Tylosince treats common respiratory infections. For prevention during the racing season, mis one teaspoon to a gallon of drinking water for 1 or 2 day - every 2 weeks, preferably starting the day after the race. As a treatment, mix one teaspoon to a gallon of drinking water for 5-7 consecutive days. This may be repeated if necessary, after a few days. Multivitamins should be given to your birds for at least one day after medication and as a maintenance dose once a week. Do not give the day of shipping.