Respostas do matrinxã ( Brycon cephalus) a anestésicos e estressores
Autor(a) principal: | |
---|---|
Data de Publicação: | 2005 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFSCAR |
Texto Completo: | https://repositorio.ufscar.br/handle/ufscar/5412 |
Resumo: | Commercial fish farming has been viable for industry in Brazil. National production is around 120 thousand tons/year. In this way, large amount of fishes are handled every day in our farms. However, drastic consequences are sometimes observed due to the high sensitivity of some tropical fish to handling procedures. Matrinxã (Brycon cephalus) is a native species that is very sensitive to handling, in which mortality is usually observed. So stress studies in tropical fish in aquaculture facilities are important as farmers need more information about these fish stress and alternatives for fish management. The present work evaluated some matrinxã stress responses, and the use of anesthetics as eugenol, benzocaine and 2-phenoxyethanol to reduce the stress during field procedures. Matrinxã is responsive to fish farm stressors as handling, transport and thermal shocks. Increases of plasma cortisol, glucose, lactate and ammonia indicated acute primary and secondary stress responses of matrinxã. Plasma ions (Na, Cl and K) and protein unbalance were observed. Liver glycogen indicated the high energetic cost to matrinxã cope with the studied stressors. Stress responses at the cellular level were not detected in matrinxã as hsp-70 expressions were not altered. Other proteins expressions may be related to matrinxã celular stress, which requires new studies in the future. |
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Inoue, Luís Antônio Kioshi AokiMoraes, Gilbertohttp://lattes.cnpq.br/4427903557163246http://lattes.cnpq.br/1785821236925346fc31f148-b0a9-4fd0-b2d5-5f444bb170f92016-06-02T20:20:35Z2005-03-222016-06-02T20:20:35Z2005-01-04INOUE, Luís Antônio Kioshi Aoki. Physiological stress responses of matrinxã (Brycon cephalus) to anesthetics and fish farm stressors. 2005. 167 f. Tese (Doutorado em Ciências Biológicas) - Universidade Federal de São Carlos, São Carlos, 2005.https://repositorio.ufscar.br/handle/ufscar/5412Commercial fish farming has been viable for industry in Brazil. National production is around 120 thousand tons/year. In this way, large amount of fishes are handled every day in our farms. However, drastic consequences are sometimes observed due to the high sensitivity of some tropical fish to handling procedures. Matrinxã (Brycon cephalus) is a native species that is very sensitive to handling, in which mortality is usually observed. So stress studies in tropical fish in aquaculture facilities are important as farmers need more information about these fish stress and alternatives for fish management. The present work evaluated some matrinxã stress responses, and the use of anesthetics as eugenol, benzocaine and 2-phenoxyethanol to reduce the stress during field procedures. Matrinxã is responsive to fish farm stressors as handling, transport and thermal shocks. Increases of plasma cortisol, glucose, lactate and ammonia indicated acute primary and secondary stress responses of matrinxã. Plasma ions (Na, Cl and K) and protein unbalance were observed. Liver glycogen indicated the high energetic cost to matrinxã cope with the studied stressors. Stress responses at the cellular level were not detected in matrinxã as hsp-70 expressions were not altered. Other proteins expressions may be related to matrinxã celular stress, which requires new studies in the future.A piscicultura é uma das atividades agropecuárias que mais cresceu no Brasil recentemente, sendo a produção nacional de aproximadamente 120 mil toneladas por ano. Assim grande quantidade de peixes vivos é rotineiramente manuseada nas fazendas brasileiras, onde é também muito comum o relato de prejuízos por mortalidade de peixes manuseados de forma inadequada. O matrinxã (Brycon cephalus) é uma das espécies nativas, que mais tem chamado a atenção nesse sentido, ressaltando as diferentes práticas de manejo como relevantes fontes de estresse. O presente trabalho visou avaliar os principais estressores presentes nas unidades de piscicultura (manuseio, transporte e mudanças de temperatura), associando-se tentativas de redução desse estresse através do uso de anestésicos como o eugenol, a benzocaina e o fenoxietanol. Nossos resultados indicam que o matrinxã é uma espécie bastante responsiva a esses estressores, evidenciando as principais respostas fisiológicas ao estresse, elucidados através das alterações das concentrações plasmáticas de cortisol, glicose, lactato, amônia, proteina e íons (Na, Cl, K). O custo energético alto para o matrinxã tolerar as práticas de manejo foi também evidenciado através das reduções observadas dos valores de glicogênio hepático. O matrinxã não evidenciou o estresse celular ao manuseio e choques térmicos como se esperava aumentos na expressão da proteína de estresse (hsp-70) em seus tecidos frente a esses estressores. Aumentos nas expressões de outras proteínas de estresse parecem ainda estar relacionada ao estresse celular do matrinxã, indicando a necessidade de novos estudos nessa espécie.Universidade Federal de Sao Carlosapplication/pdfporUniversidade Federal de São CarlosPrograma de Pós-Graduação em Genética Evolutiva e Biologia Molecular - PPGGEvUFSCarBRAquiculturaManejoEstresseMatrinxãMatrinxãStressAnestheticsHandlingTransportTemperatureCIENCIAS BIOLOGICAS::GENETICARespostas do matrinxã ( Brycon cephalus) a anestésicos e estressoresPhysiological stress responses of matrinxã (Brycon cephalus) to anesthetics and fish farm stressorsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesis-1-10bb657c8-f325-4613-8014-90b39cca7d38info:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFSCARinstname:Universidade Federal de São Carlos (UFSCAR)instacron:UFSCARORIGINAL494.pdfapplication/pdf721790https://repositorio.ufscar.br/bitstream/ufscar/5412/1/494.pdf9eb38ad49a313faf4891d783e8a6e3e9MD51THUMBNAIL494.pdf.jpg494.pdf.jpgIM Thumbnailimage/jpeg5693https://repositorio.ufscar.br/bitstream/ufscar/5412/2/494.pdf.jpga7bd161188ef38b30e1611b83672edd4MD52ufscar/54122023-09-18 18:31:06.915oai:repositorio.ufscar.br:ufscar/5412Repositório InstitucionalPUBhttps://repositorio.ufscar.br/oai/requestopendoar:43222023-09-18T18:31:06Repositório Institucional da UFSCAR - Universidade Federal de São Carlos (UFSCAR)false |
dc.title.por.fl_str_mv |
Respostas do matrinxã ( Brycon cephalus) a anestésicos e estressores |
dc.title.alternative.eng.fl_str_mv |
Physiological stress responses of matrinxã (Brycon cephalus) to anesthetics and fish farm stressors |
title |
Respostas do matrinxã ( Brycon cephalus) a anestésicos e estressores |
spellingShingle |
Respostas do matrinxã ( Brycon cephalus) a anestésicos e estressores Inoue, Luís Antônio Kioshi Aoki Aquicultura Manejo Estresse Matrinxã Matrinxã Stress Anesthetics Handling Transport Temperature CIENCIAS BIOLOGICAS::GENETICA |
title_short |
Respostas do matrinxã ( Brycon cephalus) a anestésicos e estressores |
title_full |
Respostas do matrinxã ( Brycon cephalus) a anestésicos e estressores |
title_fullStr |
Respostas do matrinxã ( Brycon cephalus) a anestésicos e estressores |
title_full_unstemmed |
Respostas do matrinxã ( Brycon cephalus) a anestésicos e estressores |
title_sort |
Respostas do matrinxã ( Brycon cephalus) a anestésicos e estressores |
author |
Inoue, Luís Antônio Kioshi Aoki |
author_facet |
Inoue, Luís Antônio Kioshi Aoki |
author_role |
author |
dc.contributor.authorlattes.por.fl_str_mv |
http://lattes.cnpq.br/1785821236925346 |
dc.contributor.author.fl_str_mv |
Inoue, Luís Antônio Kioshi Aoki |
dc.contributor.advisor1.fl_str_mv |
Moraes, Gilberto |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/4427903557163246 |
dc.contributor.authorID.fl_str_mv |
fc31f148-b0a9-4fd0-b2d5-5f444bb170f9 |
contributor_str_mv |
Moraes, Gilberto |
dc.subject.por.fl_str_mv |
Aquicultura Manejo Estresse Matrinxã |
topic |
Aquicultura Manejo Estresse Matrinxã Matrinxã Stress Anesthetics Handling Transport Temperature CIENCIAS BIOLOGICAS::GENETICA |
dc.subject.eng.fl_str_mv |
Matrinxã Stress Anesthetics Handling Transport Temperature |
dc.subject.cnpq.fl_str_mv |
CIENCIAS BIOLOGICAS::GENETICA |
description |
Commercial fish farming has been viable for industry in Brazil. National production is around 120 thousand tons/year. In this way, large amount of fishes are handled every day in our farms. However, drastic consequences are sometimes observed due to the high sensitivity of some tropical fish to handling procedures. Matrinxã (Brycon cephalus) is a native species that is very sensitive to handling, in which mortality is usually observed. So stress studies in tropical fish in aquaculture facilities are important as farmers need more information about these fish stress and alternatives for fish management. The present work evaluated some matrinxã stress responses, and the use of anesthetics as eugenol, benzocaine and 2-phenoxyethanol to reduce the stress during field procedures. Matrinxã is responsive to fish farm stressors as handling, transport and thermal shocks. Increases of plasma cortisol, glucose, lactate and ammonia indicated acute primary and secondary stress responses of matrinxã. Plasma ions (Na, Cl and K) and protein unbalance were observed. Liver glycogen indicated the high energetic cost to matrinxã cope with the studied stressors. Stress responses at the cellular level were not detected in matrinxã as hsp-70 expressions were not altered. Other proteins expressions may be related to matrinxã celular stress, which requires new studies in the future. |
publishDate |
2005 |
dc.date.available.fl_str_mv |
2005-03-22 2016-06-02T20:20:35Z |
dc.date.issued.fl_str_mv |
2005-01-04 |
dc.date.accessioned.fl_str_mv |
2016-06-02T20:20:35Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
INOUE, Luís Antônio Kioshi Aoki. Physiological stress responses of matrinxã (Brycon cephalus) to anesthetics and fish farm stressors. 2005. 167 f. Tese (Doutorado em Ciências Biológicas) - Universidade Federal de São Carlos, São Carlos, 2005. |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufscar.br/handle/ufscar/5412 |
identifier_str_mv |
INOUE, Luís Antônio Kioshi Aoki. Physiological stress responses of matrinxã (Brycon cephalus) to anesthetics and fish farm stressors. 2005. 167 f. Tese (Doutorado em Ciências Biológicas) - Universidade Federal de São Carlos, São Carlos, 2005. |
url |
https://repositorio.ufscar.br/handle/ufscar/5412 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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Universidade Federal de São Carlos |
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Programa de Pós-Graduação em Genética Evolutiva e Biologia Molecular - PPGGEv |
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UFSCar |
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BR |
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Universidade Federal de São Carlos |
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