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Modulation of dietary protein to lipid ratios for gilthead seabream on-growing during summer temperature conditions

2022Journal article Open access
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dc.contributor.authorAragão, Cláudia
dc.contributor.authorCabano, Miguel
dc.contributor.authorColen, R.
dc.contributor.authorTeodósio, Rita
dc.contributor.authorGisbert, Enric
dc.contributor.authorDias, Jorge
dc.contributor.authorEngrola, Sofia
dc.date.accessioned2022-12-19T16:03:36Z
dc.date.available2022-12-19T16:03:36Z
dc.date.issued2022
dc.description.abstractGilthead seabream (Sparus aurata) tend to increase fat deposition during summer farming conditions in the Mediterranean, which may negatively affect productive performance and consumers' quality perception of the final product. Therefore, this study evaluated the impacts of protein to lipid ratios in low fishmeal/fish oil diets on growth performance, body composition, feed conversion and nutrient utilization of seabream on-grown during summer temperature conditions. The experimental diets contained low levels of fishmeal, fish oil, and crude protein (39%), differing in crude lipid content: 16% (MF diet) or 12% (LF diet). A growth trial was per-formed with seabream (initial weight: 100 & PLUSMN; 7 g) from August to October (water temperature: 23.1 & PLUSMN; 2.2 & DEG;C). A digestibility trial was also performed (at 23 & DEG;C). Key performance indicators, whole-body composition and ac-tivities of digestive enzymes were evaluated at the end of the experiment (64 days). Low dietary lipid levels negatively affected lipid, energy, and amino acid digestibility, and as a result, fish fed the LF diet presented higher nitrogen faecal losses. Still, the decrease in nutrient digestibility was not related to dietary effects on the digestive enzyme activities. The experimental diets did not compromise the activity of pancreatic, gastric, and intestinal digestive enzymes nor feed utilization, but a slight growth impairment was observed in fish fed the LF diet, probably due to the lower amino acid and lipid digestibility. However, a potential benefit of this dietary treatment towards reducing fat accumulation in seabream during summer was observed. Nevertheless, the environmental impact of the nitrogen losses during seabream on-growing should be considered when estimating the sustainability of the production. This study demonstrated that the optimisation of diet formulations should account for the environmental conditions, especially in Mediterranean aquaculture, so the economic and envi-ronmental impacts may be correctly evaluated towards a more sustainable fish production.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.aqrep.2022.101262pt_PT
dc.identifier.issn2352-5134
dc.identifier.urihttp://hdl.handle.net/10400.1/18664
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationMediterranean Aquaculture Integrated Development
dc.relationAlgarve Centre for Marine Sciences
dc.relationAlgarve Centre for Marine Sciences
dc.relationNot Available
dc.relationCentre for Marine and Environmental Research
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectMediterranean aquaculturept_PT
dc.subjectSparus auratapt_PT
dc.subjectNutrient digestibilitypt_PT
dc.subjectLipid retentionpt_PT
dc.subjectNitrogen lossespt_PT
dc.titleModulation of dietary protein to lipid ratios for gilthead seabream on-growing during summer temperature conditionspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleMediterranean Aquaculture Integrated Development
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleNot Available
oaire.awardTitleCentre for Marine and Environmental Research
oaire.awardURIinfo:eu-repo/grantAgreement/EC/H2020/727315/EU
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04326%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04326%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/DL 57%2F2016/DL 57%2F2016%2FCP1361%2FCT0033/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0101%2F2020/PT
oaire.citation.startPage101262pt_PT
oaire.citation.titleAquaculture Reportspt_PT
oaire.citation.volume25pt_PT
oaire.fundingStreamH2020
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamDL 57/2016
oaire.fundingStream6817 - DCRRNI ID
person.familyNameAragão
person.familyNameOrelhas Cabano
person.familyNamePontes Barbosa Colen
person.familyNameTeodósio
person.familyNameEngrola
person.givenNameCláudia
person.givenNameMiguel
person.givenNameRita Isabel
person.givenNameRita
person.givenNameSofia
person.identifier174173
person.identifierDXm3Kj0AAAAJ
person.identifier237846
person.identifier.ciencia-idD01E-0726-9F3E
person.identifier.ciencia-idD612-B91F-F943
person.identifier.ciencia-idF113-B354-F356
person.identifier.ciencia-id1913-A912-4673
person.identifier.ciencia-idA610-29E7-9B83
person.identifier.orcid0000-0002-9217-0183
person.identifier.orcid0000-0002-4909-6715
person.identifier.orcid0000-0001-7104-1844
person.identifier.orcid0000-0002-8648-1241
person.identifier.orcid0000-0002-5244-5541
person.identifier.ridK-2310-2012
person.identifier.ridA-2485-2012
person.identifier.scopus-author-id55903315700
person.identifier.scopus-author-id55323905000
person.identifier.scopus-author-id35867417300
person.identifier.scopus-author-id8669620600
project.funder.identifierhttp://doi.org/10.13039/501100008530
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.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameEuropean Commission
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
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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