| dc.contributor.advisor | Prof. Dr. S. M. Harun-ur-Rashid | |
| dc.contributor.author | ROUF, ABDUR | |
| dc.date.accessioned | 2022-04-19T04:52:38Z | |
| dc.date.available | 2022-04-19T04:52:38Z | |
| dc.date.issued | 2010-06 | |
| dc.identifier.uri | http://localhost:8080/xmlui/handle/123456789/167 | |
| 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 ef 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, Sudduiapur 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 4" week of age
and the lowest (7.88%) at 6" 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 MOHAMMOD DANESH SCIENCE AND TECHNOLOGY UNIVERSITY, DINAJPUR | en_US |
| dc.subject | History of IBDV | en_US |
| dc.subject | Epidemiology | en_US |
| dc.subject | Geographical distribution of IBDV | en_US |
| dc.subject | Susceptible Hosts | en_US |
| dc.title | PATHOLOGICAL INVESTIGATION OF INFECTIOUS BURSAL DISEASE (IBD) IN SONALI CHICKEN AT CAIBANDHA DISTRICT | en_US |
| dc.type | Thesis | en_US |
