Resposta anestesica do tambaqui exposto ao extrato aquoso de Cunambí, Clibadium Surinamense Linn.

Abstract

The use of anesthetics in aquaculture is increasingly used to minimize the damage caused by handling during the cultivation process. This study investigated the use of cunambi, Clibadium surinamese L as an anesthetic for tambaqui. To identify the time of induction of anesthesia, the fish were individually exposed to different concentrations of the aqueous plant extract in tanks with a capacity of 3L, for 10 minutes to evaluate the optimal dose. After induction for fish were free of aquarium aqueous plant extract to evaluate the recovery time. After the anesthetic recovery, mortality was monitored and the water quality in each experimental aquarium. As well as the chemical analysis of the soil to see if there was influence between the ground and the plant material under study, the same way that the identification of different substances contained in the aqueous extracts of the leaves, through the analysis by Gas Coupled with Mass Spectrometry (GC EM), where it was observed that the presence of two substances (the cunaniol and other unidentified substance), being this last the majority fraction. According to the findings for the study of transport, there was no significant difference between the concentrations for the induction time, demonstrating that the aqueous extract of cunambí induction time is statistically the same for all concentrations tested, but for the time recovery was no significant difference between the concentrations tested. After the simulation of transport, according to the T test, it was found that the concentration of 1ml / l, is significantly to reduce mortality of the fry tambaqui during transport of 12 hours duration. For performing biometric concentration of 0.5 ml / L was the treatment they needed more time to achieve the desired induction stage of deep sedation (7.4 minutes), however there was a significant difference compared to the concentrations of 1, 5 (16.6 min) and 2.5 ml / l. (23.7 min), however, the concentration of 0.5ml / L is ideal for the biometric management procedure and brief. The results suggest that cunambí is an excellent alternative in the anesthetic induction of tambaqui transportation and biometrics.