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Infectious bursal disease
ISA Hendrix Genetics



Infectious bursal disease (IBD) was discovered in 1962, and it is a highly contagious and widespread disease that is present in almost all areas of intensive poultry farming.


The disease can have a severe economical impact on production, varying from direct losses due to mortality to secondary infections and the financial losses due to reduced production parameters as a result of sub-clinical infections.


The article will describe the damaging effects of IBD and the clinical symptoms of it, which includes severe diarrhoea and decreased appetite.


The disease usually runs its course in 4-7 days, but outbreaks of 2-3 days are also possible. Mortality can go up to 30 percent and survivors can recover in a few days.


The article will detail the factors that will influence the severity of a field infection are infection pressure, virus characteristics, level of immunity, genetic constitution, and other immune-suppressive agents.


The article will also list pathological changes in post mortem observations methods of the diagnosis of IBD.


There is no specific therapy for the disease, and access to water must be facilitated to prevent dehydration. Climate should be optimised and stress reduced to a minimum just like any other disease. Use of antibiotics can sometimes be advisable to limit the impact of secondary infections.


There are two prevention methods, which the article will detail, and they are hygiene maintenance and vaccination. 


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Article made possible through the contribution of ISA Hendrix Genetics.

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