Anesthesia and sedation of map treefrog tadpoles with essential oils/Anestesia e sedacao de girinos da perereca geografica Hypsiboas geographicus com oleos essenciais

The goal of this study was to investigate the sedative and anesthetic properties of essential oils (EOs) in map treefrog tadpoles (Hypsiboas geographicus) and to determine the sedation and deep anesthesia induction times as well as the recovery time. The tadpoles were exposed to one of the EOs from...

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Veröffentlicht in:Ciência rural 2017-11, Vol.47 (11)
Hauptverfasser: Salbego, Joseania, Maia, Janna Laely dos Santos, Toni, Candida, Rodrigues, Amanda Sousa Silva, Sousa, Elen Monique Oliveira, da Silva, Lenise Vargas Flores, Mourao, Rosa Helena Veras, Barata, Lauro Euclides Soares, Heinzmann, Berta Maria, Baldisserotto, Bernardo
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Sprache:eng
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Zusammenfassung:The goal of this study was to investigate the sedative and anesthetic properties of essential oils (EOs) in map treefrog tadpoles (Hypsiboas geographicus) and to determine the sedation and deep anesthesia induction times as well as the recovery time. The tadpoles were exposed to one of the EOs from three plant species: Aniba rosaeodora (EOAR--25, 50, 100 or 200[micro]L [L.sup.-1]), Lippia origanoides (EOLO--13, 25, 50, 100 or 200[micro]L [L.sup.-1]), and Lippia alba (either chemotype citral [EOL-C--25, 50, 100 or 200[micro]L [L.sup.-1]] or linalool [EOL-L--50, 75, 100 or 200pL [L.sup.-1]]) (n = 8 per replicate). The tadpoles exposed to 25 and 50[micro]L [L.sup.-1] EOL-C and EOL-L, respectively, were not anesthetized within 30min (the maximum time of observation), and those exposed to 200[micro]L [L.sup.-1] EOLO did not recover within 30min. Sedation, deep anesthesia and recovery times showed a concentration-dependent relationship for all EOs tested, with the exception of the recovery with EOLO. The results allowed concluding that all investigated EOs can be used to anesthetize tadpoles of H. geographicus, but the use of EOLO must not exceed 100[micro]L [L.sup.-1]. Key words: amphibians, animal welfare, natural anesthetics. O objetivo deste estudo foi investigar as propriedades sedativas e anestesicas de oleos essenciais (OEs) em girinos da perereca Hypsiboas geographicus e determinar os tempos de inducao a sedacao e anestesia profunda, bem como o de recuperacao. Os girinos foram expostos a um dos OEs de tres especies de plantas: Aniba rosaeodora (OEAR--25, 50, 100 ou 200[micro]L [L.sup.-1]), Lippia origanoides (OELO--13, 25, 50, 100 ou 200 [micro]L [L.sup.-1]) ou Lippia alba quimiotipos citral (OEL-C--25, 50, 100 ou 200[micro]L [L.sup.-1]) ou linalol (OEL-L--50, 75, 100 ou 200[micro]L [L.sup.-1]) (n = 8 cada repeticao). Girinos expostos a 25 e 50[micro]L [L.sup.-1] OEL-C e OEL-L, respectivamente, nao foram anestesiados dentro de 30min (tempo maximo de observacao) e aqueles expostos a 200[micro]L [L.sup.-1] OELO nao recuperaram dentro de 30min. Os tempos de sedacao, anestesia profunda e recuperacao apesentaram uma relacao concentracao-resposta para todos os OEs testadas, exceto a recuperacao com OELO. Os resultados permitem concluir que todos os OEs investigados podem ser usados para anestesiar os girinos de H. geographicus, mas o uso de OELO nao deve ser superior a 100[micro]L [L.sup.-1]. Palavras-chave: anfibios, bem estar animal, anestesicos naturais.
ISSN:0103-8478
DOI:10.1590/0103-8478cr20160909