FIELD VACCINATION 3.1 Spray Vaccination with Backpack Sprayer System (cont.) Vaccine Mixing House Preparation » Mix the vaccine on the farm, just prior to vaccinating each house and mix only enough vaccine to vaccinate one house. » Minimize ventilation if possible. » Dim the lights as low as possible to keep the birds calm during vaccination. » Use clean, non-chlorinated water or water that has had vaccine stabilizer added. Distilled water is ideal. Water should be between 16 °C (60 °F) and 27 °C (80 °F). Err towards the cool side as hot water can damage the vaccine. » Raise brooders (if possible). » During hot weather, vaccinate very early in the morning.
» Pour enough water into the sprayer tanks to allow the vaccination team to walk the length of the house twice SLOWLY without running out of vaccine. (minimum 1.25 liters per 10 meters, or 1 gallon per 100 feet). Vaccine Administration COBB VACCINATION MANAGEMENT GUIDE » Walk slowly. Start at one end of the house and make two complete passes through the house. » Dissolve the vaccine in the vaccine bottle using distilled water, and then add the vaccine to the water in the sprayer tank. Rinse the vaccine bottle thoroughly. » One person should walk ahead of the vaccinators to part the birds and keep them from piling against the back wall.
» Shake the tanks on the sprayer to mix the vaccine thoroughly. » Each vaccinator sprays one side of the house (a third in the middle for large houses). » For quality control records, note the vaccine expiration date and serial number, date and time of vaccination, location (farm and house number), and staff members. » Direct the nozzle 1 m (3.3 feet) above the birds’ heads. » Keep a constant pressure of 65 to 75 PSI (4.5 to 5.2 Bars). Post Vaccination » Properly dispose of all empty vaccine vials, water jugs, etc. » After vaccination is completed be sure to restore ventilation by setting fans to previous settings. » Restore lighting to previous intensity. 14