Incubation of eggs and larvae of pacu (Piaractus mesopotamicus holmberg, 1887) in israeli and woynarovich incubators

Detalhes bibliográficos
Autor(a) principal: Jayme Guerreiro, Luis Ricardo
Data de Publicação: 2011
Outros Autores: Dias Dias, Jeferson Antonio, Fornari, Darci Carlos, Pereira Ribeiro, Ricardo, Zanoni, Marco Anonio
Tipo de documento: Artigo
Idioma: por
Título da fonte: Semina. Ciências Agrárias (Online)
Texto Completo: https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/3497
Resumo: The aim of this work was to evaluate the fertilization and hatching rates of eggs of Piaractus mesopotamicus hormonally induced, and the survivorship and percentage of defective larvae at 48 and 72 hours after hatching in Israeli and Woynarovich hatcheries. A pool of eggs and larvae obtained from ten females and twenty males was used. The experimental design was completely randomized with two treatments and four replicates. The fertilization averages did not demonstrate significant differences (P > 0,05) between the treatments. Hatching values (%) were significantly higher (P < 0,05) in Woynarovich hatcheries; the survivorship (%) of the larvae at 48 and 72 hours after hatching were significantly higher (P < 0,05) in Israeli hatcheries; and the percentage of defective larvae was significantly lower (P < 0,05) in Israeli hatcheries in both evaluation times. According to the results, the Israeli hatcheries present better conditions for larvae survivorship.
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spelling Incubation of eggs and larvae of pacu (Piaractus mesopotamicus holmberg, 1887) in israeli and woynarovich incubatorsIncubação de ovos e larvas de pacu (Piaractus mesopotamicus holmberg, 1887) em incubadoras do tipo israelense e woynarovichLarvae cultureLarvae development.Desenvolvimento larvalLarvicultura.The aim of this work was to evaluate the fertilization and hatching rates of eggs of Piaractus mesopotamicus hormonally induced, and the survivorship and percentage of defective larvae at 48 and 72 hours after hatching in Israeli and Woynarovich hatcheries. A pool of eggs and larvae obtained from ten females and twenty males was used. The experimental design was completely randomized with two treatments and four replicates. The fertilization averages did not demonstrate significant differences (P > 0,05) between the treatments. Hatching values (%) were significantly higher (P < 0,05) in Woynarovich hatcheries; the survivorship (%) of the larvae at 48 and 72 hours after hatching were significantly higher (P < 0,05) in Israeli hatcheries; and the percentage of defective larvae was significantly lower (P < 0,05) in Israeli hatcheries in both evaluation times. According to the results, the Israeli hatcheries present better conditions for larvae survivorship.O objetivo neste estudo foi avaliar as taxas de fertilização e eclosão dos ovos de Piaractus mesopotamicus induzidos com extrato de hipófise, além da sobrevivência e porcentagem de larvas defeituosas após 48 e 72 horas da eclosão em incubadoras do tipo “Israelense” e “Woynarovich”. Utilizou se um “Pool” de ovos e larvas obtidas de 10 fêmeas e 20 machos. O delineamento experimental foi totalmente casualisado com dois tratamentos e quatro repetições. As médias de fertilização não demonstraram diferenças significativas (P > 0,05) entre as incubadoras. Os valores de eclosão (%) foram significativamente maiores (P < 0,05) nas incubadoras do tipo Woynarovich, a sobrevivência (%) das larvas após 48 horas da eclosão foi significativamente maior (P < 0,05) nas incubadoras do tipo Israelense, o mesmo foi observado após 72 horas da eclosão. A porcentagem de larvas defeituosas foi significativamente menor (P < 0,05) nas incubadoras do tipo israelense nos dois períodos avaliados. De acordo com os resultados obtidos, as incubadoras do tipo “Israelense” demonstraram melhores condições para a sobrevivência das larvas.UEL2011-07-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPesquisa Empírica de Campoapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/349710.5433/1679-0359.2011v32n2p789Semina: Ciências Agrárias; Vol. 32 No. 2 (2011); 789-794Semina: Ciências Agrárias; v. 32 n. 2 (2011); 789-7941679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELporhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/3497/8437Jayme Guerreiro, Luis RicardoDias Dias, Jeferson AntonioFornari, Darci CarlosPereira Ribeiro, RicardoZanoni, Marco Anonioinfo:eu-repo/semantics/openAccess2016-03-09T17:00:23Zoai:ojs.pkp.sfu.ca:article/3497Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2016-03-09T17:00:23Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false
dc.title.none.fl_str_mv Incubation of eggs and larvae of pacu (Piaractus mesopotamicus holmberg, 1887) in israeli and woynarovich incubators
Incubação de ovos e larvas de pacu (Piaractus mesopotamicus holmberg, 1887) em incubadoras do tipo israelense e woynarovich
title Incubation of eggs and larvae of pacu (Piaractus mesopotamicus holmberg, 1887) in israeli and woynarovich incubators
spellingShingle Incubation of eggs and larvae of pacu (Piaractus mesopotamicus holmberg, 1887) in israeli and woynarovich incubators
Jayme Guerreiro, Luis Ricardo
Larvae culture
Larvae development.
Desenvolvimento larval
Larvicultura.
title_short Incubation of eggs and larvae of pacu (Piaractus mesopotamicus holmberg, 1887) in israeli and woynarovich incubators
title_full Incubation of eggs and larvae of pacu (Piaractus mesopotamicus holmberg, 1887) in israeli and woynarovich incubators
title_fullStr Incubation of eggs and larvae of pacu (Piaractus mesopotamicus holmberg, 1887) in israeli and woynarovich incubators
title_full_unstemmed Incubation of eggs and larvae of pacu (Piaractus mesopotamicus holmberg, 1887) in israeli and woynarovich incubators
title_sort Incubation of eggs and larvae of pacu (Piaractus mesopotamicus holmberg, 1887) in israeli and woynarovich incubators
author Jayme Guerreiro, Luis Ricardo
author_facet Jayme Guerreiro, Luis Ricardo
Dias Dias, Jeferson Antonio
Fornari, Darci Carlos
Pereira Ribeiro, Ricardo
Zanoni, Marco Anonio
author_role author
author2 Dias Dias, Jeferson Antonio
Fornari, Darci Carlos
Pereira Ribeiro, Ricardo
Zanoni, Marco Anonio
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Jayme Guerreiro, Luis Ricardo
Dias Dias, Jeferson Antonio
Fornari, Darci Carlos
Pereira Ribeiro, Ricardo
Zanoni, Marco Anonio
dc.subject.por.fl_str_mv Larvae culture
Larvae development.
Desenvolvimento larval
Larvicultura.
topic Larvae culture
Larvae development.
Desenvolvimento larval
Larvicultura.
description The aim of this work was to evaluate the fertilization and hatching rates of eggs of Piaractus mesopotamicus hormonally induced, and the survivorship and percentage of defective larvae at 48 and 72 hours after hatching in Israeli and Woynarovich hatcheries. A pool of eggs and larvae obtained from ten females and twenty males was used. The experimental design was completely randomized with two treatments and four replicates. The fertilization averages did not demonstrate significant differences (P > 0,05) between the treatments. Hatching values (%) were significantly higher (P < 0,05) in Woynarovich hatcheries; the survivorship (%) of the larvae at 48 and 72 hours after hatching were significantly higher (P < 0,05) in Israeli hatcheries; and the percentage of defective larvae was significantly lower (P < 0,05) in Israeli hatcheries in both evaluation times. According to the results, the Israeli hatcheries present better conditions for larvae survivorship.
publishDate 2011
dc.date.none.fl_str_mv 2011-07-12
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Pesquisa Empírica de Campo
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/3497
10.5433/1679-0359.2011v32n2p789
url https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/3497
identifier_str_mv 10.5433/1679-0359.2011v32n2p789
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/3497/8437
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv UEL
publisher.none.fl_str_mv UEL
dc.source.none.fl_str_mv Semina: Ciências Agrárias; Vol. 32 No. 2 (2011); 789-794
Semina: Ciências Agrárias; v. 32 n. 2 (2011); 789-794
1679-0359
1676-546X
reponame:Semina. Ciências Agrárias (Online)
instname:Universidade Estadual de Londrina (UEL)
instacron:UEL
instname_str Universidade Estadual de Londrina (UEL)
instacron_str UEL
institution UEL
reponame_str Semina. Ciências Agrárias (Online)
collection Semina. Ciências Agrárias (Online)
repository.name.fl_str_mv Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)
repository.mail.fl_str_mv semina.agrarias@uel.br
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