Subacute toxicity of Fenthion to New Zealand white rabbits (Orcyctalagus cunticulus)

Abstract

The subacute toxicity of the insecticide f enthion was studied using New Zealand White Rabbits as test animals. Toxicity was noted within 24 hours in animals dosed at levels as low as 3% of the LD₅₀ value with mortality occurring 20 days following daily feeding of this lowest dose. Cumulative percent mortality was a function of both dose and exposure tine. The LD50 values resulting from daily feeding of the fenthion at 5, 10 and 20 mg kg^‐1 were 30, 12 and 9 mg kg^‐1, for 5, 10 and 15 day respectively.