| dc.contributor.advisor | Prof. Dr. S. M. Harun-ur-Rashid | |
| dc.contributor.author | ROUF, ABDUR | |
| dc.date.accessioned | 2022-04-25T04:52:47Z | |
| dc.date.available | 2022-04-25T04:52:47Z | |
| dc.date.issued | 2014-06 | |
| dc.identifier.uri | http://localhost:8080/xmlui/handle/123456789/851 | |
| dc.description | The economy of Bangladesh is mainly based on Agriculture. Our agriculture
primarily depends on Livestock. Livestock is considered as the backbone of
agriculture (Ahmed, 2000). The contribution of the livestock sub-sector to GDP at
constant prices was 1.84% in the fiscal year 2012-13 (BER, 2014). There are 78171
Lac registered poultry farms in 64 districts of Bangladesh till February, 2014. From
poultry, Bangladesh gets 67452.80 Lac egg annually (BER, 2014). Meat and eggs
are two major sources of animal protein. Bangladesh is one of the developing
countries facing acute shortage of animal protein. The poultry meat alone
contributes a substantial 37% of the total meat production in Bangladesh (Begum
et al. 2011). Protein is the most important constituent of human’s food. Poultry
meat and eggs provide approximately 38% total animal protein in the country
(FAO, 1999). It is estimated that the share of poultry in the animal protein of
human diet increased from 14% in 1977 to 23% in 1987 and in further estimated to 30% in 1995 (Alam, 1997) and the local chicken supply approximately 71% of
the total meat (Paul and Islam, 2001). | en_US |
| dc.description.abstract | The study was designed to investigate prevalence and pathology of Infectious
Bursal Disease (IBD) of sonali chicken at different upazila in Gaibandha Distict in a
short six month duration starting from Janury to June2014. Eight sonali chicken
farms with sum of 3230 birds of various age group from four different upazila like
Sadar, Palashbari, Suddulapur and Gobindogonj were suspected for Infectious
Bursal Disease (IBD). On the basis of detail about farm history, clinical signs and
postmortem investigation of infected chicks, the prevalence of IBD was 10%,
10.95%, 7.89% and 12% in Sadar, Palashbari, Suddulapur and Gobindogonj upazila,
respectively with an overall prevalence 10.21% at Gaibandha district. The
prevalence of IBD in sonali chickens was the highest (11.98%) at 4th week of age
and the lowest (7.88%) at 6th week of age. No sonali chick was identified as
positive for IBD in their first two weeks of age. The highest mortality was observed
at Gobindogonj upazila (5%) and the lowest (3.80%) at Palashbari upazila, with
total mortality rate 4.19%. The necropsy findings of infected chicks revealed
haemorrhages on thigh and brest muscles; enlarged, edematous, hyperemic and
haemorrhagic Bursa of Fabricious followed by atrophy. In some cases kidneys
were found swollen. Severe lymphoid depletion and reactive cells infiltration in
the interfollicular space were found in histopathological studies by using H & E
stain. Therefore, it was concluded that susceptibility of chicks to IBD is influenced
by its age. Ruffled feather, depression, whitish diarrhoea with haemorrhagic
muscles and inflammed, edematous, hyperemic Bursa of Fabricious is attributable
to Infectious Bursal Disease (IBD). | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | HAJEE MOHAMMAD DANESH SCIENCE AND TECHNOLOGY UNIVERSITY, DINAJPUR. | en_US |
| dc.subject | INFECTIOUS BURSAL DISEASE | en_US |
| dc.subject | Geographical distribution of IBDV | en_US |
| dc.subject | Breeds Susceptibility | en_US |
| dc.title | PATHOLOGICAL INVESTIGATION OF INFECTIOUS BURSAL DISEASE (IBD) IN SONALI CHICKEN AT GAIBANDHA DISTRICT | en_US |
| dc.type | Thesis | en_US |
