Infectious Bursal Disease Emulsified Vaccine: Effect upon Neutralizing-Antibody Levels in the Dam and Subsequent Protection of the Progeny

1979 ◽  
Vol 23 (2) ◽  
pp. 466 ◽  
Author(s):  
Benjamin Lucio ◽  
Stephen B. Hitchner
Keyword(s):  
Neutralizing Antibody ◽  
Infectious Bursal Disease ◽  
Bursal Disease ◽  
Antibody Levels ◽  
Vaccine Effect

Infectious Bursal Disease Viral Infections. I. Complement and Virus-Neutralizing Antibody Response Following Infection of Susceptible Chickens

1979 ◽  
Vol 23 (1) ◽  
pp. 95 ◽  
Author(s):  
J. K. Skeeles ◽  
P. D. Lukert ◽  
E. V. De Buysscher ◽  
O. J. Fletcher ◽  
J. Brown
Keyword(s):  
Antibody Response ◽  
Viral Infections ◽  
Neutralizing Antibody ◽  
Infectious Bursal Disease ◽  
Bursal Disease

scholarly journals Subclinical Infectious Bursal Disease in an Integrated Broiler Production Operation

1992 ◽  
Vol 4 (4) ◽  
pp. 406-411 ◽  
Author(s):  
Bruce L. Homer ◽  
Gary D. Butcher ◽  
Richard D. Miles ◽  
Alfredo F. Rossi
Keyword(s):  
Broiler Chickens ◽  
Infectious Bursal Disease ◽  
Enzyme Linked Immunosorbent Assay ◽  
Production Operation ◽  
Field Exposure ◽  
Vaccination Programs ◽  
Bursal Disease ◽  
Antibody Titers ◽  
Lymphoid Depletion ◽  
Antibody Levels

A field study was designed to determine the prevalence of subclinical infectious bursal disease (IBD) in broiler chickens from a commercial poultry company. Bursae of Fabricius (BF) from two vaccinated and three nonvaccinated broiler flocks were evaluated histologically, and antibody profiles of these broiler and matched parent breeder flocks were established. Lesions of IBD, including lymphoid necrosis, stromal edema, and infiltrates of heterophils and macrophages, were first detected in BF at 24 days of age in both vaccinated and nonvaccinated chickens. At 41 days, all BF had lesions characteristic of IBD, including severe lymphoid depletion, proliferation of epithelial cells, and mild fibroplasia. Although mean maternal antibody levels (measured by enzyme-linked immunosorbent assay) in broilers were apparently protective through day 12, IBD antibodies decreased to nonprotective levels (below 1,000) by day 16 or 20. Titers began to increase by day 28 or 32 because of field exposure. Sentinel birds, placed with broiler flocks, also developed IBD antibody titers. Broiler breeders had low and nonuniform antibody titers. Prevalence of field IBD exposure was high, and existing vaccination programs were not effective.

EVALLUTION OF TWO VACCINATION SCHEDULES FOR NEWCASTLE AND INFECTIOUS BURSAL DISEASE

2007 ◽  
Vol 6 (2) ◽  
pp. 127-132
Author(s):  
A Ali ◽  
A Nadim ◽  
A Harith ◽  
A Dina ◽  
A A.K ◽  
...  
Keyword(s):  
Infectious Bursal Disease ◽  
Bursal Disease
Sign in / Sign up

Export Citation Format

Share Document