| dc.contributor.advisor | Prof. Dr. S.M. Harun-Ur-Rashid | |
| dc.contributor.author | REZA, SHAKILA | |
| dc.date.accessioned | 2022-04-25T04:40:28Z | |
| dc.date.available | 2022-04-25T04:40:28Z | |
| dc.date.issued | 2014-06 | |
| dc.identifier.uri | http://localhost:8080/xmlui/handle/123456789/848 | |
| 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 | AVIAN COCCIDIOSIS AT DIFFERENT UPAZILA | en_US |
| dc.subject | Morbidity and Mortality Rates | en_US |
| dc.subject | Chemical and Reagents Used | en_US |
| dc.title | PREVALENCE AND PATHOLOGY OF AVIAN COCCIDIOSIS AT DIFFERENT UPAZILA IN DINAJPUR DISTRICT | en_US |
| dc.type | Thesis | en_US |
