Do pigeons use oral vaccine tubes?

Pigeon is also used for oral vaccines, but the response is small and the duration is short. Generally, it is only about three months. The injections can prevent half a year to one year.Usually, vaccine water must be healthy when it is healthy, and the drinking heater must be sufficient, and the distribution must be reasonable to ensure that all pigeons can drink.Water usually uses distilled water or physiological saline. If you want to maintain the vaccine activity, you can add a little milk powder.