Ação da benzocaína e do óleo de cravo sobre parâmetros fisiológicos de tilápia, Oreochromis niloticus
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Data
2006-08-24
Autores
Delbon, Marina Carvalho [UNESP]
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Editor
Universidade Estadual Paulista (Unesp)
Resumo
Avaliou-se as concentrações ideais e os tempos de indução e de recuperação do anestésico benzocaína e óleo de cravo, em juvenis de Oreochromis niloticus. Para isso, testou-se cinco concentrações de óleo de cravo e três de benzocaína e, com as análises de freqüência cardíaca, determinou-se que 100 mg/L de benzocaína e 80 mg/L de óleo de cravo foram as concentrações mais eficazes para estes organismos-teste. A partir destas determinações, montou-se um experimento onde foram analisadas alterações fisiológicas (cortisol, glicose, hematócrito, hemoglobina, número total de células sangüíneas, VCM, HCM, CHCM, contagem total de trombócitos e contagem total e diferencial de leucócitos), a 23ºC e a 28ºC, e o tempo que os peixes levaram para se alimentar após o tratamento anestésico. Com estas análises, concluiu-se que os anestésicos testados minimizaram o efeito do estresse causado por manipulações e procedimentos invasivos, e que os peixes submetidos ao tratamento com óleo de cravo, apesar de não ser significativo, apresentaram maiores taxas de alimentação, em relação aos demais tratamentos.
The ideal concentrations, induction and recovery time after treatment with benzocaine anaesthetic and clove oil, in juvenile of Oreochromis niloticus has been evaluated. Five concentrations of clove oil and three of benzocaine were tested. Through the analyses of cardiac frequency, it was show that 100 mg/L of benzocaine and 80 mg/L of clove oil showed the most efficient concentrations for this test organism. Further, an experiment where physiological alterations (cortisol, glucose, hematocrit, hemoglobin, total number of cells, MCV, MCH, MCHC, total counting of trombocytes and total and differential countings of leukocytes), at 23ºC and 28ºC was conducted, as well as the time that the fish fed after anaesthetic treatment. It was concluded that the tested anaesthetics minimized the stress effects caused by manipulations and invasive procedures, and that the fish submitted to the treatment with clove oil, although not significant, presented higher feeding rates, in relation to the other treatments.
The ideal concentrations, induction and recovery time after treatment with benzocaine anaesthetic and clove oil, in juvenile of Oreochromis niloticus has been evaluated. Five concentrations of clove oil and three of benzocaine were tested. Through the analyses of cardiac frequency, it was show that 100 mg/L of benzocaine and 80 mg/L of clove oil showed the most efficient concentrations for this test organism. Further, an experiment where physiological alterations (cortisol, glucose, hematocrit, hemoglobin, total number of cells, MCV, MCH, MCHC, total counting of trombocytes and total and differential countings of leukocytes), at 23ºC and 28ºC was conducted, as well as the time that the fish fed after anaesthetic treatment. It was concluded that the tested anaesthetics minimized the stress effects caused by manipulations and invasive procedures, and that the fish submitted to the treatment with clove oil, although not significant, presented higher feeding rates, in relation to the other treatments.
Descrição
Palavras-chave
Tilapia (Peixe), Óleo de cravo, Benzocaína, Benzocaine, Clove oil, Stress, Fish, heart rate
Como citar
DELBON, Marina Carvalho. Ação da benzocaína e do óleo de cravo sobre parâmetros fisiológicos de tilápia, Oreochromis niloticus. 2006. iii,, 83 f. Dissertação (mestrado) - Universidade Estadual Paulista, Centro de Aqüicultura, 2006.