Uso de três anestésicos pelo método de aspersão branquial em adultos de peixes de produção
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Data
2009-12-04
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Universidade Federal de Viçosa
Resumo
Foi avaliada a eficácia do óleo de cravo, mentol e benzocaína como anestésico em adultos de trairão (Hoplias lacerdae), piavuçu (Leporinus macrocephalus) e curimbatá (Prochilodus lineatus). Os peixes (n=3) foram individualmente expostos a concentrações de 100, 125, 150, 175 mg L-1, com exceção do trairão que utilizou-se as concentrações 150, 175, 200 e 250 mg L-1, devido a testes feitos com as concentrações anteriores, e as mesmas não responderam positivamente. O método utilizado para expor os animais ao anestésico foi aspersão branquial. Os parâmetros de observação estabelecidos foram: efeito calmante e respostas apenas a estímulos táteis mais intensos. Após a indução anestésica foi realizada a biometria. A recuperação foi conduzida em um aquário, contendo 300 litros de água corrente livre de anestésico. O tempo de indução e recuperação foi registrado para cada peixe. Avaliou-se o tempo de retorno à alimentação e a mortalidade após o tratamento anestésico. Foi constatada a eficácia dos três anestésicos em todas as concentrações testadas para adultos de trairão e curimbatá. Também foi verificada a eficiência do óleo de cravo e benzocaína em piavuçu. Nenhuma concentração de mentol foi capaz de induzir a anestesia em adultos de piavuçu. As concentrações utilizadas não exerceram influência estatística nos tempos de indução e recuperação anestésica em piavuçu, curimbatá e trairão. Os peixes anestesiados com óleo de cravo obtiveram tempo de retorno à anestesia maior entre os anestésicos em estudo com piavuçu e curimbatá.
Was evaluated the efficiency of clove oil, menthol and benzocaine as an anesthetic for trairão (Hoplias lacerdae), piavuçu (Leporinus macrocephalus) and curimbatá (Prochilodus lineatus). The fish (n=3) were individually exposed to concentrations of 100, 125, 150, 175 mg L-1, except trairão, to this fish were used the concentrations 150, 175, 200 and 250 mg L-1, because the tests with the previous concentrations, and they did not respond positively. The method used to expose the animals to the anesthetic was sprays in the gills. The parameters to evaluated the anesthesia effects were: sedative effect and sensitivity responses to touch. After anesthesia was performed biometric. The recovery was conducted in aquarium, containing 300 liters of anesthetic free running water. The time of induction and recovery was recorded for each fish. It was evaluated the time return to fed and the mortality after anesthetic induction. It was confirmed the efficient effect of the three anesthetics at all concentrations tested for trairão and curimbatá. We also observed the efficiency of clove oil and benzocaine in piavuçu. No concentration of menthol was able to induce anesthesia in piavuçu, and the concentrations used did not affect the statistical time of recovery from paivuçu, curimbatá and trairão. The anesthesia time return of fish anesthetized with clove oil was greater among anesthetics in the study with piavuçu and curimbatá.
Was evaluated the efficiency of clove oil, menthol and benzocaine as an anesthetic for trairão (Hoplias lacerdae), piavuçu (Leporinus macrocephalus) and curimbatá (Prochilodus lineatus). The fish (n=3) were individually exposed to concentrations of 100, 125, 150, 175 mg L-1, except trairão, to this fish were used the concentrations 150, 175, 200 and 250 mg L-1, because the tests with the previous concentrations, and they did not respond positively. The method used to expose the animals to the anesthetic was sprays in the gills. The parameters to evaluated the anesthesia effects were: sedative effect and sensitivity responses to touch. After anesthesia was performed biometric. The recovery was conducted in aquarium, containing 300 liters of anesthetic free running water. The time of induction and recovery was recorded for each fish. It was evaluated the time return to fed and the mortality after anesthetic induction. It was confirmed the efficient effect of the three anesthetics at all concentrations tested for trairão and curimbatá. We also observed the efficiency of clove oil and benzocaine in piavuçu. No concentration of menthol was able to induce anesthesia in piavuçu, and the concentrations used did not affect the statistical time of recovery from paivuçu, curimbatá and trairão. The anesthesia time return of fish anesthetized with clove oil was greater among anesthetics in the study with piavuçu and curimbatá.
Descrição
Palavras-chave
Peixe, Anestésico, Óleo de cravo, Benzocaína, Mentol, Fish, Anesthetics, Clove oil, Benzocaine, Menthol
Citação
VALENTE, Christiane de Oliveira. Use of three anesthetics by the gills sprays method in adult fish production. 2009. 79 f. Dissertação (Mestrado em Biologia e Manejo animal) - Universidade Federal de Viçosa, Viçosa, 2009.
