
O objetivo deste trabalho foi avaliar as respostas fisiológicas de tambaqui (Colossoma macropomum, Cuvier 1818) a banhos terapêuticos com mebendazol. Juvenis de tambaqui (n = 108, massa média de 37,80±0,24 g) foram submetidos a banhos terapêuticos de mebendazol a 0, 100, 300 e 600 mg L-1, com três repetições, em exposições de 30, 60 e 120 minutos. Não foram observadas diferenças significativas para íons plasmáticos (sódio, potássio e cálcio) e parâmetros hematológicos - hematócrito, número de eritrócitos e constantes corpusculares -, com exceção da hemoglobina, que apresentou aumento significativo, após 120 minutos na concentração de 300 mg L-1 de mebendazol, de forma similar ao que ocorreu com a glicose. Os indicadores fisiológicos de estresse avaliados revelam que o tambaqui mantém a sua homeostasia em concentrações de até 600 mg L-1 de mebendazol por até 120 minutos, com boa tolerância ao mebendazol.The objective of this work was to evaluate the physiological responses of tambaqui (Colossoma macropomum, Cuvier 1818) to therapeutic baths with mebendazole. Tambaqui juveniles (n = 108, mean weight 37.80±0.24 g) were submitted to therapeutic baths with mebendazole at 0, 100, 300 and 600 mg L-1, with three replicates, during 30, 60 and 120 minutes. No significant differences were observed for plasma ions (sodium, potassium and calcium) concentration and for hematological parameters (hematocrit, eritrocit numbers and corpuscular indices), except hemoglobin, which increase after exposure of 120 minutes in the mebendazole concentration of 300 mg L-1 was significant, similarly to the observed for glucose. Stress physiological indices evaluated showed that tambaqui maintains its homeostasis in concentrations until 600 mg L-1 of mebendazole for 120 minutes, presenting a good tolerance to mebendazole.
hematology, concentração de íons plasmáticos, Agriculture (General), estresse fisiológico, S1-972, piscicultura, plasma ions concentrations, hematologia, Colossoma macropomum, physiological stress, fish culture
hematology, concentração de íons plasmáticos, Agriculture (General), estresse fisiológico, S1-972, piscicultura, plasma ions concentrations, hematologia, Colossoma macropomum, physiological stress, fish culture
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