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Registro Completo |
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Biblioteca(s): |
Embrapa Pesca e Aquicultura. |
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Data corrente: |
31/10/2025 |
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Data da última atualização: |
31/10/2025 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
OLIVEIRA-LIMA, J. de; MACIEL-HONDA, P. O.; SILVA, J. B. de A.; LIMA, L. B. D. de; MORON, S. E. |
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Afiliação: |
JEFFESSON DE OLIVEIRA-LIMA, UNIVERSIDADE FEDERAL DO NORTE DO TOCANTINS; PATRICIA OLIVEIRA MACIEL, CNPASA; JAYNE BARROS DE AGUIAR SILVA, UNIVERSIDADE FEDERAL DO NORTE DO TOCANTINS; LIANA BEZERRA DIAS DE LIMA, UNIVERSIDADE FEDERAL DO NORTE DO TOCANTINS; SANDRO ESTEVAN MORON, UNIVERSIDADE FEDERAL DO NORTE DO TOCANTINS. |
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Título: |
Anthelmintic efficacy and sublethal effects of trichlorfon in pirarucu (Arapaima gigas) naturally infected with Dawestrema cycloancistrium. |
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Ano de publicação: |
2025 |
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Fonte/Imprenta: |
Veterinary Parasitology, v. 340, 110630, 2025. |
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DOI: |
https://doi.org/10.1016/j.vetpar.2025.110630 |
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Idioma: |
Inglês |
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Conteúdo: |
Trichlorfon is an organophosphate commonly used to control fish ectoparasites due to its cholinesterase-inhibiting action. Due to recurring issues with monogeneans in pirarucu, this active ingredient has been frequently used in this aquaculture system. The present study aimed to simultaneously evaluate the antiparasitic efficacy and physiological effects of trichlorfon in A. gigas juvenile naturally infected with monogenean Dawestrema cycloancistrium. In the in vitro assay, parasitized gill arches were exposed to trichlorfon (0.1 mg/L - 10 g/L) under controlled conditions, with parasite motility analyzed every 30 min. A 100 % mortality rate was observed after 30 min at 10 g/L and after 3 h at 10 mg/L; concentrations ≤ 1 mg/L caused only a reduction in parasite motility. In the in vivo trial, 96 juveniles were separated into four groups: control, 10 g/L for 30 min, 10 mg/L for 3 h and 10 mg/L for 96 h. The 10 mg/L for 96 h treatment showed the highest efficacy (96.9 %), significantly surpassing the others (49.7 % and 42.3 %; p < 0.05). However, this prolonged exposure induced hypochromic anemia, leukopenia, reduction in ALT and AST levels, and hyperglycemia. It is concluded that trichlorfon short-bath protocols, such as 10 g/L for 30 min or 10 mg/L for 3 h did not cause significant physiological alterations but resulted in only partial efficacy (∼50 %). Prolonged exposures at 10 mg/L for 96 h should not be recommended for A. gigas due to their hematotoxic and hepatotoxic effects. MenosTrichlorfon is an organophosphate commonly used to control fish ectoparasites due to its cholinesterase-inhibiting action. Due to recurring issues with monogeneans in pirarucu, this active ingredient has been frequently used in this aquaculture system. The present study aimed to simultaneously evaluate the antiparasitic efficacy and physiological effects of trichlorfon in A. gigas juvenile naturally infected with monogenean Dawestrema cycloancistrium. In the in vitro assay, parasitized gill arches were exposed to trichlorfon (0.1 mg/L - 10 g/L) under controlled conditions, with parasite motility analyzed every 30 min. A 100 % mortality rate was observed after 30 min at 10 g/L and after 3 h at 10 mg/L; concentrations ≤ 1 mg/L caused only a reduction in parasite motility. In the in vivo trial, 96 juveniles were separated into four groups: control, 10 g/L for 30 min, 10 mg/L for 3 h and 10 mg/L for 96 h. The 10 mg/L for 96 h treatment showed the highest efficacy (96.9 %), significantly surpassing the others (49.7 % and 42.3 %; p < 0.05). However, this prolonged exposure induced hypochromic anemia, leukopenia, reduction in ALT and AST levels, and hyperglycemia. It is concluded that trichlorfon short-bath protocols, such as 10 g/L for 30 min or 10 mg/L for 3 h did not cause significant physiological alterations but resulted in only partial efficacy (∼50 %). Prolonged exposures at 10 mg/L for 96 h should not be recommended for A. gigas due to their hematotoxic and hepatotoxic effe... Mostrar Tudo |
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Palavras-Chave: |
Parasita. |
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Thesagro: |
Peixe; Pirarucu. |
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Thesaurus Nal: |
Arapaima gigas. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02311naa a2200229 a 4500
001 2180886
005 2025-10-31
008 2025 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.vetpar.2025.110630$2DOI
100 1 $aOLIVEIRA-LIMA, J. de
245 $aAnthelmintic efficacy and sublethal effects of trichlorfon in pirarucu (Arapaima gigas) naturally infected with Dawestrema cycloancistrium.$h[electronic resource]
260 $c2025
520 $aTrichlorfon is an organophosphate commonly used to control fish ectoparasites due to its cholinesterase-inhibiting action. Due to recurring issues with monogeneans in pirarucu, this active ingredient has been frequently used in this aquaculture system. The present study aimed to simultaneously evaluate the antiparasitic efficacy and physiological effects of trichlorfon in A. gigas juvenile naturally infected with monogenean Dawestrema cycloancistrium. In the in vitro assay, parasitized gill arches were exposed to trichlorfon (0.1 mg/L - 10 g/L) under controlled conditions, with parasite motility analyzed every 30 min. A 100 % mortality rate was observed after 30 min at 10 g/L and after 3 h at 10 mg/L; concentrations ≤ 1 mg/L caused only a reduction in parasite motility. In the in vivo trial, 96 juveniles were separated into four groups: control, 10 g/L for 30 min, 10 mg/L for 3 h and 10 mg/L for 96 h. The 10 mg/L for 96 h treatment showed the highest efficacy (96.9 %), significantly surpassing the others (49.7 % and 42.3 %; p < 0.05). However, this prolonged exposure induced hypochromic anemia, leukopenia, reduction in ALT and AST levels, and hyperglycemia. It is concluded that trichlorfon short-bath protocols, such as 10 g/L for 30 min or 10 mg/L for 3 h did not cause significant physiological alterations but resulted in only partial efficacy (∼50 %). Prolonged exposures at 10 mg/L for 96 h should not be recommended for A. gigas due to their hematotoxic and hepatotoxic effects.
650 $aArapaima gigas
650 $aPeixe
650 $aPirarucu
653 $aParasita
700 1 $aMACIEL-HONDA, P. O.
700 1 $aSILVA, J. B. de A.
700 1 $aLIMA, L. B. D. de
700 1 $aMORON, S. E.
773 $tVeterinary Parasitology$gv. 340, 110630, 2025.
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Embrapa Pesca e Aquicultura (CNPASA) |
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| 1. |  | SIDDIQUE, I.; VIEIRA, I. C. G.; SCHIMIDT, S.; LAMB, D.; CARVALHO, C. J. R. de; FIGUEIREDO, R. de O.; BLOMBERG, S.; DAVIDSON, E. A. Nitrogen and phosphorus additions negatively affect tree species diversity tropical forest regrowth trajectories. Ecology, v. 91, n. 7, p. 2121-2131, 2010.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 2. | | SIDDIQUE, I.; VIEIRA, I. C. G.; SCHMIDT, S.; LAMB, D.; CARVALHO, C. J. R. de; FIGUEIREDO, R. de O.; DAVIDSON, E. A. Early-successional dynamics of tree species composition in relation to nitrogen and phosphorus supply in degraded pasture in Eastern Amazonia. In: ESAR/SER JOINT MEETING, 2007, San Jose, California. Abstract. San Jose: San Jose State University, 2007. Abstract ID: 4655. Password: 290749.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| Registros recuperados : 2 | |
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