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Health status in gilthead seabream (Sparus aurata) juveniles fed diets devoid of fishmeal and supplemented with Phaeodactylum tricornutum

2021-04Journal article Restricted access
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dc.contributor.authorReis, B.
dc.contributor.authorRamos-Pinto, L.
dc.contributor.authorMartos-Sitcha, J. A.
dc.contributor.authorMachado, M.
dc.contributor.authorAzeredo, R.
dc.contributor.authorFernandez-Boo, S.
dc.contributor.authorEngrola, S.
dc.contributor.authorUnamunzaga, C.
dc.contributor.authorCalduch-Giner, J.
dc.contributor.authorConceicao, L. E. C.
dc.contributor.authorSilva, T.
dc.contributor.authorDias, J.
dc.contributor.authorCostas, B.
dc.contributor.authorPerez-Sanchez, J.
dc.date.accessioned2021-09-08T10:58:07Z
dc.date.available2021-09-08T10:58:07Z
dc.date.issued2021-04
dc.description.abstractTo enhance fish general health, feeds can be supplemented with health-promoting additives, reducing the need to use chemotherapeutics. Incorporation of marine algae biomasses in aquafeeds has been shown to improve fish immune status by enhancing innate immune response. This study evaluated the effects of Phaeodactylum tricornutum incorporation in feed by two different processes, either as freeze-dried biomass or broken cell wall biomass, on fish health status and performance. Triplicate groups of gilthead seabream juveniles (13.3 +/- 0.3 g) were either fed a control diet (CTRL) with an extreme (i.e., 0% fishmeal), nutritionally balanced, formulation, or two experimental diets formulated as the CTRL with 1% inclusion of the microalga P. tricornutum at the expense of wheat meal: BC diet contains P. tricornutum broken cells and WC diet microalgae whole cells. After 2 and 12 weeks of feeding, blood was collected for hematological procedures, whereas plasma and mucus were sampled for immune parameters. Head-kidney, liver, and white skeletal muscle were also collected for gene expression measurements. No major differences were observed in hematological nor plasma humoral parameters after 12 weeks irrespective of dietary treatment. Arrays of 29-31 genes were analyzed in the different tissues, revealing an early dietary effect (2 weeks) in a tissue-specific pattern. In the liver, the major effect was found in the GH/IGF axis and in muscle there was a late downregulation of myostatin (mstn) gene, mainly due to WC diet, even though all fish had similar growth performance. Regarding the head-kidney, BC diet led to alpha-2-macroglobulin (a2m) gene upregulation. Also, the same treatment showed increased mucus alternative complement pathway and bactericidal activity at 2 and 12 weeks, respectively. Hence, it seems that BC diet has a potential stimulatory effect that might be relevant as a prophylactic measure before a predictable stressful event.
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1007/s10811-021-02377-4
dc.identifier.issn0921-8971
dc.identifier.urihttp://hdl.handle.net/10400.1/17036
dc.language.isoeng
dc.peerreviewedyes
dc.publisherSpringer
dc.relationMulti-product Integrated bioRefinery of Algae: from Carbon dioxide and Light Energy to high-value Specialties
dc.relationInterdisciplinary Centre of Marine and Environmental Research
dc.relationInterdisciplinary Centre of Marine and Environmental Research
dc.relationImproving health and grwth in gilthead seabream Sparus aurata through fortified nutrition: discovering new nutraceuticals from marine bio-refineries
dc.relationAmino acids as key mediators of immune status and nutrional condition in fish
dc.subjectGilthead seabream
dc.subjectPhaeodactylum tricornutum
dc.subjectDiatom
dc.subjectFishmeal-free diet
dc.subjectFeed additive
dc.subjectInnate immunity
dc.subjectImmunonutrition
dc.subject.otherBiotechnology & Applied Microbiology; Marine & Freshwater Biology
dc.titleHealth status in gilthead seabream (Sparus aurata) juveniles fed diets devoid of fishmeal and supplemented with Phaeodactylum tricornutum
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleMulti-product Integrated bioRefinery of Algae: from Carbon dioxide and Light Energy to high-value Specialties
oaire.awardTitleInterdisciplinary Centre of Marine and Environmental Research
oaire.awardTitleInterdisciplinary Centre of Marine and Environmental Research
oaire.awardTitleImproving health and grwth in gilthead seabream Sparus aurata through fortified nutrition: discovering new nutraceuticals from marine bio-refineries
oaire.awardTitleAmino acids as key mediators of immune status and nutrional condition in fish
oaire.awardURIinfo:eu-repo/grantAgreement/EC/FP7/613588/EU
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04423%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04423%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/FARH/PD%2FBDE%2F129262%2F2017/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//PDE%2FBDE%2F114436%2F2016/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/Investigador FCT/IF%2F00197%2F2015%2FCP1277%2FCT0001/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/Investigador FCT/IF%2F00482%2F2014%2FCP1217%2FCT0005/PT
oaire.citation.endPage996
oaire.citation.issue2
oaire.citation.startPage979
oaire.citation.titleJournal of Applied Phycology
oaire.citation.volume33
oaire.fundingStreamFP7
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamFARH
oaire.fundingStreamInvestigador FCT
oaire.fundingStreamInvestigador FCT
person.familyNameEngrola
person.givenNameSofia
person.identifier237846
person.identifier.ciencia-idA610-29E7-9B83
person.identifier.orcid0000-0002-5244-5541
person.identifier.ridA-2485-2012
person.identifier.scopus-author-id8669620600
project.funder.identifierhttp://doi.org/10.13039/501100008530
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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
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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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