Infectious bronchitis (IB) is a highly contagious viral respiratory disease. The importance of IB
infection is its negative effect on the bird’s growth rate and feed efficiency; flocks also have a
high percentage of condemnation at processing.
SIGNS
Baby chick
• Wheezing, coughing, and sneezing are detectable at night
• Watery eyes, nasal discharge, and swollen sinuses can be seen
• Mortality is usually low but in cases of secondary infections may reach 50%
Growing broiler birds are not generally affected by infectious bronchitis.
TREATMENT
There is no known treatment of IBV making prevention highly critical.
PREVENTION
• Vaccination is a reliable means of control
• Sanitation and good hygiene
• Where there is an infection, avoid the spread from house to house through equipment, feed, and vehicles.
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