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Recombinant vs purified mammal gonadotropins as maturation hormonal treatments of European eel males

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Recombinant vs purified mammal gonadotropins as maturation hormonal treatments of European eel males

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dc.contributor.author Herranz-Jusdado, Juan Germán es_ES
dc.contributor.author Rozenfeld, Christoffer es_ES
dc.contributor.author MORINI, MARINA es_ES
dc.contributor.author Pérez Igualada, Luz María es_ES
dc.contributor.author Asturiano Nemesio, Juan Francisco es_ES
dc.contributor.author Gallego Albiach, Victor es_ES
dc.date.accessioned 2019-05-08T20:32:22Z
dc.date.available 2019-05-08T20:32:22Z
dc.date.issued 2019 es_ES
dc.identifier.issn 0044-8486 es_ES
dc.identifier.uri http://hdl.handle.net/10251/120151
dc.description.abstract [EN] In the past three decades the European eel Anguilla anguilla experienced up to 99% decline in recruitment in some parts of its distribution range, thus breeding in captivity is nowadays considered key in order to save this species. With this in mind, obtaining high quality gametes is fundamental, as is the ongoing study of new hormonal treatments in order to improve current methods. Therefore, the aim of this research study was i) to assess the effect of two hormonal treatments (OVI, a recombinant alpha-choriogonadotropin; and VET, a human chorionic gonadotropin purified from female urine) on the reproductive performance of European eel males, and, after choosing the best hormone, ii) to compare the effects of three doses in order to cut the costs of artificial maturation. Our results indicated that the type of hormone used (recombinant vs purified gonadotropins) significantly affected the progression of spermiation in European eel males, and that the recombinant hormone (OVI) produced better results in terms of sperm quantity and quality in most of the weeks of the treatment, remaining thus an effective treatment to induce spermiation in this species. On the other hand, in terms of the doses experiment, our results showed that from the lowest to the highest dose (0.25 to 1.5 IU/g fish) all the treatments were able to induce the whole spermiation process. However, a weekly dose of 1.5 IU/g fish of recombinant hormone (OVI) was necessary in order to provide a notable amount (volume and density) of high quality (motility and velocity) samples throughout the treatment. Finally, the economic analysis demonstrated that the recombinant hormone (OVI, 1.5 IU/g fish) had a greater profitability than the other treatments, making it possible to obtain high-quality sperm for a lower price. In this context, and considering the fact that in the first few weeks of any hormonal treatment there is no high-quality sperm production, long-term hormonal therapies are necessary in order to lessen the cost of high-quality European eel sperm. es_ES
dc.description.sponsorship This project has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No. 642893 (ETN IMPRESS). VG has a postdoc grant from the UPV (PAID-10-16). es_ES
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation UPV/PAID-10-16 es_ES
dc.relation.ispartof Aquaculture es_ES
dc.rights Reconocimiento (by) es_ES
dc.subject Sperm es_ES
dc.subject CASA es_ES
dc.subject Motility es_ES
dc.subject Hormones es_ES
dc.subject Anguilla es_ES
dc.subject.classification PRODUCCION ANIMAL es_ES
dc.subject.classification ZOOLOGIA es_ES
dc.title Recombinant vs purified mammal gonadotropins as maturation hormonal treatments of European eel males es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.aquaculture.2018.12.015 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/EC/H2020/642893/EU/Improved production strategies for endangered freshwater species./
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ciencia Animal - Departament de Ciència Animal es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto de Ciencia y Tecnología Animal - Institut de Ciència i Tecnologia Animal es_ES
dc.description.bibliographicCitation Herranz-Jusdado, JG.; Rozenfeld, C.; Morini, M.; Pérez Igualada, LM.; Asturiano Nemesio, JF.; Gallego Albiach, V. (2019). Recombinant vs purified mammal gonadotropins as maturation hormonal treatments of European eel males. Aquaculture. 501:527-536. https://doi.org/10.1016/j.aquaculture.2018.12.015 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1016/j.aquaculture.2018.12.015 es_ES
dc.description.upvformatpinicio 527 es_ES
dc.description.upvformatpfin 536 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 501 es_ES
dc.relation.pasarela S\373493 es_ES
dc.contributor.funder Universitat Politècnica de València es_ES
dc.contributor.funder European Commission es_ES


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