Abstract :

This study was carried out on fish channa punctatus to investigate the lethal concentration of cadmium nitrate on fish channa punctatus at 24 hr.
Experiment procedure was repeated five times at the selected cadmium nitrate concentrations, noting the number of fish killed. The mean value was taken. These values were taken to determine LC50 value for 24 hr.
Toxicity of heavy metals it may be depends upon the dose and time of exposure period.

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Keywords :

Acute toxicity, Cadmium nitrate, Channa punctatus, Pollution

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