Studies on Infectious Bursal Disease in Chickens. 1. Effect of Infectious Bursal Disease on Gnotobiotic and Battery Raised White Leghorns

Henry, C. W.; Brewer, R. N.; Edgar, S. A.

doi:10.3382/ps.0590506

Cited by 4 publications

(1 citation statement)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The frequency of lesions in the kidneys was the lowest among all the lesions and this observation was consistent with earlier reports (Ley et al, 1983). The kidney lesions were previously demonstrated to be due to acute glomerulonephritis, glomerulonecrosis, nephrotubular necrosis with epithelial desquamation and tissue debris in the tubular lumina (Henry et al, 1980;Ley et al, 1979bLey et al, , 1983. The urate precipitation and deposition could arise from the stasis of glomerular ltrate and urine following decreased glomerular function associated with glomerulonephritis and severe dehydration caused by reduced water intake and loss of uid from the diarrhea.…”

Section: Resultssupporting

confidence: 92%

Outbreaks of acute infectious bursal disease of chickens in Maiduguri, Nigeria (2008-2018): retrospective survey

Badau

Igbokwe

Hassan

et al. 2023

Preprint

View full text Add to dashboard Cite

Acute infectious bursal disease (IBD) outbreak caused by virulent IBD virus undermines profitable chicken production in Nigeria. Veterinary clinic-based passive surveillance is carried out by postmortem diagnosis of clinical cases submitted during disease outbreaks. Records of IBD outbreaks from two veterinary hospitals in Maiduguri, Nigeria, were extracted among all disease outbreaks in chicken flocks in the period 2008-2018. Data showed that IBD outbreaks occurred in 493 (7.6%, [95% CI: 7.0-8.3%]) out of 6,486 disease outbreaks in chicken flocks within the period. The year-specific prevalence of outbreaks varied from 1.6% (95% CI: 0.9-2.3%) to 17.3% (95% CI: 12.9-21.7%) and fitted a linear trend (r = -0.73; P<0.01) over the years, with significant (P<0.001) association with the years. The chicken-type-specific prevalence varied significantly (P < 0.05) with 25.0% in Noilers (dual-purpose), 7.2% in broilers, 7.1% in layers, 9.1% in local chickens (9.1%) and 17.4% in exotic cockerels. The ages of chickens at the time of outbreaks were 2-27 weeks; modal age was 4-5 weeks while mean age was 5.0±1.7 weeks. The mortality rate was 12.6% (95% CI: 5.9-16.2) out of total flock size of 38,485 in 2015-2018. Specific lesions for diagnosis of acute IBD during surveillance were acute exudative inflammatory swelling of bursa of Fabricius [+/-hemorrhages] (90.9%), along with hemorrhages in thigh, leg and/or breast muscles (72.2%), mucosal hemorrhages at proventriculus-ventriculus junction [+/- enteritis] (24.9%), and nephropathy (7.7%); but few cases lacked bursal swelling (9.1%). Thus, acute IBD outbreak in chickens was endemic with time-related risk factors unaccounted for during passive surveillance.

show abstract

Section: Resultssupporting

confidence: 92%

Outbreaks of acute infectious bursal disease of chickens in Maiduguri, Nigeria (2008-2018): retrospective survey

Badau

Igbokwe

Hassan

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

Genetic Sequence and Pathogenicity of Infectious Bursal Disease Virus in Chickens in Egypt During 2017–2021

Elbestawy,

El-Hamid,

Ellakany

et al. 2024

Avian Diseases

View full text Add to dashboard Cite

Histopathological evaluation of the effects of live Infectious bursal disease vaccine originated from WF2512 strain on bursa Fabricius in the broilers

ATEŞ¹,

Özdemir

ÇELİK

et al. 2022

Journal of Advances in VetBio Science and Techniques

View full text Add to dashboard Cite

Infectious bursal disease (IBD) is a viral disease that causes significant economic losses in young chickens, characterized by lymphoid depletion and inflammation in the bursa Fabricius (BF). The incidence of the disease shows an increasing trend all over the world. Active and passive immunization is very important as well as strict hygiene measures in combating outbreaks. However, the fact that live-attenuated vaccines (mild, intermediate, hot) used for this purpose cause immunosuppression because of bursal damage is seen as an important limitation. In this study, it was aimed to histopathologically investigate the effects of commercial IBD vaccines originating from WF2512 (intermediate plus/hot, orally with drinking water) on BF under routine broiler rearing conditions. For this, BFs of 55 Ross 308 hybrid breed chickens (50 test, 5 controls) from five different broiler farms were used. In addition to standard vaccines, the IBD vaccine was given on day 15, and five samples from each farm were obtained 10 days later (25th day). After the first sampling, the second BF sampling was performed at the age of 38 days. Histopathological bursal lesion score was applied to evaluate the effectiveness of the vaccine. Accordingly, it was determined that the bursal lesion score, which increased slightly to moderately in the first samples, decreased in the second samples (27-61%). This was accepted as an indication that the bursal damage, which increased with IBD vaccine administration, diminishes over time and that histological regeneration was increased.

show abstract

Studies on Infectious Bursal Disease in Chickens. 1. Effect of Infectious Bursal Disease on Gnotobiotic and Battery Raised White Leghorns

Abstract: The effect of

Cited by 4 publications

References 9 publications

Outbreaks of acute infectious bursal disease of chickens in Maiduguri, Nigeria (2008-2018): retrospective survey

Outbreaks of acute infectious bursal disease of chickens in Maiduguri, Nigeria (2008-2018): retrospective survey

Genetic Sequence and Pathogenicity of Infectious Bursal Disease Virus in Chickens in Egypt During 2017–2021

Histopathological evaluation of the effects of live Infectious bursal disease vaccine originated from WF2512 strain on bursa Fabricius in the broilers

Contact Info

Product

Resources

About