| dc.contributor.advisor | Prof. Dr. S. M. Harun-ur-Rashid | |
| dc.contributor.author | FERDOUSI, KHANDKER MST. AFSANA | |
| dc.date.accessioned | 2022-04-21T08:16:15Z | |
| dc.date.available | 2022-04-21T08:16:15Z | |
| dc.date.issued | 2012-06 | |
| dc.identifier.uri | http://localhost:8080/xmlui/handle/123456789/412 | |
| dc.description | Poultry industry is a rising sector in Bangladesh. Poultry eggs and meat
provide approximately 38% of total animal protein in Bangladesh. Many
small and medium farmers are rearing poultry in Bangladesh. Bangladesh is
considered as one of the most appropriate countries in the world for poultry
rearing (FAO, 1999). Poultry is essential to the national economy of
Bangladesh and the welfare of human beings as well. But the advancement
of poultry industry is being hampered seriously by some fatal infectious and
noninfectious diseases. Avian leukosis virus (ALV) infection has been
regarded as one of the important causes of economic damage in the poultry
industry (Spencer, 1984). | en_US |
| dc.description.abstract | The aim of this study was observed the pathological lesions of avian leukosis in
Rangpur district.In a period of six months, a total of 433 birds were observed.
Layer birds (13.3%) were mostly affected than broiler (6.73%). Birds reared in a
poultry farm were mostly affected than in backyard system (20.74%). Mortality
of affected birds experienced at the age of 16 weeks and above.Histopathological
lesions of clinical samples were studied and lesions included homogeneous
population of lymphoblasts,nodular and diffuse in liver, diffuse infiltration of
lymphocytes with mitotic figures in the liver, displacement and compression of
the hepatic parenchyma by the accumulation of large number of neoplastic
lymphocytes,which were characterized by round cells,scanty cytoplasm and deep
staining nuclei and distorted hepatic cords and severely congested blood vessels. | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | HAJEE MOHAMMOD DANESH SCIENCE AND TECHNOLOGY UNIVERSITY, DINAJPUR | en_US |
| dc.subject | Pale colour liver in bird | en_US |
| dc.subject | Enlargement of spleen in bird | en_US |
| dc.subject | Homogenous population of lymphoblasts nodular in the 44 liver (H & E, X1200). | en_US |
| dc.subject | Avian leukosis under Farm and rural conditions | en_US |
| dc.title | PATHOLOGICAL STUDY OF AVIAN LEUKOSIS IN RANGPUR DISTRICT | en_US |
| dc.type | Thesis | en_US |
