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Wild Leporinus friderici induced spawning with different dose of mGnRHa and metoclopramide or carp pituitary extract

dc.contributor.authorSouza, Thiago Goncalves de [UNESP]
dc.contributor.authorKuradomi, Rafael Yutaka [UNESP]
dc.contributor.authorRodrigues, Suely Marlene
dc.contributor.authorBatlouni, Sergio Ricardo [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniv Fed Amazonas
dc.contributor.institutionPiscicultura Projeto Peixes
dc.date.accessioned2020-12-10T20:02:16Z
dc.date.available2020-12-10T20:02:16Z
dc.date.issued2020-01-01
dc.description.abstractBreeding technology is of utmost importance for reproduction of wild fish in captivity for the reintroduction and selective breeding programs purposes. The main challenge is that when applied to wild undomesticated specimens, conventional protocols often cause breeders and/or embryo mortality and spawning failure. In this study, we evaluated the reproductive performance of wild Leporinus friderici, a great importance fish for subsistence fishing in South American rivers, applying conventional and lower-dose hormonal therapies by means of two consecutive experiments. In the first, a conventional (0.5 and 5.5 mg/kg) and a lower carp pituitary extract (CPE) dose (0.5 and 1.0 mg/kg) were applied. In the second, a conventional mammalian GnRH analogue associated with metoclopramide (mGnRHa + MET) (40 mu g mGnRHa + 20 mg MET/kg) and a lower dose (4 mu g mGnRHa + 2 mg MET/kg and 8 mu g + 4 mg of mGnRHa + MET/kg) were applied. Ovulation was observed in all treatments, however, only lower CPE protocol provided viable embryos. High levels of 17 alpha,20 beta-dihydroxy-4-pregnen-3-one (DHP) and 17 beta estradiol (E-2) detected in conventional, but not in lower CPE dose, at ovulation, might be associated to the mortality of the embryos. The use of lower CPE dose applied here was the best way to obtain L. friderici viable embryos. These results directly contribute to the knowledge about poorly explored effects of reproductive management and hormonal therapies in wild-type breeders, showing that the use of reduced doses may be an alternative to reproductive success.en
dc.description.affiliationUniv Estadual Paulista, Ctr Aquicultura, Jaboticabal, SP, Brazil
dc.description.affiliationUniv Fed Amazonas, Inst Ciencias Exatas & Tecnol, Itacoatiara, AM, Brazil
dc.description.affiliationPiscicultura Projeto Peixes, Sales De Oliveira, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Ctr Aquicultura, Jaboticabal, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipIdFAPESP: 2012/14901-7
dc.description.sponsorshipIdCNPq: 141936/2012-6
dc.format.extent15
dc.identifierhttp://dx.doi.org/10.21451/1984-3143-AR2019-0078
dc.identifier.citationAnimal Reproduction. Belo Horizonte: Brazilian Coll Animal Reproduction, v. 17, n. 1, 15 p., 2020.
dc.identifier.doi10.21451/1984-3143-AR2019-0078
dc.identifier.fileS1984-31432020000100208.pdf
dc.identifier.issn1806-9614
dc.identifier.scieloS1984-31432020000100208
dc.identifier.urihttp://hdl.handle.net/11449/196976
dc.identifier.wosWOS:000539402800007
dc.language.isoeng
dc.publisherBrazilian Coll Animal Reproduction
dc.relation.ispartofAnimal Reproduction
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectLinpe method
dc.subjectovulation
dc.subjectreproduction
dc.titleWild Leporinus friderici induced spawning with different dose of mGnRHa and metoclopramide or carp pituitary extracten
dc.typeArtigo
dcterms.rightsHolderBrazilian Coll Animal Reproduction
dspace.entity.typePublication

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