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Effect of thermal regime on fatty acid dynamics in male European eels (Anguilla anguilla) during hormonally-induced spermatogenesis

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Effect of thermal regime on fatty acid dynamics in male European eels (Anguilla anguilla) during hormonally-induced spermatogenesis

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dc.contributor.author Baeza Ariño, Rosa es_ES
dc.contributor.author Mazzeo, Ilaria es_ES
dc.contributor.author Vilchez Olivencia, Maria Carmen es_ES
dc.contributor.author Gallego Albiach, Victor es_ES
dc.contributor.author Peñaranda, D.S. es_ES
dc.contributor.author Pérez Igualada, Luz María es_ES
dc.contributor.author Asturiano Nemesio, Juan Francisco es_ES
dc.date.accessioned 2016-05-25T07:55:07Z
dc.date.available 2016-05-25T07:55:07Z
dc.date.issued 2014-06-20
dc.identifier.issn 0044-8486
dc.identifier.uri http://hdl.handle.net/10251/64676
dc.description.abstract [EN] Little is known about the role of fat and fatty acids in European eel spermatogenesis. The aim of this research was to study the changes in fat content and to carry out a quantitative analysis of the fatty acid composition of the muscle, liver and gonad of European male eels during hormonally induced sexual maturation. Three different thermal regimes were used (two variable: T10 and T15; and one constant: T20) to replicate the changes in temperature that these fish experience during their transoceanic reproductive migration. Spermatogenesis was reached earlier in treatment T20, suggesting that spermatogenesis in the European eel is closely regulated by water temperature. Although eels lose body mass due to the period of fasting that accompanies gonadal growth, no significant changes were found in the fat and fatty acid content of the muscle during the experimental period. With regard to the liver, the levels of palmitic, eicosapentaenoic (EPA) and docosahexaenoic (DHA) acids increased significantly at the start of the spermiation process in all the thermal treatments. In the testis, levels of EPA, arachidonic acid (ARA) and DHA remained constant during the maturation process whereas the levels of the rest of the fatty acids decreased significantly. The stability of the ARA and EPA levels in the testis may have a physiological significance, whereas the stability of the DHA levels may have a structural significance. The results suggest that the progression of spermiation is influenced by water temperature and demonstrate the importance of EPA, ARA and DHA in European eel reproduction. This study demonstrates that complementary research focusing on the lipid composition of commercial diets could improve the sperm quality of this species. es_ES
dc.description.sponsorship Funded by the European Community's 7th Framework Programme under the Theme 2 "Food, Agriculture and Fisheries, and Biotechnology", grant agreement no. 245257 (PRO-EEL). Victor Gallego, Ilaria Mazzeo and M. Carmen Vilchez had predoctoral grants from the Spanish Ministry of Science and Innovation (MICINN), Generalitat Valenciana, and UPV PAID Programme (2011-S2-02-6521), respectively. David S. Penaranda was supported by a contract co-financed by MICINN and UPV (PTA2011-4948-I). Rosa Baeza was supported by contract financed by PRO-EEL. The authors want to thank Vicente Javier Moya Salvador for his technical assistance with gas chromatography analyses. en_EN
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation info:eu-repo/grantAgreement/EC//245257 es_ES
dc.relation.ispartof Aquaculture es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Muscle es_ES
dc.subject Liver es_ES
dc.subject Gonad es_ES
dc.subject Spermatogenesis es_ES
dc.subject Diets es_ES
dc.subject PUFA es_ES
dc.subject Eel es_ES
dc.subject.classification BIOLOGIA ANIMAL es_ES
dc.subject.classification PRODUCCION ANIMAL es_ES
dc.title Effect of thermal regime on fatty acid dynamics in male European eels (Anguilla anguilla) during hormonally-induced spermatogenesis es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.aquaculture.2014.03.045
dc.relation.projectID info:eu-repo/grantAgreement/MICINN//PTA2011-4948-I/ES/PTA2011-4948-I/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/UPV//PAID-2011-S2-02-6521/ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto de Ciencia y Tecnología Animal - Institut de Ciència i Tecnologia Animal es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ciencia Animal - Departament de Ciència Animal es_ES
dc.description.bibliographicCitation Baeza Ariño, R.; Mazzeo, I.; Vilchez Olivencia, MC.; Gallego Albiach, V.; Peñaranda, D.; Pérez Igualada, LM.; Asturiano Nemesio, JF. (2014). Effect of thermal regime on fatty acid dynamics in male European eels (Anguilla anguilla) during hormonally-induced spermatogenesis. Aquaculture. 430:86-97. https://doi.org/10.1016/j.aquaculture.2014.03.045 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://dx.doi.org/10.1016/j.aquaculture.2014.03.045 es_ES
dc.description.upvformatpinicio 86 es_ES
dc.description.upvformatpfin 97 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 430 es_ES
dc.relation.senia 269000 es_ES
dc.identifier.eissn 1873-5622
dc.contributor.funder Ministerio de Ciencia e Innovación es_ES
dc.contributor.funder Universitat Politècnica de València es_ES
dc.contributor.funder Generalitat Valenciana es_ES
dc.contributor.funder European Commission


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