Abstract
Locally available and palatable food grains viz. millet (whole), wheat (cracked), maize (cracked) and rice (broken) were tested for their preference to rodents. Results of no-choice and multiple choice feeding tests indicated that millet was the most preferred food. Similarly locally available taste additives namely peanut cracked (5%), yeast (2%), fish meal (5%), egg shell powder (5%), carbon disulphide (CS2) 30 ppm and jaggery (gur/sugar 5%) were offered mixed in millet-wheat (50:50 by wt.) bait. The results of paired choice and multiple choice feeding tests revealed that consumption of bait with added egg shell was significantly higher (p > 0.05) than bait with the other five additives. Grain bait with egg shell was then tested for its effectiveness as a carrier for the rodenticides zinc phosphide (2%) and coumatetralyl (0.0375%). The reduction in rodent activity after zinc phosphide and coumatetralyl treatment was 70% and 82%, respectively.
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