NR ZEKA

AU Yoshikawa,H.; Ishida,Y.; Ueno,S.; Mitsuda,H.

TI Changes in Depth of Anesthesia of the Carp Anesthetized with a Constant Legel of CO2

QU Nippon Suisan Gakk 1988; 54(3): 457-462

PT journal article

AB Changes of respiration, behavior, and depth of anesthesia were examined in carp that were individually kept in a chamber supplied with water bubbled with an equi-mixture of CO2 and O2. CO2 had an anesthetic effect on all the carp at PCO2 = 125, 150 and 175 mm Hg, but these partial pressures in the ambient water were fatal in 10, 20 and 70% of the carp, respectively. Although all the carp survived in the experiment using PCO2 = 100 mm Hg, only 50% of them became anesthetized. The depth of anesthesia progressed with time and the PCO2. Recovery time from anesthetic state was 13-130 min, the mean recovery time being about 40 min in all experiments. The optimum anesthetic concentration for adult carp seemed to be between PCO2 = 100 mm Hg and 125 mm Hg.

SP englisch

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