Publication
The use of egg quality parameters to evaluate the effect of a diet supplemented with algae and antioxidants in turbot (Scophthalmus maximus)
dc.contributor.author | Ramos Júdez, Sandra | |
dc.contributor.author | Fatsini Fernández, Elvira | |
dc.contributor.author | Marrero Alemán, Carlos | |
dc.contributor.author | García-Pichel, Candela | |
dc.contributor.author | Parente, Pedro | |
dc.contributor.author | Medina, D. | |
dc.contributor.author | Castro, C. | |
dc.contributor.author | Cabrita, Elsa | |
dc.contributor.author | Oliveira, Catarina | |
dc.date.accessioned | 2025-03-17T13:21:40Z | |
dc.date.available | 2025-03-17T13:21:40Z | |
dc.date.issued | 2025-05 | |
dc.description.abstract | Enhancing egg quality can be achieved by improving breeders’ diet through the antioxidant content, as oxidative stress could adversely affect egg quality. Micro- and macroalgae species are natural sources of antioxidants and other essential nutrients that can be incorporated in fish feeds. In this study the quality of Scophthalmus maximus eggs were compared between breeders fed a commercial (non-supplemented) diet and those fed a diet enriched with 5 % Arthrospira platensis and 1 % of the iodine-rich Laminaria digitata, further fortified with antioxidants (astaxanthin, vit. C and E) (supplemented diet). Several egg parameters were evaluated. Hierarchical clustering of all the egg batches grouped them into two main categories: higher (≥ 50 % buoyancy) and lower-quality eggs (≤ 30 % buoyancy). The expression of transcripts related to egg quality (ctsz, ccna2), oxidative response (nrf2, cat), and apoptosis (bax, casp3a) was also measured in batches categorized by quality, as well as in higher-quality batches from females fed the commercial versus supplemented diet. Eggs of higher quality (greater buoyancy), regardless of females’ diet, had significantly higher total antioxidant status (TAS) levels (P < 0.05), suggesting TAS as an egg quality marker. The expression of ccna2 was upregulated, while ctsz showed almost no expression in higher-quality eggs but was down-regulated in lower-quality eggs, highlighting their potential as markers of egg quality in turbot. Higher-quality eggs from females fed the supplemented diet exhibited higher TAS, lower superoxide dismutase activity, and an upregulation of nrf2 compared to higher-quality eggs from non supplemented females. This suggests a more efficient cellular mechanism to restore oxidative homeostasis. Supplementing the diet increased the likelihood of achieving ≥80 % buoyant eggs and overall cumulative egg production, contributing to more effective and sustainable turbot farming. | eng |
dc.description.sponsorship | 57/2016/CP1361/CT0007; 01/C05-i02/2022.P148; ALG-05-3559-FSE-000021 | |
dc.identifier.doi | 10.1016/j.aquaculture.2025.742306 | |
dc.identifier.issn | 0044-8486 | |
dc.identifier.uri | http://hdl.handle.net/10400.1/26916 | |
dc.language.iso | eng | |
dc.peerreviewed | yes | |
dc.publisher | Elsevier | |
dc.relation | Mitigation solutions for the reproductive disorder of Senegalese sole cultivation – MITIGASOLE | |
dc.relation | Algarve Centre for Marine Sciences | |
dc.relation | Algarve Centre for Marine Sciences | |
dc.relation | Centre for Marine and Environmental Research | |
dc.relation.ispartof | Aquaculture | |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | |
dc.subject | Microalgae | |
dc.subject | Macroalgae | |
dc.subject | Antioxidants | |
dc.subject | Egg quality parameters | |
dc.subject | Feed supplementation | |
dc.title | The use of egg quality parameters to evaluate the effect of a diet supplemented with algae and antioxidants in turbot (Scophthalmus maximus) | eng |
dc.type | journal article | |
dspace.entity.type | Publication | |
oaire.awardTitle | Mitigation solutions for the reproductive disorder of Senegalese sole cultivation – MITIGASOLE | |
oaire.awardTitle | Algarve Centre for Marine Sciences | |
oaire.awardTitle | Algarve Centre for Marine Sciences | |
oaire.awardTitle | Centre for Marine and Environmental Research | |
oaire.awardURI | info:eu-repo/grantAgreement/FCT/CEEC IND 3ed/2020.04181.CEECIND%2FCP1597%2FCT0002/PT | |
oaire.awardURI | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04326%2F2020/PT | |
oaire.awardURI | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04326%2F2020/PT | |
oaire.awardURI | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0101%2F2020/PT | |
oaire.citation.startPage | 742306 | |
oaire.citation.title | Aquaculture | |
oaire.citation.volume | 601 | |
oaire.fundingStream | CEEC IND 3ed | |
oaire.fundingStream | 6817 - DCRRNI ID | |
oaire.fundingStream | 6817 - DCRRNI ID | |
oaire.fundingStream | 6817 - DCRRNI ID | |
oaire.version | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |
person.familyName | Ramos Júdez | |
person.familyName | Fatsini Fernández | |
person.familyName | Marrero Alemán | |
person.familyName | Parente | |
person.familyName | Cabrita | |
person.familyName | Oliveira | |
person.givenName | Sandra | |
person.givenName | Elvira | |
person.givenName | Carlos | |
person.givenName | Pedro | |
person.givenName | Elsa | |
person.givenName | Catarina | |
person.identifier | https://scholar.google.es/citations?hl=en&pli=1&user=55mbsZIAAAAJ | |
person.identifier.ciencia-id | EA1D-0571-7A6D | |
person.identifier.ciencia-id | 0816-30C5-51AC | |
person.identifier.orcid | 0000-0003-4242-5894 | |
person.identifier.orcid | 0000-0003-0371-5290 | |
person.identifier.orcid | 0000-0002-5726-6710 | |
person.identifier.orcid | 0009-0007-3997-7985 | |
person.identifier.orcid | 0000-0003-3864-8841 | |
person.identifier.orcid | 0000-0002-6679-761X | |
person.identifier.rid | E-8523-2012 | |
person.identifier.scopus-author-id | 26645697000 | |
person.identifier.scopus-author-id | 35433190500 | |
project.funder.identifier | http://doi.org/10.13039/501100001871 | |
project.funder.identifier | http://doi.org/10.13039/501100001871 | |
project.funder.identifier | http://doi.org/10.13039/501100001871 | |
project.funder.identifier | http://doi.org/10.13039/501100001871 | |
project.funder.name | Fundação para a Ciência e a Tecnologia | |
project.funder.name | Fundação para a Ciência e a Tecnologia | |
project.funder.name | Fundação para a Ciência e a Tecnologia | |
project.funder.name | Fundação para a Ciência e a Tecnologia | |
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