Under the direction of the veterinarian responsible for the farm where vaccinated birds will be housed and with due consideration for the historical salmonella monitoring results for the farm, one of the following vaccination programme should be implemented:

One dose from one day of age followed by a second dose two weeks later.

One dose from one day of age, a second dose two weeks later and a third dose not later than three weeks before the laying period. There should be more than two weeks between the second and third administration.

A greater level of protection, with regards to the duration of immunity, is observed with the 3-dose regime.

Administration in drinking water (oral route):

The required number of doses of reconstituted vaccine is added to sufficient water that will be consumed within 4 hours.

Birds may have drinking water withdrawn for 1-2 hours before administering vaccine.

As a guide administer the vaccine in a volume of at least 2 litres of drinking water per 1,000 chickens at first vaccination and at least 5 litres of drinking water per 1,000 chickens at second vaccination two weeks later.

If a third dose is administered, use at least 10 – 20 litres of drinking water per 1,000 chickens. This third dose should be administered not later than three weeks before the laying period.