Efeitos do herbicida glifosate sobre o crescimento, enzimas digestivas e parâmetros toxicológicos em piavas (Leporinus sp.)
Autor(a) principal: | |
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Data de Publicação: | 2005 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Manancial - Repositório Digital da UFSM |
Texto Completo: | http://repositorio.ufsm.br/handle/1/10930 |
Resumo: | The effects of glyphosate (1.0 and 5.0 mg/L) on growth, digestive enzymes and toxicology parameters were evaluated in piavas (Leporinus sp.) after 90 days of exposure. A control group was kept in water without herbicide. Fish were fed to satiety twice a day with commercial fish pellets (38% crude protein, Purina®). Water quality was kept by suction of food and fecal residues. The water in the box was renewed every 48 h to maintain herbicide concentration constant during the exposure period. After experimental period (90 days) blood was quickly collected for determining hematological parameters. Liver, white muscle, brain, stomach and intestine were removed and use to determine toxicology parameters and digestive enzymes. After 90 days exposure, fish weight gain, specific growth rate, and feed efficiency wede reduced as glyphosate concentration increased in the water. The activity of all digestive enzymes verified increased with the increase of glyphosate concentration. Results indicate that AChE activity significantly decreased in the brain of fish exposed to 5 mg/L of glyphosate, but in the muscle this parameter was increased in the fish exposed to 1mg/L of glyphosate. Exposure to this herbicide produced a decrease in all hematological parameters tested in both concentrations used. Fish exposed to all glyphosate concentrations showed a significant decrease in liver glycogen and glucose, but a significant increase in muscle glycogen after exposure to 5 mg/L herbicide. Muscle glucose was not altered. Lactate and protein (5 mg/L) of fish exposed to all glyphosate concentrations increased in the liver. Similar results were showed in the muscle for lactate, but protein was reduced after exposure to 5 mg/L of glyphosate. These results indicate that glyphosate affect growth, hematologic and metabolic parameters as well digestive enzymes of piavas. All parameters tested may be indicators of herbicide contamination after prolonged exposure. |
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2017-07-042017-07-042005-08-26SALBEGO, Joseânia. Effects of glyphosate on growth, digestive enzymes and toxicology parameters in piavas (Leporinus sp.). 2005. 48 f. Dissertação (Mestrado em Zootecnia) - Universidade Federal de Santa Maria, Santa Maria, 2005.http://repositorio.ufsm.br/handle/1/10930The effects of glyphosate (1.0 and 5.0 mg/L) on growth, digestive enzymes and toxicology parameters were evaluated in piavas (Leporinus sp.) after 90 days of exposure. A control group was kept in water without herbicide. Fish were fed to satiety twice a day with commercial fish pellets (38% crude protein, Purina®). Water quality was kept by suction of food and fecal residues. The water in the box was renewed every 48 h to maintain herbicide concentration constant during the exposure period. After experimental period (90 days) blood was quickly collected for determining hematological parameters. Liver, white muscle, brain, stomach and intestine were removed and use to determine toxicology parameters and digestive enzymes. After 90 days exposure, fish weight gain, specific growth rate, and feed efficiency wede reduced as glyphosate concentration increased in the water. The activity of all digestive enzymes verified increased with the increase of glyphosate concentration. Results indicate that AChE activity significantly decreased in the brain of fish exposed to 5 mg/L of glyphosate, but in the muscle this parameter was increased in the fish exposed to 1mg/L of glyphosate. Exposure to this herbicide produced a decrease in all hematological parameters tested in both concentrations used. Fish exposed to all glyphosate concentrations showed a significant decrease in liver glycogen and glucose, but a significant increase in muscle glycogen after exposure to 5 mg/L herbicide. Muscle glucose was not altered. Lactate and protein (5 mg/L) of fish exposed to all glyphosate concentrations increased in the liver. Similar results were showed in the muscle for lactate, but protein was reduced after exposure to 5 mg/L of glyphosate. These results indicate that glyphosate affect growth, hematologic and metabolic parameters as well digestive enzymes of piavas. All parameters tested may be indicators of herbicide contamination after prolonged exposure.Os efeitos do herbicida glifosate (1,0 e 5,0 mg/L) sobre o crescimento, enzimas digestivas e parâmetros toxicológicos foram avaliados em juvenis de piavas (Leporinus sp.), após 90 dias de exposição. O grupo controle foi mantido em água sem herbicida. Os peixes foram alimentados até a saciedade aparente, duas vezes ao dia, com ração comercial peletizada (38% de proteína bruta, Purina®). A qualidade da água foi mantida através de sifonagem de resíduos de alimento e fezes. A água das caixas foi renovada a cada 48 horas para manter a concentração do glifosate constante durante o período de exposição. Após o período experimental (90 dias), o sangue dos peixes foi rapidamente coletado para determinação dos parâmetros hematológicos. Fígado, músculo branco, cérebro, estômago e intestino foram removidos e utilizados para determinar parâmetros toxicológicos e enzimas digestivas. Depois de 90 dias de exposição, o ganho de peso, taxas de crescimento específico e conversão alimentar diminuíram com o aumento da concentração de glifosate na água. Todas as enzimas digestivas verificadas aumentaram com o aumento da concentração de glifosate. A atividade da acetilcolinesterase (AChE) diminuiu significativamente no cérebro dos peixes expostos a 5 mg/L, e aumentou, no músculo dos peixes expostos a 1mg/L de glifosate. Exposição a este herbicida diminuiu todos os parâmetros hematológicos testados em ambas as concentrações utilizadas, mas redução significativa no glicogênio do fígado e glicose, e aumento no glicogênio muscular, ocorreu apenas em 5 mg/L. A glicose muscular não foi alterada. Lactato dos peixes expostos a todas as concentrações de glifosate, e proteína (5 mg/L) apresentaram um aumento significativo no fígado. Resultados semelhantes, para o lactato, foram encontrados no músculo, mas a proteína diminuiu depois da exposição a 5 mg/L de glifosate. Estes resultados indicam que glifosate afeta parâmetros de crescimento, hematológicos e metabólicos, bem como enzimas digestivas de piavas. Todos os parâmetros testados podem ser indicadores de contaminação por herbicida depois de exposição prolongada.application/pdfporUniversidade Federal de Santa MariaPrograma de Pós-Graduação em ZootecniaUFSMBRZootecniaZootecniaProdução animalPisciculturaPeixesPiavaToxicologiaHerbicida glifosatoGlyphosateGrowthDigestives enzymesHematological parametersToxicology parametersAChEPiavaLeporinus spCNPQ::CIENCIAS AGRARIAS::ZOOTECNIAEfeitos do herbicida glifosate sobre o crescimento, enzimas digestivas e parâmetros toxicológicos em piavas (Leporinus sp.)Effects of glyphosate on growth, digestive enzymes and toxicology parameters in piavas (Leporinus sp.)info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisLoro, Vania Luciahttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4796333D7Barcellos, Leonardo José Gilhttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4763175J2Radünz Neto, Joaohttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4783033E5http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4775335A4Salbego, Joseânia500400000002400500500500500b0918185-c6b7-49df-b8d6-d245d73535b8705281f6-f5f0-48e4-ad5e-288544387d45678ab745-2649-42da-b1c2-59bf4fb53fdd7c9cb6fa-dabc-4436-8ab9-80ce9bd97b6ainfo:eu-repo/semantics/openAccessreponame:Manancial - Repositório Digital da UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMORIGINALJOSEANIASALBEGO.pdfapplication/pdf221843http://repositorio.ufsm.br/bitstream/1/10930/1/JOSEANIASALBEGO.pdffd2259264d9e3b5e7a55cba30d2a60c3MD51TEXTJOSEANIASALBEGO.pdf.txtJOSEANIASALBEGO.pdf.txtExtracted texttext/plain82497http://repositorio.ufsm.br/bitstream/1/10930/2/JOSEANIASALBEGO.pdf.txtb8e938d1a394d5520357ddffbbf857a4MD52THUMBNAILJOSEANIASALBEGO.pdf.jpgJOSEANIASALBEGO.pdf.jpgIM Thumbnailimage/jpeg5682http://repositorio.ufsm.br/bitstream/1/10930/3/JOSEANIASALBEGO.pdf.jpg2abab34431866202c98cf9b85b500a4fMD531/109302017-07-25 12:07:21.306oai:repositorio.ufsm.br:1/10930Repositório Institucionalhttp://repositorio.ufsm.br/PUBhttp://repositorio.ufsm.br/oai/requestopendoar:39132017-07-25T15:07:21Manancial - Repositório Digital da UFSM - Universidade Federal de Santa Maria (UFSM)false |
dc.title.por.fl_str_mv |
Efeitos do herbicida glifosate sobre o crescimento, enzimas digestivas e parâmetros toxicológicos em piavas (Leporinus sp.) |
dc.title.alternative.eng.fl_str_mv |
Effects of glyphosate on growth, digestive enzymes and toxicology parameters in piavas (Leporinus sp.) |
title |
Efeitos do herbicida glifosate sobre o crescimento, enzimas digestivas e parâmetros toxicológicos em piavas (Leporinus sp.) |
spellingShingle |
Efeitos do herbicida glifosate sobre o crescimento, enzimas digestivas e parâmetros toxicológicos em piavas (Leporinus sp.) Salbego, Joseânia Zootecnia Produção animal Piscicultura Peixes Piava Toxicologia Herbicida glifosato Glyphosate Growth Digestives enzymes Hematological parameters Toxicology parameters AChE Piava Leporinus sp CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA |
title_short |
Efeitos do herbicida glifosate sobre o crescimento, enzimas digestivas e parâmetros toxicológicos em piavas (Leporinus sp.) |
title_full |
Efeitos do herbicida glifosate sobre o crescimento, enzimas digestivas e parâmetros toxicológicos em piavas (Leporinus sp.) |
title_fullStr |
Efeitos do herbicida glifosate sobre o crescimento, enzimas digestivas e parâmetros toxicológicos em piavas (Leporinus sp.) |
title_full_unstemmed |
Efeitos do herbicida glifosate sobre o crescimento, enzimas digestivas e parâmetros toxicológicos em piavas (Leporinus sp.) |
title_sort |
Efeitos do herbicida glifosate sobre o crescimento, enzimas digestivas e parâmetros toxicológicos em piavas (Leporinus sp.) |
author |
Salbego, Joseânia |
author_facet |
Salbego, Joseânia |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Loro, Vania Lucia |
dc.contributor.advisor1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4796333D7 |
dc.contributor.referee1.fl_str_mv |
Barcellos, Leonardo José Gil |
dc.contributor.referee1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4763175J2 |
dc.contributor.referee2.fl_str_mv |
Radünz Neto, Joao |
dc.contributor.referee2Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4783033E5 |
dc.contributor.authorLattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4775335A4 |
dc.contributor.author.fl_str_mv |
Salbego, Joseânia |
contributor_str_mv |
Loro, Vania Lucia Barcellos, Leonardo José Gil Radünz Neto, Joao |
dc.subject.por.fl_str_mv |
Zootecnia Produção animal Piscicultura Peixes Piava Toxicologia Herbicida glifosato |
topic |
Zootecnia Produção animal Piscicultura Peixes Piava Toxicologia Herbicida glifosato Glyphosate Growth Digestives enzymes Hematological parameters Toxicology parameters AChE Piava Leporinus sp CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA |
dc.subject.eng.fl_str_mv |
Glyphosate Growth Digestives enzymes Hematological parameters Toxicology parameters AChE Piava Leporinus sp |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA |
description |
The effects of glyphosate (1.0 and 5.0 mg/L) on growth, digestive enzymes and toxicology parameters were evaluated in piavas (Leporinus sp.) after 90 days of exposure. A control group was kept in water without herbicide. Fish were fed to satiety twice a day with commercial fish pellets (38% crude protein, Purina®). Water quality was kept by suction of food and fecal residues. The water in the box was renewed every 48 h to maintain herbicide concentration constant during the exposure period. After experimental period (90 days) blood was quickly collected for determining hematological parameters. Liver, white muscle, brain, stomach and intestine were removed and use to determine toxicology parameters and digestive enzymes. After 90 days exposure, fish weight gain, specific growth rate, and feed efficiency wede reduced as glyphosate concentration increased in the water. The activity of all digestive enzymes verified increased with the increase of glyphosate concentration. Results indicate that AChE activity significantly decreased in the brain of fish exposed to 5 mg/L of glyphosate, but in the muscle this parameter was increased in the fish exposed to 1mg/L of glyphosate. Exposure to this herbicide produced a decrease in all hematological parameters tested in both concentrations used. Fish exposed to all glyphosate concentrations showed a significant decrease in liver glycogen and glucose, but a significant increase in muscle glycogen after exposure to 5 mg/L herbicide. Muscle glucose was not altered. Lactate and protein (5 mg/L) of fish exposed to all glyphosate concentrations increased in the liver. Similar results were showed in the muscle for lactate, but protein was reduced after exposure to 5 mg/L of glyphosate. These results indicate that glyphosate affect growth, hematologic and metabolic parameters as well digestive enzymes of piavas. All parameters tested may be indicators of herbicide contamination after prolonged exposure. |
publishDate |
2005 |
dc.date.issued.fl_str_mv |
2005-08-26 |
dc.date.accessioned.fl_str_mv |
2017-07-04 |
dc.date.available.fl_str_mv |
2017-07-04 |
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info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
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masterThesis |
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publishedVersion |
dc.identifier.citation.fl_str_mv |
SALBEGO, Joseânia. Effects of glyphosate on growth, digestive enzymes and toxicology parameters in piavas (Leporinus sp.). 2005. 48 f. Dissertação (Mestrado em Zootecnia) - Universidade Federal de Santa Maria, Santa Maria, 2005. |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufsm.br/handle/1/10930 |
identifier_str_mv |
SALBEGO, Joseânia. Effects of glyphosate on growth, digestive enzymes and toxicology parameters in piavas (Leporinus sp.). 2005. 48 f. Dissertação (Mestrado em Zootecnia) - Universidade Federal de Santa Maria, Santa Maria, 2005. |
url |
http://repositorio.ufsm.br/handle/1/10930 |
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por |
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