| dc.contributor.advisor | Dr. Md. Mostafizer Rahman | |
| dc.contributor.author | CHOWDHURY, MD. DIDAR ANAM | |
| dc.date.accessioned | 2022-04-20T07:29:28Z | |
| dc.date.available | 2022-04-20T07:29:28Z | |
| dc.date.issued | 2012-08 | |
| dc.identifier.uri | http://localhost:8080/xmlui/handle/123456789/306 | |
| dc.description | Poultry is a substantial contributor to food supply of Bangladesh. Many small
and medium farmers are rearing poultry birds in Bangladesh. Bangladesh is
considered as one of the most appropriate countries in the world for poultry
rearing. Development of poultry has generated considerable employment
through the production and the marketing of poultry and poultry related
products. (M. Shamsuddoha 2011). | en_US |
| dc.description.abstract | The economically important neoplastic diseases of poultry are Marek's disease,
which is caused by a herpesvirus, and the Avian Leukosis, which is caused by
retroviruses. In this study the aim was to determine the effects of the neoplastic
diseases on the production performance in commercial layer chicken which has a
significant effect in context of Bangladesh. Marek’s disease spread horizontally
but Avian Leukosis transmit both horizontally and vertically. These diseases
cause economic loss due to increased mortality and depressed performance. The
prevalence of neoplastic disease was 46.03 % and 47.25 % in the flocks.
Reduction of production percentage upto 13 %. Birds which were suffering from
neoplastic problems found to observe depression, reduction of feed and water
intake and reduced body weight. After post-mortem examination enlargement of
liver, spleen, kidneys and other visceral organs was observed. Diffuse
lymphomatous involvement of visceral organs such as the liver, spleen, ovary,
kidney, heart and proventriculus was also seen. Marek’s disease can be protected
by the vaccination program but Avian Leukosis is done by virus eradication
program. | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | HAJEE MOHAMMAD DANESH SCIENCE AND TECHNOLOGY UNIVERSITY, DINAJPUR. | en_US |
| dc.subject | Standard body weight, feed intake, production | en_US |
| dc.subject | Instruments and appliances | en_US |
| dc.subject | Observation of the affected birds | en_US |
| dc.title | EFFECTS OF NEOPLASTIC DISEASE VIRUSES ON THE PRODUCTION PERFORMANCE OF COMMERCIAL LAYER CHICKEN | en_US |
| dc.type | Thesis | en_US |
