An Outbreak of Infectious Bursal Disease among Chickens between 16 and 20 Weeks Old

Okoye, J. O. A.; Uzoukwu, M

doi:10.2307/1590079

Cited by 33 publications

(21 citation statements)

References 7 publications

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“…However, these production systems, especially the subsistence are faced with myriads of challenges amongst which disease is topmost. Notable among the diseases afflicting the industry are Infectious bursal disease (Gumboro), Chicken anaemia virus, Infectious Laryngotracheitis, Fowl pox, Salmonellosis, Chronic respiratory disease, Marek's Disease, ND, Egg drop syndrome, Infectious bronchitis, Avian Influenza and so on [3,31,32,50,76,81,84]. The sustainability of this subsector is being threatened as a result of incessant outbreaks of ND in unvaccinated flocks and sporadically in vaccinated flocks [5,102].…”

Section: Poultry Production In Nigeriamentioning

confidence: 99%

“…The virus has been reported in different West and Central African countries, including Nigeria with sub-genotypes VIg, h, and i being in circulation [100,108]. Genotypes I and II were discovered in free-range and commercial poultry respectively, with close relatedness to NDV-I2 and LaSota vaccines [76] (Shittu et al 2016 unpublished data).…”

Section: Epizootiology Of Nd In Nigeriamentioning

confidence: 99%

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Newcastle disease in Nigeria: epizootiology and current knowledge of circulating genotypes

2016

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Over the years, Newcastle disease (ND) has defied all available control measures. The disease has remained at the forefront of infectious diseases afflicting poultry production after avian influenza. Despite the continuous global use of million doses of ND vaccine annually, the causative pathogen, avian paramyxovirus type 1 also known as Newcastle disease virus (NDV) has continued to evolve causing, even more, a threat not only to the unvaccinated but the vaccinated flocks inclusive. The disease has been well studied in the developed countries where the virus is found in circulation. However, limited information exists on the epizootiology and circulating genotypes of the virus in developing countries where the majority of the flocks are raised on the extensive management system. Identification of virulent NDV in apparently healthy free-range ducks in this system calls for concern and pragmatic approach to investigate factor(s) that favour the virus inhabiting the ducks without clinical manifestation of the disease. Recently, novel genotypes (XIV, XVII, and XVIII) with peculiarity to West and Central African countries have been discovered and due to lack or poor surveillance system possibility of hitherto unreported genotypes are likely. This review elucidates and discusses available literature on the diversity of the circulating NDV genotypes across the West Africa countries and the epizootiology (molecular) of the disease in Nigeria with the view of identifying gaps in knowledge that can assist in the development of effective vaccines and control strategies to combat the peril of the disease.

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Section: Poultry Production In Nigeriamentioning

confidence: 99%

Section: Epizootiology Of Nd In Nigeriamentioning

confidence: 99%

Newcastle disease in Nigeria: epizootiology and current knowledge of circulating genotypes

2016

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“…The IBD virus was obtained from a local outbreak of IBD and its identity confirmed by standard laboratory methods (Okoye & Uzoukwu, 1981). A 20% bursal homogenate was prepared in phosphate buffered saline (PBS) and centrifuged at lOOOrpm for lOmin.…”

Section: Ibd Virus Inoculummentioning

confidence: 99%

“…were negative for ND haemagglutinationinhibition antibodies using the microtitre beta procedure (Beard, 1989) and chicken anaemia virus neutralising antibodies by the method of McNulty (1989). The sera were positive for IBDV precipitating antibodies using the agar gel diffusion precipitation test (AGDT) (Okoye & Uzoukwu, 1981).…”

Section: Ibd Virus Inoculummentioning

confidence: 99%

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Comparative study of the resistance or susceptibility of local Nigerian and exotic chickens to infectious bursal disease

Okoye

Aba-Adulugba

1998

Avian Pathology

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Local or village chickens are the major source of poultry products in less developed countries, but information is limited on their susceptibility or resistance to diseases. In this work, 6-week-old local Nigerian chickens, pullets and broilers were used. One day before infection the mean body weight of the broilers was more than twice that of the pullets and local chickens. The bursa: body weight (B:BW) indices of the pullets and local chickens were similar, but were significantly higher than those of broilers. Following inoculation intraocularly with pathogenic infectious bursal disease virus (IBDV) drowsiness, drop in feed and water consumption, and diarrhoea were observed among the local chickens and pullets on day 2 post inoculation (p.i.) and in the broilers on day 3 p.i. Body weight losses from 1 to 11 days p.i. were significantly higher in the local chickens and pullets than in the broilers, total mortalities being 17.6, 50.0 and 61.51% in broilers, pullets and local chickens, respectively. Necropsy showed that dehydration and proventricular haemorrhages occurred most frequent in the local chickens. The response correlated with the B:BW indices on day 14 p.i.This showed that local Nigerian chickens are more susceptible to IBD than broilers and slightly more susceptible than pullets, explaining earlier reports that mortality due to IBD was higher in pullets or light breeds of chicken than in broilers or heavy breeds.

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Infectious bursal disease in 14-week-old turkeys in Nigeria

Owoade

Durojaiye

1995

Trop Anim Health Prod

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An Outbreak of Infectious Bursal Disease among Chickens between 16 and 20 Weeks Old

Cited by 33 publications

References 7 publications

Newcastle disease in Nigeria: epizootiology and current knowledge of circulating genotypes

Newcastle disease in Nigeria: epizootiology and current knowledge of circulating genotypes

Comparative study of the resistance or susceptibility of local Nigerian and exotic chickens to infectious bursal disease

Infectious bursal disease in 14-week-old turkeys in Nigeria

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