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Performance, nutrient digestibility and physiological resilience of juvenile gilthead seabream (Sparus aurata) fed organic and circular economy‐derived diets

2025-01Journal article Open access
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dc.contributor.authorMendes, Rodrigo
dc.contributor.authorTeodósio, Rita
dc.contributor.authorDias, Jorge
dc.contributor.authorFachadas Gato Coelho Gonçalves, Ana Teresa
dc.contributor.authorGalileu Speranza, Lais
dc.contributor.authorMagalhães, Sara
dc.contributor.authorAires, Tiago
dc.contributor.authorSánchez-Vázquez, Francisco J.
dc.contributor.authorEngrola, Sofia
dc.contributor.authorConceicao, Luis
dc.contributor.editorMansour Torfi Mozanzadeh
dc.date.accessioned2025-09-10T12:45:04Z
dc.date.available2025-09-10T12:45:04Z
dc.date.issued2025-01
dc.description.abstractAquafeeds formulated with organic or circular economy-derived ingredients aim to enhance sustainability and consumer acceptance. This study evaluated the global warming potential (GWP) and digestibility of such feeds, and assessed their effects on performance, feed utilisation and physiological resilience, defined as the ability to maintain tissue function and integrity under different feeding conditions of juvenile gilthead seabream (Sparus aurata) during grow out and after an overcrowding stress challenge. Three isonitrogenous (similar to 51% crude protein) and isoenergetic (similar to 18% crude fat) diets with limited fishmeal were formulated: a control (CTRL) commercial-like feed; an organic (ORG) diet based on organic-certified ingredients rich in plant proteins (primarily pea protein concentrate and wheat gluten); an eco-efficient (ECO) diet mainly composed of circular economy-derived animal by-products (e.g., poultry meal and feathermeal hydrolysate). The GWP was estimated using a life cycle assessment. Juvenile seabream (similar to 14 g) were stocked in triplicate 500 L tanks (90 fish per tank, initial density of 2.5 kg/m(3)) and fed three times daily following feeding tables generated by FiT Feeding Tables, to optimise ration and minimise waste, over a 65-day growth period (final density of 8 kg/m(3)) and a subsequent 14-day overcrowding challenge (initial density of 12.4 kg/m(3)). At the end of the growth period, all groups exhibited at least a threefold increase in body weight. Feed digestibility was high (apparent digestibility coefficients (ADCs) > 60%) and utilisation efficient. Physiological resilience was supported by stable growth and relative expression of biomarkers for gut health, oxidative status and immune function. Although ORG and ECO diets showed a higher GWP, this impact may decrease with increased use of renewable energy in ingredient production. The ORG diet also improved fish phosphorus retention. These organic and circular economy-derived feeds present viable options to reduce aquaculture's environmental footprint while maintaining fish performance and resilience.eng
dc.description.sponsorshipGrant 956129-EASYTRAIN; Project Number C644915664-00000026
dc.identifier.doi10.1155/anu/9559268
dc.identifier.eissn1365-2095
dc.identifier.issn1353-5773
dc.identifier.urihttp://hdl.handle.net/10400.1/27682
dc.language.isoeng
dc.peerreviewedyes
dc.publisherWiley
dc.relationAlgarve Centre for Marine Sciences
dc.relationAlgarve Centre for Marine Sciences
dc.relationCentre for Marine and Environmental Research
dc.relation.ispartofAquaculture Nutrition
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectAquafeeds
dc.subjectFish performance
dc.subjectFish resilience
dc.subjectGilthead seabream
dc.subjectGlobal warming potential
dc.titlePerformance, nutrient digestibility and physiological resilience of juvenile gilthead seabream (Sparus aurata) fed organic and circular economy‐derived dietseng
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleCentre for Marine and Environmental Research
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/6817 - DCRRNI ID/LA%2FP%2F0101%2F2020/PT
oaire.citation.issue1
oaire.citation.titleAquaculture Nutrition
oaire.citation.volume2025
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameMendes
person.familyNameTeodósio
person.familyNameFachadas Gato Coelho Gonçalves
person.familyNameGalileu Speranza
person.familyNameEngrola
person.familyNameConceicao
person.givenNameRodrigo
person.givenNameRita
person.givenNameAna Teresa
person.givenNameLais
person.givenNameSofia
person.givenNameLuis
person.identifier237846
person.identifier1577554
person.identifier.ciencia-id1913-A912-4673
person.identifier.ciencia-id9F1F-939B-B01A
person.identifier.ciencia-id8417-077A-0CBA
person.identifier.ciencia-idA610-29E7-9B83
person.identifier.ciencia-id9219-5DB3-CD39
person.identifier.orcid0000-0003-1284-0413
person.identifier.orcid0000-0002-8648-1241
person.identifier.orcid0000-0002-5443-7182
person.identifier.orcid0000-0001-5305-7543
person.identifier.orcid0000-0002-5244-5541
person.identifier.orcid0000-0001-6102-2068
person.identifier.ridA-2485-2012
person.identifier.ridH-6257-2011
person.identifier.scopus-author-id35867417300
person.identifier.scopus-author-id56308820700
person.identifier.scopus-author-id8669620600
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
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