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Title: | Physiological responses of Rhamdia quelen (Siluriformes: Heptapteridae) to anesthesia with essential oils from two different chemotypes of Lippia alba |
Authors: | SOUZA, Carine de Freitas BALDISSERA, Matheus Dellaméa SALBEGO, Joseânia LOPES, Jane Mello VAUCHER, Rodrigo de Almeida MOURÃO, Rosa Helena Veras HEINZMANN, Berta Maria SILVA, Lenise Vargas Flôres da BALDISSEROTTO, Bernardo |
Keywords: | Blood gas Cortisol Glucose Plasma ions Silver Catfish Gases sanguíneos Glicose Íons plasmáticos Jundiá |
Issue Date: | 2017 |
Publisher: | UEM |
Citation: | SOUZA, C. F. et al. Physiological responses of Rhamdia quelen (Siluriformes: Heptapteridae) to anesthesia with essential oils from two different chemotypes of Lippia alba. Neotropical Ichthyology, Maringá, v. 15, n. 1, p. e160083[1] -e160083[10], 2017. DOI: 10.1590/1982-0224-20160083 |
Abstract: | The aim of this study was to evaluate if Lippia alba has different chemotypes according to the chemical composition of the essential oil (EO) considering collection site, and if the EO may have different effects on blood and plasma parameters in silver catfish, Rhamdia quelen, during and immediately after anesthesia. The citral (EO-C) and linalool (EO-L) chemotypes were identified, and both presented similar anesthetic effects for silver catfish. Fish were exposed to two concentrations of each EO, which induced slow and fast anesthesia (100 and 300 µL L-1, respectively). Blood ions did not change at any time of anesthesia induction and recovery and, therefore, the electrolyte balance was not altered. Blood gases oscillated through all exposure and recovery times, but there was an increase in pO2 after 10 min recovery in fish anesthetized with EO-C. Glucose increased in fish exposed to both EOs when compared with the control group. Overall, exposure to both EOs (except 100 µL L-1 EO-L at most times) reduced plasma cortisol levels compared to the control and/or ethanol groups. However, as plasma creatinine levels in fish anesthetized with EO-C were higher than control fish, the use of EO-L is preferable. _____________ RESUMO: O objetivo deste estudo foi avaliar se Lippia alba apresenta diferentes quimiotipos de acordo com a composição química do óleo essencial (OE), considerando local de coleta e se o OE causa diferentes efeitos nos parâmetros sanguíneos e plasmáticos em jundiá, Rhamdia quelen, durante e imediatamente após a anestesia. Os quimiotipos citral (OE-C) e linalol (OE-L) foram identificados e ambos apresentaram efeito anestésico semelhante para jundiá. Os peixes foram expostos a duas concentrações de cada OE, que induziram anestesia lenta e rápida (100 e 300 mL L-1, respectivamente). Íons sanguíneos não se alteraram em nenhum tempo e consequentemente, o equilíbrio eletrolítico não foi alterado. Os gases sanguíneos oscilaram durante todo tempo de exposição e recuperação, mas houve aumento na pO2 após 10 min de recuperação em peixes anestesiados com OE-C. Níveis sanguíneos de glicose aumentaram nos peixes expostos a ambos OEs quando comparados com o grupo controle. De um modo geral, a exposição a ambos OEs (exceto 100 µL L-1 OE-L na maioria dos tempos) reduziu o cortisol plasmático comparado aos grupos controle e etanol. No entanto, como os níveis de creatinina plasmática em peixes anestesiados com OE-C foram maiores que nos peixes controle, é preferível o uso do OE-L. |
Description: | Creative Commons License This is an open-access article distributed under the terms of the Creative Commons Attribution License |
URI: | http://hdl.handle.net/123456789/740 |
ISSN: | 1982-0224 |
Appears in Collections: | Artigos - Zootecnia |
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File | Description | Size | Format | |
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Physiological responses of Rhamdia quelen to anesthesia with essential oils from two different chemotypes of Lippia alba.pdf | Artigo | 2,04 MB | Adobe PDF | View/Open |
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