EFFECT OF CHLORAL HYDRATE ON METABOLIC RATE OF LABEO ROHITA (HAM) AND POECILIA RETICULATA (PETERS)
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Authors
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L. L. SHARMA
Rana Hanuman Singh Krishi Vigyan Kendra,
Badgaon, P.O. Pala, Dist. Balaghat (M.P.) 481 115.
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S. K. SHARMA
Rana Hanuman Singh Krishi Vigyan Kendra,
Badgaon, P.O. Pala, Dist. Balaghat (M.P.) 481 115.
Abstract
Comparative impact of chloral hydrate anaesthesia on the metabolic
rate of Indian major carp Labeo rohita and larvivorous fish Poecilia
reticulata was assessed. Observation on the oxygen consumption rate
(OCR) revealed that in common guppies OCR was substantially low (1.105
and 1.097 mg/g!hr) at 0.1 and 0.25 gil concentrations of chloral hydrate as
against OCR of 1.487 mg/g/hr in the control. Fry of L.rohita in group·
showed lower metabolic rates in the control as well as treated conditions
as compared to the individuals of this fish. This may be due to sympathetic
psychophysiological reflex of grouped fish. Higher dose of chlo1·al hydrate
(0.25g!l) also caused higher OCR probably due to distress. Application of
chloral hydrate also favoured lesser release of metabolic wastes (ammonia
and carbon dioxide). There was significant positive correlation between
time and oxygen consumption, whereas, for time and OCR this relationship
was negative. Regression of chloral hydrate doses for OCR and time has
also been calculated.
