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Incorporation of defatted microalgal biomass (Tetraselmis sp. CTP4) at the expense of soybean meal as a feed ingredient for juvenile gilthead seabream (Sparus aurata)

2020-05Journal article Open access
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dc.contributor.authorPereira, Hugo
dc.contributor.authorSardinha, Manuel
dc.contributor.authorSantos, Tamara
dc.contributor.authorGouveia, Luisa
dc.contributor.authorBarreira, Luísa
dc.contributor.authorDias, Jorge
dc.contributor.authorVarela, João
dc.date.accessioned2021-06-24T11:35:38Z
dc.date.available2021-06-24T11:35:38Z
dc.date.issued2020-05
dc.description.abstractThe forecasted growth of the aquaculture sector requires the use of novel and sustainable ingredients in aquaculture feeds. A study was undertaken to evaluate the effect of a 10% incorporation of defatted microalgal biomass (DMB) of Tetraselmis sp. CTP4, used at the expense of dehulled solvent-extracted soybean meal (SBM), on the growth performance, nutrient digestibility and physiological response to confinement stress in gilthead seabream juveniles. The trial comprised two dietary treatments: a control diet (CTRL) with relatively high levels of marine-derived proteins and 10% SBM; and a test diet (DMB10) with the incorporation of 10% DMB at the expense of SBM, while maintaining a fair constancy of all other ingredients. Triplicate groups of 30 fish, with a mean initial body weight of 6.0 +/- 0.2 g were fed the experimental diets for 61 days. At the end of the trial, fish tripled their initial body weight, but the overall growth performance criteria (final body weight, daily growth index, feed conversion ratio and protein efficiency ratio), whole-body composition and nutrient retention were not significantly affected by the dietary treatments (p > 0.05). The DMB10 diet showed a significantly higher apparent digestibility coefficients (ADC) of dry matter, energy and phosphorus (p < 0.05). When measured as an isolated feed ingredient, the DMB had an ADC of protein, fat, energy and phosphorus of 87.9, 85.3, 75.5 and 41.4%, respectively. After an acute confinement stress test, fish fed with DMB10 diet displayed a significantly lower plasma cortisol response (120 +/- 23 ng/mL) than those fed with the control diet (160 +/- 33 ng/mL) (p < 0.05). Overall results showed that DMB, issued from biorefinery processes, could potentially spare the use of soybean meal in aquaculture feeds, contributing towards a reduction of the current protein deficit in the European market.
dc.description.sponsorshipSparos, Lda.
dc.description.sponsorshipPortuguese national budget
dc.description.sponsorshipFoundation for Science and Technology (FCT)Portuguese Foundation for Science and TechnologyEuropean Commission [UIDB/04326/2020]
dc.description.sponsorshipCompete 2020 [24517_VALORMAR]
dc.description.sponsorshipLisboa 2020 [24517_VALORMAR]
dc.description.sponsorshipCRESC Algarve 2020 [24517_VALORMAR]
dc.description.sponsorshipPortugal 2020 [24517_VALORMAR]
dc.description.sponsorshipEuropean Union through FEDER/ERDF
dc.description.sponsorshipFCTPortuguese Foundation for Science and TechnologyEuropean Commission [SFRH/BD/105541/2014]
dc.description.versioninfo:eu-repo/semantics/acceptedVersion
dc.identifier.doi10.1016/j.algal.2020.101869
dc.identifier.issn2211-9264
dc.identifier.urihttp://hdl.handle.net/10400.1/16495
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.relationAlgarve Centre for Marine Sciences
dc.relationBiotechnological applications of a promising marine chlorophyte Tetraselmis sp. CTP4: a biorefinery approach
dc.subjectBiorefinery
dc.subjectDefatted microalgal biomass
dc.subjectFeed ingredient
dc.subjectMicroalgae
dc.subjectSoybean
dc.subjectSparus aurata
dc.titleIncorporation of defatted microalgal biomass (Tetraselmis sp. CTP4) at the expense of soybean meal as a feed ingredient for juvenile gilthead seabream (Sparus aurata)
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleBiotechnological applications of a promising marine chlorophyte Tetraselmis sp. CTP4: a biorefinery approach
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04326%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/OE/SFRH%2FBD%2F105541%2F2014/PT
oaire.citation.startPage101869
oaire.citation.titleAlgal Research-Biomass Biofuels and Bioproducts
oaire.citation.volume47
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamOE
person.familyNamePereira
person.familyNameSantos
person.familyNameBarreira
person.familyNameVarela
person.givenNameHugo
person.givenNameTamara
person.givenNameLuísa
person.givenNameJoão
person.identifier282781
person.identifier.ciencia-id331E-84FD-2F34
person.identifier.ciencia-id6D1A-17E5-1400
person.identifier.orcid0000-0002-1369-2099
person.identifier.orcid0000-0001-9008-4436
person.identifier.orcid0000-0002-4077-855X
person.identifier.orcid0000-0003-3101-693X
person.identifier.ridE-9360-2015
person.identifier.ridM-4223-2013
person.identifier.scopus-author-id54080259900
person.identifier.scopus-author-id55741416000
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
rcaap.rightsopenAccess
rcaap.typearticle
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