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Registro Completo |
Biblioteca(s): |
Embrapa Amapá; Embrapa Unidades Centrais. |
Data corrente: |
30/08/2018 |
Data da última atualização: |
31/10/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
ANDRADE-PORTO, S. M.; RAMOS, C. A.; ROQUE, R.; AFFONSO, E. G.; BARCELLOS, J. F. M.; QUEIROZ, M. N.; ARAÚJO, C. S. O.; TAVARES-DIAS, M. |
Afiliação: |
SANNY M. ANDRADE-PORTO, UFAM; CLEVERSON A. RAMOS, UFAM; ROSEMARY ROQUE, INPA; ELIZABETH G. AFFONSO, INPA; JOSÉ F. M. BARCELLOS, UFAM; MARIETA N. QUEIROZ, Universidade Nilton Lins; CLEUSA S. O. ARAÚJO, UEA; MARCOS TAVARES DIAS, CPAF-AP. |
Título: |
Histopathological evaluation of formalin toxicity in Arapaima gigas (Arapaimidae), the giant fish from Amazon. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Pesquisa Veterinária Brasileira, v. 38, n. 6, p. 1015-1025, Jun. 2018 |
Idioma: |
Inglês |
Conteúdo: |
This study aimed to determine the lethal concentration and the structural and ultra-structural effects caused by the formalin exposure on juveniles of Arapaima gigas. Ninety fish (60.1± 2.5g and 20.2±0.9cm) were exposed to 0, 22, 44, 66, 88 and 110mg L-1 in order to determine the lethal concentration (LC50-96h) that was 36.4mg L-1 of formalin. Sublethal effects were evaluated using histopathological analysis on the gills and assessment of behavioral alterations and clinical signs. The LC50 of formalin for 24, 48 and 72h was 88.3, 64.7 and 56.8mg L-1 respectively. Clinical signs and behavioral changes were found: erratic swimming, lethargy, crowding on the water surface, loss of hydrodynamic equilibrium, spasms and agonistic confrontation, which were observed only at 88 and 110mg L-1. The histological alteration index (HAI) showed that 66, 88 and 100mg L-1 presented significant difference (p<0.05) in relation to unexposed fish, indicating that moderate damage to the gills of fish exposed to formalin had occurred. The mean values of alteration (MVA) for 22, 44, 66, 88 and 110mg L-1 were 1.14, 1.29, 1.51, 1.53 and 1.60 respectively, and differences in this index were only observed with 110 mgL-1 of formalin. It is therefore possible to conclude that sublethal concentrations of formalin (22.0mg L-1) did not compromise the health of juveniles of A. gigas. Finally, concentrations greater than to LC50-96h may be carefully used for short-term exposure, since the MVA for all concentrations tested only indicated localized lesions that did not compromise gills functionality of exposed fish. MenosThis study aimed to determine the lethal concentration and the structural and ultra-structural effects caused by the formalin exposure on juveniles of Arapaima gigas. Ninety fish (60.1± 2.5g and 20.2±0.9cm) were exposed to 0, 22, 44, 66, 88 and 110mg L-1 in order to determine the lethal concentration (LC50-96h) that was 36.4mg L-1 of formalin. Sublethal effects were evaluated using histopathological analysis on the gills and assessment of behavioral alterations and clinical signs. The LC50 of formalin for 24, 48 and 72h was 88.3, 64.7 and 56.8mg L-1 respectively. Clinical signs and behavioral changes were found: erratic swimming, lethargy, crowding on the water surface, loss of hydrodynamic equilibrium, spasms and agonistic confrontation, which were observed only at 88 and 110mg L-1. The histological alteration index (HAI) showed that 66, 88 and 100mg L-1 presented significant difference (p<0.05) in relation to unexposed fish, indicating that moderate damage to the gills of fish exposed to formalin had occurred. The mean values of alteration (MVA) for 22, 44, 66, 88 and 110mg L-1 were 1.14, 1.29, 1.51, 1.53 and 1.60 respectively, and differences in this index were only observed with 110 mgL-1 of formalin. It is therefore possible to conclude that sublethal concentrations of formalin (22.0mg L-1) did not compromise the health of juveniles of A. gigas. Finally, concentrations greater than to LC50-96h may be carefully used for short-term exposure, since the MVA for all concentr... Mostrar Tudo |
Palavras-Chave: |
Formalina; Toxicidade; Toxicoses; Treatment. |
Thesagro: |
Histopatologia; Peixe de Água Doce; Pirarucu; Tratamento. |
Thesaurus Nal: |
Arapaima gigas; Arapaimidae; Formalin; Freshwater fish; Histopathology; Toxicity. |
Categoria do assunto: |
-- S Ciências Biológicas |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/183018/1/CPAF-AP-2018-Histopathological-evalution-of-formalin.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/182143/1/Histopathological-evaluation-of-formalin-toxicity.pdf
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Marc: |
LEADER 02660naa a2200373 a 4500 001 2095738 005 2018-10-31 008 2018 bl uuuu u00u1 u #d 100 1 $aANDRADE-PORTO, S. M. 245 $aHistopathological evaluation of formalin toxicity in Arapaima gigas (Arapaimidae), the giant fish from Amazon.$h[electronic resource] 260 $c2018 520 $aThis study aimed to determine the lethal concentration and the structural and ultra-structural effects caused by the formalin exposure on juveniles of Arapaima gigas. Ninety fish (60.1± 2.5g and 20.2±0.9cm) were exposed to 0, 22, 44, 66, 88 and 110mg L-1 in order to determine the lethal concentration (LC50-96h) that was 36.4mg L-1 of formalin. Sublethal effects were evaluated using histopathological analysis on the gills and assessment of behavioral alterations and clinical signs. The LC50 of formalin for 24, 48 and 72h was 88.3, 64.7 and 56.8mg L-1 respectively. Clinical signs and behavioral changes were found: erratic swimming, lethargy, crowding on the water surface, loss of hydrodynamic equilibrium, spasms and agonistic confrontation, which were observed only at 88 and 110mg L-1. The histological alteration index (HAI) showed that 66, 88 and 100mg L-1 presented significant difference (p<0.05) in relation to unexposed fish, indicating that moderate damage to the gills of fish exposed to formalin had occurred. The mean values of alteration (MVA) for 22, 44, 66, 88 and 110mg L-1 were 1.14, 1.29, 1.51, 1.53 and 1.60 respectively, and differences in this index were only observed with 110 mgL-1 of formalin. It is therefore possible to conclude that sublethal concentrations of formalin (22.0mg L-1) did not compromise the health of juveniles of A. gigas. Finally, concentrations greater than to LC50-96h may be carefully used for short-term exposure, since the MVA for all concentrations tested only indicated localized lesions that did not compromise gills functionality of exposed fish. 650 $aArapaima gigas 650 $aArapaimidae 650 $aFormalin 650 $aFreshwater fish 650 $aHistopathology 650 $aToxicity 650 $aHistopatologia 650 $aPeixe de Água Doce 650 $aPirarucu 650 $aTratamento 653 $aFormalina 653 $aToxicidade 653 $aToxicoses 653 $aTreatment 700 1 $aRAMOS, C. A. 700 1 $aROQUE, R. 700 1 $aAFFONSO, E. G. 700 1 $aBARCELLOS, J. F. M. 700 1 $aQUEIROZ, M. N. 700 1 $aARAÚJO, C. S. O. 700 1 $aTAVARES-DIAS, M. 773 $tPesquisa Veterinária Brasileira$gv. 38, n. 6, p. 1015-1025, Jun. 2018
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Embrapa Amapá (CPAF-AP) |
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Biblioteca(s): |
Embrapa Suínos e Aves. |
Data corrente: |
22/11/2012 |
Data da última atualização: |
19/06/2013 |
Tipo da produção científica: |
Artigo em Anais de Congresso |
Autoria: |
ESTEVES, P. A.; TREVISOL, I. M.; FRANCO, A. C.; CORNELISSEN, L.; SILVA, V. S.; RECH, R. R. |
Afiliação: |
PAULO AUGUSTO ESTEVES, CNPSA; IARA MARIA TREVISOL, CNPSA; ANA CLAUDIA FFRANCO, UFRGS; LISETTE CORNELISSEN, Central Veterinary Institute - Wageningen; VIRGINIA SANTIAGO SILVA, CNPSA; RAQUEL RUBIA RECH, CNPSA. |
Título: |
Molecular detection of avian gyrovirus type 2 (AGV2) in specific pathogen free (SPF) chickens housed on commercial broiler litter. |
Ano de publicação: |
2012 |
Fonte/Imprenta: |
In: WORLD´S POULTRY CONGRESS, 24., 2012, Salvador. Abstract... Salvador: WSPA, 2012. 1 CD-ROM. World's Poultry Science Journal, v. 68, supl. 1, 2012. |
Idioma: |
Inglês |
Notas: |
Projeto/Plano de Ação: 02.11.01.012. |
Palavras-Chave: |
Infectologia. |
Thesagro: |
Frango de Corte; Virologia. |
Thesaurus NAL: |
Gyrovirus. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/70634/1/final6752.pdf
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Marc: |
LEADER 00808nam a2200217 a 4500 001 1940330 005 2013-06-19 008 2012 bl uuuu u00u1 u #d 100 1 $aESTEVES, P. A. 245 $aMolecular detection of avian gyrovirus type 2 (AGV2) in specific pathogen free (SPF) chickens housed on commercial broiler litter.$h[electronic resource] 260 $aIn: WORLD´S POULTRY CONGRESS, 24., 2012, Salvador. Abstract... Salvador: WSPA, 2012. 1 CD-ROM. World's Poultry Science Journal, v. 68, supl. 1$c2012 500 $aProjeto/Plano de Ação: 02.11.01.012. 650 $aGyrovirus 650 $aFrango de Corte 650 $aVirologia 653 $aInfectologia 700 1 $aTREVISOL, I. M. 700 1 $aFRANCO, A. C. 700 1 $aCORNELISSEN, L. 700 1 $aSILVA, V. S. 700 1 $aRECH, R. R.
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