1. Prepare for immunization: Before the immunization, the chickens stop supplying water for 1 to 4 hours. Generally, when 70% to 80% of the chickens look for water to drink, they are 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 to 1.5 hours. For chickens up to 4 weeks old, there are 12 liters per 1,000 chickens, 4 to 8 weeks old chickens have 20 liters per 1,000 litters, and chickens over 8 weeks old have 40 liters per 1,000 litters. After calculating the amount of vaccine and diluent, add 0.1% to 0.3% skimmed milk powder (without skim milk powder) in the diluent. Stir well. Vaccine should be diluted with a small amount of diluent before adding the remaining solution to a large container. Stir together. ,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 to 1.5 hours.
4. Precautions: (1) In the hot season, drinking immunity should be performed in the morning, and the drinking fountain containing the vaccine 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. (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.
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