Hematological, biochemical and physiological evaluation of tilapia juveniles treated with organophosphate trichlorfon.

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dc.contributorJULIANA AUGUSTA GIL, UNIVERSIDADE ESTADUAL DE CAMPINAS; ISRAEL LUZ CARDOSO, UNIVERSIDADE FEDERAL DE SÃO CARLOS; GIOVANNI HENRIQUE FERRI, UNIVERSIDADE ESTADUAL DE CAMPINAS; MICHELLY PEREIRA SOARES, UNIVERSIDADE FEDERAL DE SÃO CARLOS; CINTIA MANZATTO BALDIN, CENTRO UNIVERSITÁRIO DE JAGUARIÚNA; JULIO FERRAZ DE QUEIROZ, CNPMA; MARCIA MAYUMI ISHIKAWA, CNPMA.
dc.creatorGIL, J. A.
dc.creatorCARDOSO, I. L.
dc.creatorFERRI, G. H.
dc.creatorSOARES, M. P.
dc.creatorBALDIN, C. M.
dc.creatorQUEIROZ, J. F. de
dc.creatorISHIKAWA, M. M.
dc.date2026-01-07T17:49:02Z
dc.date2026-01-07T17:49:02Z
dc.date2026-01-07
dc.date2025
dc.date.accessioned2026-07-07T05:10:52Z
dc.descriptionAbstract: Trichlorfon (TCF) is an organophosphate parasiticide commonly used in aquaculture to treat ectoparasites. However, studies across various fish species have reported adverse effects even at sublethal doses. This study assessed the hematological and biochemical responses of Nile tilapia juveniles (Oreochromis niloticus) following a one-hour exposure to a 0.5 mg L⁻¹ bath of a commercial TCF-based product. It also evaluated the fish's physiological recovery 28 hours after exposure. Results showed elevated plasma cortisol levels and a downregulation of glutathione-S-transferase (GST) activity in liver tissue among TCF-exposed fish compared to controls. Alterations in the leukogram of treated fish indicate an increased vulnerability to disease. These findings suggest that a 28-hour recovery period is insufficient to restore the physiological health of Nile tilapia juveniles after TCF exposure. The study highlights the importance of adopting best management practices (BMPs) when applying TCF treatments in aquaculture and underscores the need for further research on the short- and long-term physiological impacts of chemical treatments on fish.
dc.identifierStudies in Environmental and Animal Sciences, v. 6, n. 2, p.e16255, 2025.
dc.identifier2764-0760
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1183417
dc.identifierhttps://doi.org/10.54020/seasv6n2-001
dc.identifier.urihttp://hdl.handle.net/123456789/483147
dc.languageeng
dc.rightsopenAccess
dc.subjectCortisol plasmático
dc.subjectEstresse oxidativo
dc.subjectEctoparasitas
dc.subjectResposta fisiológica
dc.subjectPlasma cortisol
dc.subjectTilápia
dc.subjectOreochromis Niloticus
dc.subjectParasitose
dc.subjectParasiticida
dc.subjectEfeito Colateral
dc.subjectHematologia
dc.subjectGlicose
dc.subjectTilapia (common name)
dc.subjectParasitoses
dc.subjectTrichlorfon
dc.subjectAdverse effects
dc.subjectBlood glucose
dc.subjectEctoparasites
dc.subjectOxidative stress
dc.subjectPhysiological response
dc.titleHematological, biochemical and physiological evaluation of tilapia juveniles treated with organophosphate trichlorfon.
dc.typeArtigo de periódico

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