental impactpt_PT
dc.subjectNile tilapiapt_PT
dc.subjectNutrient outputpt_PT
dc.subjectNitrogen retentionpt_PT
dc.titleOptimizing diets to decrease environmental impact of Nile tilapia (Oreochromis niloticus) productionpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage431pt_PT
oaire.citation.issue2pt_PT
oaire.citation.startPage422pt_PT
oaire.citation.titleAquaculture Nutritionpt_PT
oaire.citation.volume26pt_PT
person.familyNameTeodósio
person.familyNameEngrola
person.familyNamePontes Barbosa Colen
person.familyNameAragão
person.givenNameRita
person.givenNameSofia
person.givenNameRita Isabel
person.givenNameCláudia
person.identifier237846
person.identifier174173
person.identifier.ciencia-id1913-A912-4673
person.identifier.ciencia-idA610-29E7-9B83
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.orcid0000-0001-7104-1844
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
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication4200b284-f483-4fef-b51d-fcfdecc5b60d
relation.isAuthorOfPublication51be5a20-df9c-4a90-85eb-51d779642caa
relation.isAuthorOfPublication6aa7f225-0c1b-4d34-aede-b0e1ef925083
relation.isAuthorOfPublicationbc649967-3b39-41dc-8fab-b60c24e65286
relation.isAuthorOfPublication.latestForDiscovery6aa7f225-0c1b-4d34-aede-b0e1ef925083

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