[Introduction of a recirculator for long term anesthesia applicable in the surgery of fishes]

ABSTRACT

An instrument with the name of recirculator was designed for long term anaestheria of fishes for clinical and other investigations outside the water. Recirculator, circulates the water containing anaesthetic drugs over the respiratory system of fishes and prevents any distruption and contact of animal with water. After designing and production of the aforementioned instrument, it was tested an cyprinus carpia for gounadal removals and an salmo gairdneri fishes, for langterm anastheria, it was also tested on cyprinus carpio and hypophthalmichthys molitrix. The results showed that by using this procedure fishes stand the necessary time for surgery while being anasthetised by recirculator and recovery during 3-4 minutes without and any problem: