2016
DOI: 10.1590/1519-6984.15015
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The efficacy of clove oil as an anaesthetic and in euthanasia procedure for small-sized tropical fishes

Abstract: 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 a… Show more

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Cited by 108 publications
(66 citation statements)
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References 29 publications
(60 reference statements)
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“…In the current study, the cortisol levels in the control group presented the same range of variations than those measured in Experiment I. These results further confirm the ability of EOMS to reduce the activity of the HPI axis and modulate the activation of the hormonal cascade associated with the stress response (Iversen et al, 2003;Small, 2003;Wendelaar-Bonga, 1997). Even so, in chronic stress experiments, no evidences of a marked variation of cortisol values were observed in the control group, although a plausible effect between diet supplementation and stocking density was observed.…”
Section: Experiments Ii: Effects Of Eoms On Physiological Parameterssupporting
confidence: 85%
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“…In the current study, the cortisol levels in the control group presented the same range of variations than those measured in Experiment I. These results further confirm the ability of EOMS to reduce the activity of the HPI axis and modulate the activation of the hormonal cascade associated with the stress response (Iversen et al, 2003;Small, 2003;Wendelaar-Bonga, 1997). Even so, in chronic stress experiments, no evidences of a marked variation of cortisol values were observed in the control group, although a plausible effect between diet supplementation and stocking density was observed.…”
Section: Experiments Ii: Effects Of Eoms On Physiological Parameterssupporting
confidence: 85%
“…Cortisol is involved in several physiological processes, such as the regulation of metabolic pathways, behaviour, growth, reproduction and osmoregulation (Mommsen, Vijayan, & Moon, 1999 (Gressler et al, 2014;Iversen, Finstad, McKinley, & Eliassen, 2003;Saccol, Londero et al, 2017;Saccol, Toni et al, 2017). However, the exact mechanism underlying the effect of EOs on cortisol secretion remains unknown.…”
Section: Experiments I: Growth Performance and Physiological Parametersmentioning
confidence: 99%
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“…After blocking each stretch, specimens were collected using hand gathering techniques with a sieve (0.8 × 0.7 m, 2.5 mm mesh) and a hand net (2.0 × 1.0 m, 5 mm mesh) for 4-person hours per stretch ( Figure 3) (to more information about the method see Mendonça et al 2005). Captured fish were euthanized by anesthetic overdose (0.2 ml oil clove/500 ml water, Fernandes et al 2017).…”
Section: Fish Samplingmentioning
confidence: 99%
“…Corresponding stress responses are formed, which include changes in energy metabolism, plasma hormones and electrolyte balance, eventually causing vast economical loss and affecting research reliability (Ross & Ross, 1999;Wendelaar Bonga, 1997). Therefore, to reduce the stress associated with the procedures of harvesting, sampling and spawning, anaesthetics are widely used in aquaculture and research (Coyle, Durborow, & Tidwell, 2004;Fernandes, Bastos, Barreto, Lourenco, & Penha, 2017). Similarly, to alleviate the stress generated by fish during transportation, low concentration of anaesthetics is widely used to reduce the metabolic rate and oxygen demand, as well as maintain the fish in a state of deep sedation while maintaining equilibrium (Benovit et al, 2012;Cook, Suski, Ostrand, Tufts, & Wahl, 2004).…”
Section: Introductionmentioning
confidence: 99%