| dc.contributor.advisor | Dr. Md. Nazrul Islam | |
| dc.contributor.author | BEGUM, MOST. REBA | |
| dc.date.accessioned | 2022-04-23T07:53:32Z | |
| dc.date.available | 2022-04-23T07:53:32Z | |
| dc.date.issued | 2010-08 | |
| dc.identifier.uri | http://localhost:8080/xmlui/handle/123456789/640 | |
| dc.description | Infectious bursal disease is an acute contagious viral disease of young chickens caused
by an RNA-virus Birnavirus (Murphy et al. 1995) which is classified as a member of
the genus avibirnavirus (Pringle, 1998) of the Family Birnaviridae (Dobos et al., 1979;
Brown, 1986). | en_US |
| dc.description.abstract | Pathology of bursa of Fabricius of the birds vaccinated with commercial Gumboro vaccine
was studied. The course of the study was six months from December/2009 to May/2010. A
total of 20 flocks were recorded and these flocks were previously vaccinated with
commercially available Gumboro vaccines. The vaccination schedule and the instruction of
the vaccination were strictly followed as per producers. The samples of the bursae were
collected from the birds submitted to the Pathology laboratory during necropsy as well as
during the physical visit of the farms. The clinical signs including morbidity and mortality
rate, gross morbid lesions, histopathological lesions including bursal lesion scores were also
determined. An apparently normal flock was included to compare the results. The morbidity
rate and mortality rate was around 100% and 7-40%, respectively. Gross morbid lesions and
histopathological features of the bursa of Fabricius were as typical as the naturally Gumboro
affected flock. Maximal bursal lesion score was found in these affected flocks. | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | HAJEE MOHAMMAD DANESH SCIENCE AND TECHNOLOGY UNIVERSITY, DINAJPUR. | en_US |
| dc.subject | BURSA OF FABRICIUS OF THE BIRDS VACCINATED | en_US |
| dc.subject | Geographical distribution and prevalence of IBD | en_US |
| dc.subject | Sources and transmission of infection | en_US |
| dc.title | PATHOLOGY OF BURSA OF FABRICIUS OF THE BIRDS VACCINATED WITH COMMERCIAL GUMBORO VACCINES | en_US |
| dc.type | Thesis | en_US |
