GnRHa implants and temperature modulate Lambari-do-rabo-amarelo, Astyanax altiparanae (Characiformes: Characidae) induced reproduction out of the reproductive season

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorHellenic Center for Marine Research-
Autor(es): dc.contributorUniversidade Federal do Amazonas-
Autor(es): dc.contributorUniversidade Anhembi Morumbi-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.creatorBrambila-Souza, Gabriela-
Autor(es): dc.creatorMylonas, Constantinos Chrysanthos-
Autor(es): dc.creatorde Mello, Paulo Henrique-
Autor(es): dc.creatorKuradomi, Rafael Yutaka-
Autor(es): dc.creatorBatlouni, Sergio Ricardo-
Autor(es): dc.creatorTolussi, Carlos Eduardo-
Autor(es): dc.creatorMoreira, Renata Guimarães-
Data de aceite: dc.date.accessioned2025-08-21T22:12:52Z-
Data de disponibilização: dc.date.available2025-08-21T22:12:52Z-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2020-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1111/are.15435-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/229072-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/229072-
Descrição: dc.descriptionWe evaluated the effect of gonadotropin in controlled-release implant together with temperature manipulation in the reproduction of Astyanax altiparanae (lambari) during the non-breeding season. Three groups of adult females were maintained at 20°C and three at 28°C. For each temperature, one group was treated with 4 μg GnRHa g−1, other with 8 μg GnRHa g−1 and other was sham implanted as a control during 4 weeks. Afterwards, 4 females/experimental group were induced to spawn with human chorionic gonadotropin, while 4 females/group were injected with saline. GnRHa implants increased fshβ and lhβ gene expression in females maintained at 28°C. The vtgA gene expression increased in the high GnRHa dose at 20°C, while this higher GnRHa dose associated with the higher temperature increased Gonadosomatic Index. The hCG injection increased the plasma Mature Induction Steroid levels and trigger ovulation, except in control at 28°C. The control females at 20°C spawned but with low reproductive performance, confirming that this is not a limiting temperature for reproduction. The administration of GnRHa as implant increased gonadotropin gene expression at 28°C, temperature at which GSI also increased. Qualitatively, the implants improved reproduction at 20°C, providing offspring out of the reproductive season, improving lambari production throughout the year.-
Descrição: dc.descriptionUNESP- Universidade Estadual Paulista - Centro de Aquicultura (CAUNESP)-
Descrição: dc.descriptionInstitute of Marine Biology Biotechnology and Aquaculture Hellenic Center for Marine Research-
Descrição: dc.descriptionUniversidade Federal do Amazonas-
Descrição: dc.descriptionUniversidade Anhembi Morumbi-
Descrição: dc.descriptionInstituto de Biociências –Universidade de São Paulo (USP)-
Descrição: dc.descriptionUNESP- Universidade Estadual Paulista - Centro de Aquicultura (CAUNESP)-
Idioma: dc.languageen-
Relação: dc.relationAquaculture Research-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectgonadotropins-
Palavras-chave: dc.subjectneotropical fish-
Palavras-chave: dc.subjectovaries-
Palavras-chave: dc.subjectsteroids-
Palavras-chave: dc.subjectvitellogenin-
Título: dc.titleGnRHa implants and temperature modulate Lambari-do-rabo-amarelo, Astyanax altiparanae (Characiformes: Characidae) induced reproduction out of the reproductive season-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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