Résumé
Crude extract (12.5 ml/kg) of N. indicum seed gave 100% mortality of B. bengalensis. Humanness assessment study revealed that this plant orgin chemical caused low pain and sufferings to the target pests.
Sujets)
Animaux , Comportement animal/effets des médicaments et des substances chimiques , Muridae/physiologie , Nerium , Lutte biologique contre les nuisibles , Extraits de plantes/toxicité , Raticides/toxicité , GrainesRésumé
The lesser bandicoot rat after ingesting a sublethal dose of 0.025% zinc phosphide, in preferred food millet (Pennisetum typhoides) grains, for 4 days, showed aversion for 5-6 days towards plain millet offered in choice with the less preferred sorghum (Sorghum vulgare) grains. The aversion response to nontoxic bait was stronger (aversion index greater than 0.7) for first 3-4 days in individual and for 1-2 days in paired rats. 100% or more shift in aversion index from pre-treatment to post-treatment periods indicated that the aversive and naive partners of the heterosexual and unisexual female pairs mutually influence the feeding preferences of each other as a result of which they showed aversion for first 2-3 days to the plain food in which poison was given to one of the partner earlier.
Sujets)
Administration par voie orale , Aliment pour animaux , Animaux , Conditionnement psychologique , Femelle , Préférences alimentaires , Mâle , Muridae/physiologie , Phosphines/administration et posologie , Raticides/administration et posologie , Goût , Zinc/administration et posologie , Composés du zincRésumé
R. r. rufescens litter throughout the year with two peaks. The prevalence of pregnancy was maximum during early summer and postmonsoon seasons. Day length and day temperature influenced the breeding pattern which was supplemented by the availability of stored foodgrains in the habitat.