Birsa Agricultural University, Ranchi

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Browsing Birsa Agricultural University, Ranchi by Author "A. Basu"

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    ThesisItemOpen Access
    Studies On Pathology, Transmissibility And Chemotherapy Of Manage Infestation In Rabbits
    (Birsa Agricultural University, Ranchi, 1988) Bhattacharyya Debasis; A. Basu
    In the present study, clinical manifestation and gross pathology of body coat were observed in both natural and experimentally infected rabbits at weekly interval upto 56 days post-infection. The incubation period was also observed in both groups of animals. In natural infection, the incubation period was 13 days, whereas, in artificial infection this period was seen to be 25 days. The site of onset of lesion, in natural infection group, was over the nose, whereas in experimentally infected cases the lesion started from the base of the ears, after which the spread of lesion was more or less similar in both groups. During first two weeks pei. the lesion was restricted on the facial region of the body. From third week onward, the lesions were seen on other parts of the body e.g. paws of hind and fore legs and external genitalia of both male and female. There were scab formation, alopecia and wrinkling of skin with dull, depressed and emaciated condition of the animals. On examination of the skin scraping, intensity of infection was found to be maximum at seventh and eighth week P.i. in artificially infected group (++++) and eighth week p.i. in naturally infected group (****).
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    ThesisItemOpen Access
    Studies On the Immunity Against In Rabbit
    (Birsa Agricultural University, Ranchi, 1988) Das Abhijit; A. Basu
    From the results of the various experiments of the present study, it can be concluded that the rabbits can be used as a suitable laboratory host for performing various experiments with the tick microplus. By repeated infestation the laboratory host, rabbits gains sufficient amount of resistance against further infestation with B. microplus. For this purpose four repeated infestation is sufficient. As a result of repeated infestation the rabbits attains cell mediated immunity against the ticks evidenced by increase in basophil count. Rabbits can also be immunized by inoculating tick tissus antigon, and this is more effective than immunization by repeated infestation. Inoculation of tick tissues antigen hyper sensitizes the rabbits against the ticks.