Announcing the 2017 CALAS Symposium Talking Poster Award Winner!
Congratulations to 2017 Talking Poster Award winner Dr. Frederic Chatigny. His poster, “Assessing the side-effects of lidocaine used as an analgesic on rainbow trout,” investigated the potentially beneficial effects of lidocaine used as a local anesthetic for trout.
Dr. Chatigny was raised in Quebec City and received his veterinary degree at the University of Montreal. He then worked in a private practice before moving to Prince Edward Island, Canada, to undertake a master's degree under the supervision of Don Stevens and Collins Kamunde. Dr. Chatigny is primarily interested in welfare and wants to pursue a career in the field of laboratory animal medicine.
The Talking Poster Award, which Animal Care Systems sponsors, is given to the attendee whose talking poster presented at the CALAS Annual Symposium is judged to be the best. Selection is based upon originality, educational and scientific merit, organization, and overall presentation, including oral projection and audience rapport.
Assessing the side-effects of lidocaine used as an analgesic on rainbow trout
F. Chatigny, E.D. Stevens, C. Kamunde, D.B. Groman
Department of Biomedical Sciences, University of Prince Edward Island, Charlottetown, PEI
Fish are proving to be a useful animal for many types of research. Unfortunately, their increased popularity in recent years has not been accompanied by an important improvement of our understanding of their welfare. There is ongoing debate about whether or not fish can consciously feel pain, but it is agreed that they can perceive noxious stimuli. They are regularly exposed to such stimuli through various procedures related to research, yet analgesics are rarely used. We are evaluating if lidocaine, a local anesthetic widely used in humans and other species, could be a useful option. We have started by looking at potential side effects of the infiltration of a high dose of lidocaine (20 mg/kg) on each side of the dorsal fin of young rainbow trout (15 fish per group). In addition to those doses of lidocaine, we also infiltrated one group with the same volume of saline and another group was anesthetized only. The fish were housed individually during the trial period during which they were observed and recorded for 4h after infiltration and fed at 6 different time points (15 min, 30 min, 1h, 2h, 3h, 4h). We then analyzed their behavior using the tracking software Lolitrack (Loligo Systems) and we did histopathology of the infiltration site. We also recorded their ventilation rate using the remote function of GoPro cameras placed on the side of each trial tank. Our results show some potentially beneficial effects of lidocaine used as a local anesthetic for trout. Further studies are needed to find an optimal analgesic dose.