Reproduction of duckbill catfish Sorubim lima in captivity (Siluriformes, Pimelodidae) by means of hormonal induction
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.5433/1679-0359.2011v32n1p363 http://hdl.handle.net/11449/226365 |
Resumo: | Sorubim 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. |
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Reproduction of duckbill catfish Sorubim lima in captivity (Siluriformes, Pimelodidae) by means of hormonal inductionReprodução em cativeiro do jurupecê Sorubim lima (Siluriformes, Pimelodidae) por meio de indução hormonalCatfishHipofizationJurupecêMigratory fishesSorubim 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.Departamento de Biologia Animal e Vegetal Universidade Estadual de Londrina CCB/UELCompanhia Energética de São Paulo CESP Divisão de Restauração e Conservação de EcossistemasLaboratório de Biologia e Ecologia de Peixes Departamento de Morfologia Universidade Estadual Paulista UNESP, BotucatuLaboratório de Biologia e Ecologia de Peixes Departamento de Morfologia Universidade Estadual Paulista UNESP, BotucatuUniversidade Estadual de Londrina (UEL)Divisão de Restauração e Conservação de EcossistemasUniversidade Estadual Paulista (UNESP)Shibatta, Oscar AkioNovelli, José LuizDias, João Henrique PinheiroDe Castro Britto, Sandro Geraldo [UNESP]Filho, Mauro Caetano2022-04-28T22:37:28Z2022-04-28T22:37:28Z2011-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article363-372http://dx.doi.org/10.5433/1679-0359.2011v32n1p363Semina:Ciencias Agrarias, v. 32, n. 1, p. 363-372, 2011.1679-0359http://hdl.handle.net/11449/22636510.5433/1679-0359.2011v32n1p3632-s2.0-79958695639Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporSemina:Ciencias Agrariasinfo:eu-repo/semantics/openAccess2022-04-28T22:37:28Zoai:repositorio.unesp.br:11449/226365Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-04-28T22:37:28Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Reproduction of duckbill catfish Sorubim lima in captivity (Siluriformes, Pimelodidae) by means of hormonal induction Reprodução em cativeiro do jurupecê Sorubim lima (Siluriformes, Pimelodidae) por meio de indução hormonal |
title |
Reproduction of duckbill catfish Sorubim lima in captivity (Siluriformes, Pimelodidae) by means of hormonal induction |
spellingShingle |
Reproduction of duckbill catfish Sorubim lima in captivity (Siluriformes, Pimelodidae) by means of hormonal induction Shibatta, Oscar Akio Catfish Hipofization Jurupecê Migratory fishes |
title_short |
Reproduction of duckbill catfish Sorubim lima in captivity (Siluriformes, Pimelodidae) by means of hormonal induction |
title_full |
Reproduction of duckbill catfish Sorubim lima in captivity (Siluriformes, Pimelodidae) by means of hormonal induction |
title_fullStr |
Reproduction of duckbill catfish Sorubim lima in captivity (Siluriformes, Pimelodidae) by means of hormonal induction |
title_full_unstemmed |
Reproduction of duckbill catfish Sorubim lima in captivity (Siluriformes, Pimelodidae) by means of hormonal induction |
title_sort |
Reproduction of duckbill catfish Sorubim lima in captivity (Siluriformes, Pimelodidae) by means of hormonal induction |
author |
Shibatta, Oscar Akio |
author_facet |
Shibatta, Oscar Akio Novelli, José Luiz Dias, João Henrique Pinheiro De Castro Britto, Sandro Geraldo [UNESP] Filho, Mauro Caetano |
author_role |
author |
author2 |
Novelli, José Luiz Dias, João Henrique Pinheiro De Castro Britto, Sandro Geraldo [UNESP] Filho, Mauro Caetano |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual de Londrina (UEL) Divisão de Restauração e Conservação de Ecossistemas Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Shibatta, Oscar Akio Novelli, José Luiz Dias, João Henrique Pinheiro De Castro Britto, Sandro Geraldo [UNESP] Filho, Mauro Caetano |
dc.subject.por.fl_str_mv |
Catfish Hipofization Jurupecê Migratory fishes |
topic |
Catfish Hipofization Jurupecê Migratory fishes |
description |
Sorubim 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. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-01-01 2022-04-28T22:37:28Z 2022-04-28T22:37:28Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.5433/1679-0359.2011v32n1p363 Semina:Ciencias Agrarias, v. 32, n. 1, p. 363-372, 2011. 1679-0359 http://hdl.handle.net/11449/226365 10.5433/1679-0359.2011v32n1p363 2-s2.0-79958695639 |
url |
http://dx.doi.org/10.5433/1679-0359.2011v32n1p363 http://hdl.handle.net/11449/226365 |
identifier_str_mv |
Semina:Ciencias Agrarias, v. 32, n. 1, p. 363-372, 2011. 1679-0359 10.5433/1679-0359.2011v32n1p363 2-s2.0-79958695639 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Semina:Ciencias Agrarias |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
363-372 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
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1797789720838668288 |