1. Prepare for immunization: Before the immunization, chickens will stop supplying water for 1-4 hours. When 70%-80% of the chickens are looking for water to drink, they will be immunized again. 2. Dilution vaccine: When drinking water is immunized, the amount of drinking water is 40% of the daily water consumption, so that the vaccine solution can be finished within 1-1.5 hours. The number of chickens within 4 weeks of age is 12 liters per 1,000 litres, chickens of 4-8 weeks old are 20 liters per 1,000 litter, and chickens of 8 weeks old and above are 40 liters per 1,000 litres. After calculating the amount of vaccine and diluent, add 0.1% --- 0.3% non-fat dry milk (without skim milk powder) to the dilution. Stir well. The vaccine should be diluted with a small amount of diluent before adding the rest to a large container. Stir and use immediately). 3. Drinking Water Immunity: Add the prepared vaccine water to the drinking fountain and drink it to the chicken. The water time for the vaccine was the same, and the water dispensers were evenly distributed, making the same group of chickens drink vaccine water at substantially the same time. And drink within 1-1.5 hours. 4, note: (1) During the hot season, drinking water should be immunized in the morning and the vaccine-equipped waterer should not be exposed to sunlight. (2) Drinking water immunity prohibits the use of metal containers, generally using hard plastic or enamel utensils. (3) Drinking equipment should be cleaned before immunization. Clean the drinking water appliance with clean water or boiling water so that it does not leave any disinfectant, rust, or sputum. (4) Residual vaccines and spent (empty) vaccine bottles after immunization should be boiled and disinfected and should not be thrown at random. (5) When the vaccine is diluted, it is necessary to pay attention to aseptic operation, and the equipment used must be strictly disinfected. Diluent (drinking water) should be clean, free of chloride ions, heavy metal ions, antibiotics and disinfectants (usually neutral distilled water, cool warm water or deep well water). (6) The amount of vaccine must be accurate, generally should be 2-3 times the dose of immunization. (7) There should be enough drinking fountains to ensure that each chicken can drink enough vaccine water. Freeze-dried powder is a sterile powder injection obtained by freezing the liquid medicine into a solid state in a sterile environment, and subliming and drying the water in a vacuum. Freeze-dried powder is composed of a bottle of high-purity and high-active biological protein freeze-dried powder and a high-purity liquid essence. When using, it needs to be connected with a patented vacuum to reconstitute the freeze-dried powder and the essence to activate the biological protein activity. Freeze Dried Fruit Powder,Strawberry Powder,Freeze Dried Powder,Raspberry Powder YT(Xi'an) Biochem Co., Ltd. , https://www.ytlinkherb.com