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Respostas metabólicas do matrinxã submetido a banhos anestésicos de eugenol = Metabolic responses of matrinxã to eugenol in anesthetic baths

Authors: Gilberto Moraes; Luis Antônio Kioshi Aoki Inoue; Lívia Gruli Barbosa;

Respostas metabólicas do matrinxã submetido a banhos anestésicos de eugenol = Metabolic responses of matrinxã to eugenol in anesthetic baths

Abstract

O matrinxã (Brycon amazonicus) é uma espécie de interesse comercial. Porém, este peixe movimenta-se em excesso durante práticas de manejo, podendo sofrer ferimentos e perdas de escamas que, muitas vezes, resultam em taxas elevadas de mortalidade. O eugenol, principal componente do óleo de cravo, tem sido bastante utilizado como umanestésico alternativo para peixes por ser um produto natural e de baixo custo. Entretanto, estudos que tratam de respostas metabólicas, em peixes tropicais expostos a diferentes anestésicos, são ainda necessários. Dentro deste intuito, o presente trabalho avaliourespostas metabólicas do Brycon amazonicus ao eugenol, em simulações de banhos anestésicos. A demanda metabólica do matrinxã foi suprida principalmente pelo catabolismo de aminoácidos. Respostas típicas ao estresse foram detectadas por causa do manuseio imposto aos peixes para a realização dos banhos anestésicos. O eugenol não reduziutotalmente essas reações ao estresse. Por outro lado, esse anestésico não provocou estresse adicional em virtude de sua presença em exposições curtas de até 60 mg L-1 por 10 min. O eugenol proporciona segurança aos trabalhadores durante práticas de manejo, sem maioresprejuízos ao matrinxã.Matrinxã (Brycon amazonicus) is a commercial fish that presents excessive movements during handling. This characteristic predisposes the animals to injuries and losses of scales that may result in high mortality rates. Eugenol, the main component of clove oil, has been reported as an alternative fish anesthetic because it is a natural product and cheap. However, studies remain necessary about the metabolic responses of tropical fishes to anesthetics. The present work evaluated metabolic responses of Brycon amazonicus to eugenol in simulated anesthetic baths. The fish metabolic demand was supplied mainly by amino acids catabolism. Typical metabolic stress responses to handling were detected but eugenol could not totally reduce them. On the other hand, the anesthetic dissolved in the water did notprovoke any extra charge of stress during short-term exposures up to 60 mg L-1 for 10 min. Eugenol provides safety to the workers in handling of matrinxã.

Keywords

anesthetic, QH301-705.5, Brycon amazonicus, metabolismo, Biology (General), eugenol, metabolism, Microbiology, anestésico, QR1-502

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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