Abstract
SummaryToxic and antifertility effects of feeding poison baits of a toxicant‐sterilant, alpha‐chlorohydrin, were studied against the Indian mole rat Bandicota bengalensis. It was found that 0.5% alpha‐chlorohydrin bait was the most palatable formulation which delivered the amount of active ingredient equal to or more than MLD (82 mg/kg) to B. bengalensis in a single day's feeding. The rats suffered maximum mortality with this bait concentration both in no‐choice and bi‐choice feeding trials. Male survivors of 0.5% and 1.0% alpha‐chlorohydrin baits showed functional abnormalities of their testes as revealed by loss in testicular weight, decrease in the diameter of seminiferous tubules and thickness of seminiferous epithelium and abnormally low levels of spermatogenic cells. Effect of the poison on epididymis became apparent by the presence of epididymal lesions in caput epididymides and low levels of sperm concentration, live sperms and sperm motility in the cauda epididymal fluid. Our findings on the acceptance and toxiccum‐antifertility effects of feeding alpha‐chlorohydrin baits suggest field evaluation of this poison for the management of B. bengalensis would be appropriate.
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