| dc.contributor.advisor | Prof. Dr. S.M. Harun-Ur-Rashid | |
| dc.contributor.author | REZA, SHAKILA | |
| dc.date.accessioned | 2022-04-23T05:35:23Z | |
| dc.date.available | 2022-04-23T05:35:23Z | |
| dc.date.issued | 2014-06 | |
| dc.identifier.uri | http://localhost:8080/xmlui/handle/123456789/590 | |
| dc.description | Poultry are kept in backyards or commercial production systems in most areas of
the world. Compared to a number of other livestock species, most of the people
are related with the production, marketing, and consumption of poultry products.
For these reasons, poultry products have become one of the most important
protein sources for people throughout the world. The total number of poultry in
the world has been estimated by the Food and Agriculture Organization of the
United Nations (Anders and Jorgen, 1998) as of 14,718 million, with 1,125
million distributed throughout the Africa, 1,520 million in South America and
6,752 million in Asia, 93 million in Oceania, 3,384 million in North America and
1,844 million in Europe. Bangladesh is one of the most densely populated country
in the world with 152.5 million people (PDEU, 2011). A total of 5 million people
are engaged in poultry sector (Saleque, 2006) with about 1,10,800 small and large
scale poultry farms in this country (Anon, 2006). The increasing demand and
economic aspect has created a lot of interest among the people to raise poultry
either through backyard or intensive commercial farming system. | en_US |
| dc.description.abstract | The study was intended to investigate the prevalence and pathological status of avian
coccidiosis at different upazila like Sadar, Chirirbander, Parbatipur, Fulbari, Birampur,
Nawabgonj in Dinajpur district from January to June, 2014. A thorough clinical and
necropsy examination was done and to record characteristics clinical signs and gross
lesions. Different organs mainly small intestine and caecum were collected, preserved
and processed for histopathological examination. A total of 354 diseased and dead birds
of 12 farms were examined. In which 31 (9.65% in broiler and 7.10% in layer) birds
found to be positive for coccidiosis. The propotional mortality rate of coccidiosis were
10.66%, 9.33%, 6.17% 2.1%, respectively in age group of 0-4 weeks, 5 - 6 weeks, 7 - 8
weeks and above 8 weeks. The mortality rate was hight in 0-4 weeks age group (10.66%)
and lowest in above 8weeks age group (2.1%). The clinical signs of the affected birds
were depression, ruffled feather, bloody diarrhea, anaemia, drooping wings, paler comb
and wattle. At necropsy, enlargement and ballowing shape of caecum with pin point
hemorrhage on intestinal mucosa and fresh or clotted blood were found in the intestinal
lumen. Histpathologically, the mucous membrane was found to be severely damaged and
there was no continuity of mucosal layer of intestine, distortion of architecture and
desquamation of lining cells were present. Infiltration of inflammatory cell in the
musculature was also observed. The villi of the mucosa were destroyed. Disorganization
of the lining epithelium was also found. The bio-safety measures, farmers knowledge
and protection programs against the disease did not comply with the approved standards.
Thus bio-safety measures, vaccination and proper treatment must be done to improve the
management of coccidiosis in poultry farms of Dinajpur district. | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | HAJEE MOHAMMAD DANESH SCIENCE AND TECHNOLOGY UNIVERSITY, DINAJPUR. | en_US |
| dc.subject | PATHOLOGY OF AVIAN COCCIDIOSIS AT DIFFERENT UPAZILA IN DINAJPUR DISTRICT | en_US |
| dc.subject | Classification of Coccidiosis | en_US |
| dc.subject | Morbidity and Mortality Rates | en_US |
| dc.title | PREVALENCE AND PATHOLOGY OF AVIAN COCCIDIOSIS AT DIFFERENT UPAZILA IN DINAJPUR DISTRICT | en_US |
| dc.type | Thesis | en_US |
