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20113
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Subject: Zoology × End date: 2011 × Start date: 2011 × Type: Thesis ×
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    ThesisItemOpen Access
    GASTROPOD INFESTATION IN PLANT NURSERIES AT DIFFERENT LOCATIONS AND THEIR MANAGEMENT WITH LATEX OF SOME PLANTS Thesis
    (PAU Ludhiana, 2011) HARJOT KAUR; Harjit Kaur)
    Survey of five plant nurseries at different locations viz. New Indian nursery and Gulrej nursery at Dhuri, Bhagwaan and Golden nursery at Malerkotla and Plant nursery PAU, Ludhiana for gastropod population revealed that one snail, Macrochlamys indica and one slug, Filicaulis alte Ferussac with three colour forms viz. black slug with yellow mid-dorsal streak, brown slug with black spots, black slug were infesting the plant nurseries. Slugs and snails preferred soil with low bulk density, high porosity and high moisture. Impact of three treatments on gastropod (snails and slugs) trapping was in following order- Damp conditions > Beer traps > Spots with Spinach. Snails and slugs excavated holes within leaves of ornamental plant saplings. More damage was observed during the months of June, July and October when the population density of snails and slugs active at soil surface was more. Hence, more emphasis should be laid down on gastropod control during the months of June, July and October to prevent the damage to ornamental plant saplings. Laboratory feeding tests revealed that out of the different concentrations of crude latex of different plants viz., Euphorbia splendens, Calotropis procera, Ficus bengalensis and Ficus elastica, bait with 2 per cent crude latex of E. splendens proved to be most effective bait resulting in 36.7 per cent mortality (F. alte, black slug with yellow mid-dorsal streak) with highest consumption among all the different concentrations of all the four plants. Thus, E. splendens latex acts not only as molluscicide but as attractant also.
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    ThesisItemOpen Access
    EFFICACY OF TRIPTOLIDE IN POPULATION REGULATION OF Rattus rattus (Linnaeus) IN POULTRY FARMS
    (Punjab Agricultural University Ludhiana, 2011) Swati; Singla, Neena
    Feeding of 0.1, 0.2 and 0.3% triptolide in bait for 5 days in no-choice feeding test to male Rattus rattus (Linnaeus) in laboratory resulted in average per day consumption of 10.76, 20.45 and 22.60 mg/kgbw of triptolide, respectively and 75.92-93.00% acceptance of treated bait over plain bait. No significant effect of triptolide treatment was observed on body weight and reproductive organ weights of rats after 30 days of termination of treatment. The sperm motility and viability in the cauda epididymal fluid of rats treated with 0.2% triptolide was found to be decreased significantly by 80.65 and 75.14%, respectively from that of untreated rats. The major effect of triptolide treatment on sperm morphology was sperm head tail separation which varied from 46.13-53.69% in treated groups of rats. Laboratory breeding revealed 66.67, 100.00 and 33.33% decrease in pregnancy rate of females paired with males treated with 0.1, 0.2 and 0.3% triptolide, respectively. Treatment of poultry farm with 0.005% bromadiolone followed by second treatment with 0.2% triptolide at 15 days interval for 5 days revealed significantly lower rodent population rebuild up (16.30%) than that observed in poultry farm treated only with 0.005% bromadiolone (51.87%). Only 25% of the rats trapped from poultry farm treated with triptolide revealed antifertility effects which may be due to partial recovery in effects after about 60 days of termination of treatment. Present studies suggest the potential of 0.2% triptolide in bait for 5 days in regulating post control population rebuild up of R. rattus in poultry farms.
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    ThesisItemOpen Access
    IDENTIFICATION AND CHARACTERIZATION OF SPERM MEMBRANE ANTIGENS ACQUIRED DURING EPIDIDYMAL MATURATION AND THEIR EVALUATION FOR IMMUNOCONTRACEPTION IN THE HOUSE RAT, Rattus rattus LINNAEUS.”
    (Punjab Agricultural University Ludhiana, 2011) Vashishat, Nisha; Dhanju, C. K.
    IDENTIFICATION AND CHARACTERIZATION OF SPERM MEMBRANE ANTIGENS ACQUIRED DURING EPIDIDYMAL MATURATION AND THEIR EVALUATION FOR IMMUNOCONTRACEPTION IN THE HOUSE RAT, Rattus rattus LINNAEUS.”