Outbreak of infectious bursal disease in a flock of 14 weeks old ISA brown pullets, Sokoto State, Nigeria
1 Department of Veterinary Medicine, Usmanu Danfodiyo University, Sokoto, Nigeria.
2 State College for Basic and Remedial Studies, Sokoto State, Nigeria.
Research Article
GSC Biological and Pharmaceutical Sciences, 2019, 09(02), 001-008.
Article DOI: 10.30574/gscbps.2019.9.2.0182
Publication history:
Received on 22 September 2019; revised on 07 October 2019; accepted on 24 October 2019
Abstract:
This study reported the clinical signs and pathological effects of Infectious bursal disease (IBD) virus in 14 week old Isa brown IBD- vaccinated pullets. Clinical signs, pathologic lesions, morbidity as well as mortality rates on the natural outbreak of infectious bursal disease (IBD) in pullets under deep litter system in a commercial poultry farm in Sokoto, Nigeria were observed and recorded. Tissues of bursa of Fabricius (BF) were collected and fixed in 10% buffered formalin and processed for histopathological examinations. During the outbreak, morbidity and mortality rate of 40% and 22% respectively were recorded and the disease course lasted for 7 days. The disease was diagnosed based on clinical signs, gross- and histo- pathologic lesions as well as agar gel immunodiffusion test (AGID). Clinical signs, gross lesions, and histopathological findings were characteristic of very virulent infectious bursal disease.
Keywords:
Infectious bursal disease; Pullets; Clinical Signs; Pathologic lesions; Bursa of Fabricius
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Copyright © 2019 Author(s) retain the copyright of this article. This article is published under the terms of the Creative Commons Attribution Liscense 4.0
