2013
DOI: 10.1590/s1679-62252013000300021 View full text |Buy / Rent full text
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Abstract: This study evaluated extracts of Condalia buxifolia as anesthetics for the silver catfish Rhamdia quelen. The effectiveness of eugenol and of the methanolic extract (ME) of C. buxifolia during the transport of this species was also assessed. Fish of two different weights (1.50±0.02 g and 165.70±22.50 g) were transferred to aquaria containing water with the C. buxifolia ME or with fractions obtained from the ME, such as the n-hexane, dichloromethane, ethyl acetate, n-butane and aqueous fractions, at concentrati… Show more

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“…Net ion fluxes provided a good correlation with the stress of transport for silver catfish (Becker et al, 2012(Becker et al, , 2013Parodi et al, 2014;Zeppenfeld et al, 2014;Garcia et al, 2015). Sedation with eugenol and the EOs of L. alba and A. triphylla also reduced ammonia excretion and ion loss in silver catfish (Becker et al, 2012(Becker et al, , 2016Parodi et al, 2014;Zeppenfeld et al, 2014), methanolic extract of Condalia buxifolia and the EOs of Cunila galioides and Origanum majorana decreased ion loss in silver catfish (Becker et al, 2013;Cunha et al, 2017).…”
Section: Tab 2 Water Parameters After 8 H Exposure Ofmentioning
“…In addition, this anesthetic is used in artificial reproduction and chirurgic processes, as well as with live fish transportation (Javahery et al, 2012;Inoue et al, 2005) because it mitigates fish stress levels. It also reduces potential negative effects on fish homeostasis, so decreasing mortality rates (Inoue et al, 2005;Becker et al, 2012Becker et al, , 2013.…”
Section: Introductionmentioning
“…We excluded untagged fish from the experiment; (iv) Higher intensity handling with anesthesia: We repeated the procedure of treatment (iii) for 50 fish except that we anesthetized fish with clove oil diluted in water at 0.1 mL/L before CWT tagging. We used clove oil because of its anesthetic qualities, it is easy to find, has safety margin for fish and no harmful effects for humans, and it is not unpleasant to handle (Roubach et al, 2005;Ross & Ross, 2008;Cunha et al, 2010;Becker et al, 2013). Eugenol, the active ingredient of the clove oil, represents 70-90% of its weight (Becker et al, 2013).…”
Section: Methodsmentioning
“…The transportation of fish in a closed system, such as a plastic bag, can affect the oxygen supply and result in a build-up of ammonia and carbon dioxide, which can become a serious problem for fish survival (Gomes et al 2006a, b;Golombieski et al 2003;Carneiro et al 2009;Becker et al 2012Becker et al , 2013. The transport can also disturb metabolic processes and interfere with the glucose, lactate and glycogen tissue levels (Iwama et al 2004;Pankhurst 2011).…”
Section: Introductionmentioning
“…The transport can also disturb metabolic processes and interfere with the glucose, lactate and glycogen tissue levels (Iwama et al 2004;Pankhurst 2011). Sedatives or anesthetics obtained from plants can be added to the transport water to minimize these problems (Becker et al 2012(Becker et al , 2013Parodi et al 2014;Zeppenfeld et al 2014).…”
Section: Introductionmentioning