Óleo de cravo como anestésico em adultos de tilápia-do-nilo

Simões, Larissa Novaes; Paiva, Genilson de; Gomes, Levy Carvalho

doi:10.1590/s0100-204x2010001200019

Cited by 11 publications

(7 citation statements)

References 21 publications

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“…These results are similar to that found in others studies with large bodied and fisheries-exploited species in temperate (Anderson et al, 1997;Hoskonen and Pirhonen, 2004) and tropical regions (Simões et al, 2010;Bertozi Júnior et al, 2014;Sanchez et al, 2014a, b). Based on studies that have been assessed the clove oil efficiency, the appropriated anaesthetic dose is between 0.05 mL (50 mg L -1 ) and 0.10 mL (100 mg L -1 ) (Javahery et al, 2012).…”

Section: Discussionsupporting

confidence: 93%

The efficacy of clove oil as an anaesthetic and in euthanasia procedure for small-sized tropical fishes

et al. 2016

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Clove oil is used as a fish anesthetic because it is a natural and inexpensive product with low toxicity risks. The goal of the present study was to determine the appropriate concentration of clove oil for small-sized tropical fish to be used in mark-recapture studies or when individuals are to be sacrificed. We applied three different clove oil concentrations (D1=0.05 mL, D2=0.10 mL and D3=0.20 mL per 500 mL of water) on three small-sized fish species. We found a negative relationship between induction time and treatment for two species (Hyphessobrycon sp.1 and Hemigrammus sp.), while concentration was unrelated to recovery time. Fish body length was positively related to induction time in the D2 treatment for Hemigrammus sp., and negatively for Hyphessobrycon sp.1 in the D1 treatment, but was unrelated to recovery time for three species and treatments. Mortality rates varied across treatments, but higher rates were observed with higher clove oil concentrations. We conclude that 0.05 mL of clove oil per 500 mL of water is the most efficient dose for studies where fish will be released back to their natural habitats, while 0.20 mL of clove oil is recommended for studies that require fish euthanization for further laboratory analyses.Keywords: Eugenol, anesthesia, euthanasia, field experiment, fish manipulation.A eficiência do óleo de cravo como anestésico e em procedimentos de eutanaisa em peixes de pequeno porte Resumo O óleo de cravo é recomendado como anestésico para peixes por ser produto de origem natural, baixo custo e apresentar poucos riscos de intoxicação. O objetivo deste trabalho foi determinar concentrações adequadas de óleo de cravo para anestesiar ou eutanasiar peixes de pequeno porte em ambiente natural. Foram testadas três concentrações do anestésico (D1=0,05 mL, D2=0,10 mL e D3=0,20 mL) em três espécies de peixes de pequeno. Houve uma relação negativa entre o tempo para a sedação dos indivíduos e a concentração para duas espécies (Hyphessobrycon sp.1 e Hemigrammus sp.), porém não foi encontrada relação entre o tempo para recuperação e as concentrações. Os exemplares maiores de Hemigrammus sp. levaram mais tempo para serem sedados no tratamento D2, já o contrário foi observado para Hyphessobrycon sp.1 no tratamento D1, enquanto que não houve efeito do comprimento no tempo de recuperação das três espécies. A mortalidade dos indivíduos variou entre as três concentrações do anestésico e as maiores taxas de mortalidade ocorreram nas maiores concentrações. Desse modo, a concentração de 0,05 mL é eficiente para estudos que envolvem manuseio e a soltura dos peixes, enquanto que a concentração de 0,20 mL é recomendada em estudos onde os peixes precisam ser sacrificados.Palavras-chave: Eugenol, anestesia, eutanásia, experimento de campo, manipulação de peixes.

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Section: Discussionsupporting

confidence: 93%

The efficacy of clove oil as an anaesthetic and in euthanasia procedure for small-sized tropical fishes

et al. 2016

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“…At the end of the experimental period, all animals were euthanized in a solution of water and clove oil (Simões et al 2010) in concentrations of 100 mg/L (approved by the Animal ethics Committee -Protocol nº 06/2015, of the Federal University of Paraná) according to CONCEA (2018). All fish of each experimental unit were weighed (analytical balance) and measured individually (digital caliper) to determine the production parameters: final weight, total length, standard length, biomass, survival and body condition factor (Body weight/ body length 3 x 100).…”

Section: Assay 1: Effect Of Propolis Extract On Nile Tilapia Post-larmentioning

confidence: 99%

Alcoholic extract of propolis in Nile tilapia post-larvae and fingerlings’ diets: effects on production performance, body composition and intestinal histology

Santos

Zadinelo

Silva

et al. 2019

An. Acad. Bras. Ciênc.

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The aim of this study was to evaluate the production performance of Nile tilapia post-larvae and fingerlings fed with increasing levels of alcoholic extract of propolis into diets. In Experiment 1, 1800 post-larvae were distributed in 30 tanks, in a completely randomized design with five treatments composed by the inclusion of 0, 1, 2, 3 and 4 g of dry propolis/kg of feed, and six replicates. In experiment 2, 1600 fingerlings were distributed in the same system and designed as experiment 1. No significant effect was observed between treatments, for final weight, total and standard length, survival, and intestinal villus height. However, the propolis extract inclusion of 1 g/kg in Nile tilapia post-larvae and fingerlings' feed resulted in a better body condition factor and higher body protein deposition (p<0.05). The condition factor is an estimate for the future growth of the animals, possibly the fish treated with propolis extract will present better growth, survival and greater reproductive potential rates. The results of the present study demonstrate that alcoholic extract of propolis improves the nutritional condition of Nile tilapia post-larvae and fingerlings, potentially leading to increased productivity in subsequent stages, as well as leading to improvement in fingerlings muscle deposition.

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“…Catecholamines and plasma cortisol at high levels, a result of stress, caused an increase at the cardiorespiratory movements in fish, interference in gas exchanges, and increased energy expenditure in nitrogen excretion (INOUE & MORAES, 2007;SIMÕES et al, 2010;SIMÕES et al, 2012). To prevent the deleterious effects of stress on fish management, the use of anesthetics such as eugenol is indicated.…”

Section: Results and Discusionmentioning

confidence: 99%

“…The clove oil, where the eugenol is contained, is a dark brown liquid with a peculiar odor and has important biological activities, among them anesthesia and stress reduction in fishes. (KELECOM et al, 2002;INOUE & MORAES, 2007;SIMÕES et al, 2010;SIMÕES et al, 2012;SOUZA et al, 2015). Fish anesthesia, is also used to provide greater safety to workers and technicians when handling fish (BARBOSA et al, 2007;INOUE et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of eugenol toxicity in bioassays with test-organisms

et al. 2017

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Fish in both natural and farming conditions are exposed to stress of capture, handling, transport or treatment that provoke low zootechnical performance. Anesthetics like eugenol obtained from clove oil have been used strategically not only in freshwater but also in marine and estuarine fish in order to reduce the stress. Apart from the eugenol indication as anesthetic and its low toxicity for animals, its environment action is not clear. Bioassays or ecotoxicity tests with indicator organisms are used to evaluate the mode of action of the pollutants in the environment. The aim of this study was to test the acute toxicity of eugenol using the microcrustacean Daphnia magna and the bacterium Aliivibrio fischeri, and also its chronic toxicity for the algae Desmodesmus subspicatus. Eugenol in the concentrations of 50, 75 and 100mg L-1 were toxic to tested indicator organisms.

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Óleo de cravo como anestésico em adultos de tilápia-do-nilo

Cited by 11 publications

References 21 publications

The efficacy of clove oil as an anaesthetic and in euthanasia procedure for small-sized tropical fishes

The efficacy of clove oil as an anaesthetic and in euthanasia procedure for small-sized tropical fishes

Alcoholic extract of propolis in Nile tilapia post-larvae and fingerlings’ diets: effects on production performance, body composition and intestinal histology

Evaluation of eugenol toxicity in bioassays with test-organisms

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