Reproduction of duckbill catfish Sorubim lima in captivity (Siluriformes, Pimelodidae) by means of hormonal induction

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual de Londrina (UEL)-
Autor(es): dc.contributorDivisão de Restauração e Conservação de Ecossistemas-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorShibatta, Oscar Akio-
Autor(es): dc.creatorNovelli, José Luiz-
Autor(es): dc.creatorDias, João Henrique Pinheiro-
Autor(es): dc.creatorDe Castro Britto, Sandro Geraldo-
Autor(es): dc.creatorFilho, Mauro Caetano-
Data de aceite: dc.date.accessioned2025-08-21T18:26:35Z-
Data de disponibilização: dc.date.available2025-08-21T18:26:35Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2011-01-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.5433/1679-0359.2011v32n1p363-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/226365-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/226365-
Descrição: dc.descriptionSorubim lima is a migratory catfish that do not reproduce in lenthic environments such as those formed after construction of hydroelectric power plants. An alternative for conservation of the species in these environments is the stocking with fingerlings produced in captivity. The technique used to reproduce it in captivity was the induction by carp pituitary hormone, with dosage of 5 mg.kg-1 for females (1 mg.kg-1 in the first dose and 4 mg.kg-1 in the second) and 3 mg.kg-1 for males (1 mg.kg-1 in the first dose and 2 mg.kg-1 in the second), with an interval of 14 hours. The determination of extrusion moment of oocytes was made by monitoring the migration of nucleus from central to peripheral position. After UTA 264.5 (accumulated thermal units) the oocytes were obtained by compression of the ventral region of the female, and male were sacrificed for extraction of sperm. The eggs were kept in an incubator andthe time of hatching of larvae was 370 UTA. The larvae were initially fed with plankton and showed no cannibalism. Moreover, they were not demanding about the food, accepting prepared rations after fifteenth day of life. The weight gain of larvae was very low even close to 20 mm in length (14 days), not exceeding 0.05 mg per day. After that both weight and length increased rapidly.-
Descrição: dc.descriptionDepartamento de Biologia Animal e Vegetal Universidade Estadual de Londrina CCB/UEL-
Descrição: dc.descriptionCompanhia Energética de São Paulo CESP Divisão de Restauração e Conservação de Ecossistemas-
Descrição: dc.descriptionLaboratório de Biologia e Ecologia de Peixes Departamento de Morfologia Universidade Estadual Paulista UNESP, Botucatu-
Descrição: dc.descriptionLaboratório de Biologia e Ecologia de Peixes Departamento de Morfologia Universidade Estadual Paulista UNESP, Botucatu-
Formato: dc.format363-372-
Idioma: dc.languagept_BR-
Relação: dc.relationSemina:Ciencias Agrarias-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectCatfish-
Palavras-chave: dc.subjectHipofization-
Palavras-chave: dc.subjectJurupecê-
Palavras-chave: dc.subjectMigratory fishes-
Título: dc.titleReproduction of duckbill catfish Sorubim lima in captivity (Siluriformes, Pimelodidae) by means of hormonal induction-
Título: dc.titleReprodução em cativeiro do jurupecê Sorubim lima (Siluriformes, Pimelodidae) por meio de indução hormonal-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.