For the active immunization of broiler chickens, and future layer chickens in order to reduce the detrimental effect on ciliary activity resulting from the infection, which may be manifested by respiratory clinical signs. Protection was demonstrated by challenge with the 793/B strain, which is a representative strain of the 793/B group.
Onset of immunity is 3 weeks after one administration of the vaccine.
Duration of immunity is 6 weeks after the first vaccination.
ADMINISTR ATION AND DOSAGE
One dose of the vaccine should be administered by nebulisation with coarse spray from 1 day of age. Older chickens can also be vaccinated by coarse spray.
One dose of the vaccine should be administered by drinking water from 10 days of age. In order to maintain immunity, chickens may be revaccinated every 3 weeks. However, do not use for birds in lay nor 4 weeks before the onset of the laying period.
Special precautions for use
Vaccinate healthy susceptible birds only.
- Store vaccine between +2°C and +8°C or 35°F and 45°F