EUGENOL AS ANESTHETIC FOR CNESTERODON DECEMMACULATUS (CYPRINODONTIFORME, POECILIDAE)

VERCELLINI MARIA CLARA; REARTE RAMIRO; LUCA DI CESARE; AYALA MIGUEL ANGEL; MONTES MARTIN

LABORATORY ANIMALS

ROYAL SOC MEDICINE PRESS LTD

Lugar: LONDRES; Año: 2023

0023-6772

Anesthetics are commonly used in fish for surgery and to facilitate capture, handling and transport in aquaculture and experimental procedures. In research, the selection of the anesthetic depends on its properties and on the recovery time. Eugenol has been pointed out as an effective anesthetic for fish, alternative to traditional drugs. Although Cnesterodon decemmaculatus is widely used as a model in ecological bioassays, no anesthetic protocol has been reported for this species. The aim of the present study was to evaluate the induction time (i.e. time to reach anesthetic stage VI) and recovery time in individuals of C. decemmaculatus subjected to eugenol at a fixed concentration, according to sex and pregnancy status. Forty-one fish were divided into three groups: males, pregnant females and non-pregnant females. They were measured for total length, standard length and weight, and the condition factor (K) was calculated. No significant differences in induction and recovery times were found for sex, pregnancy status and K between groups. Results are acontribution toward the development protocol of a standard anesthetic protocol for C. decemmaculatus.