1. Chicken vaccines, also known as antigens, are biological products. Can be divided into poisonous seedlings, poisoning seedlings, and virulent vaccines. In the production methods are divided into freeze-dried seedlings and wet seedlings, the preservation method is not the same, freeze-dried vaccines should be kept in a frozen quick-freezer, wet vaccines, also known as liquid vaccines, to be stored at 0 °C ~ 8 °C In the freezer, because the refrigeration equipment in the countryside is incomplete, most chicken farmers are not rich and have no refrigerators. Therefore, they must use them nowadays, especially during the summer, they must add ice to the vaccine when they get home. And it is best to drink ice water in drinking vaccine, but also to avoid direct sunlight in order to ensure the effect.
2. When purchasing a vaccine, first look at the name, approval number, production date, packaging dose, production site, etc. to comply with the "Veterinary Drug Labeling and Manual Management Measures" requirement, use fresh vaccines produced recently, do not use obsolete or expired Vaccines or vaccines that have not been used up by the last batch of chickens, especially if they have no refrigerators. Vaccine medicines are placed in refrigerators of relatives or neighbors, and they are stored together with frozen fish. They are better protected in professional suppliers' freezers. Because the electricity in rural areas often stops, repeated freezing and thawing will destroy the quality of the vaccine.
3. To accurately calculate the amount of epidemic use, the amount of drinking water should be increased, the amount of eye drops should be smaller than the amount of drinking water, and the diluent should be used strictly as required, such as saline, cold water, well water, or special equipment. The red (Marek) and blue (branch) dilutions should be diluted according to the amount of drinking water and the length of the drinking time to calculate the required dose. In general, control the water before drinking the vaccine, 2 hours in the summer, 3 hours in the winter, so that the chicken has a thirst to drink faster.
4. Pay attention to the method of dilution; the lid of the freeze-dried seedling is a high-pressure lid. Dilution method is to use a syringe to slowly inject the 5ml dilution into the bottle. After the bottle is dissolved, open the stopper and pour it into the water. This avoids the sudden opening of the vacuum freeze-dried seedling bottle cap, and the pressure in the bottle will suddenly increase, causing some viruses to be impacted and inactivated.
5. To increase the immune effect, the viability of the vaccine (virus) should be extended, also known as the inactivation half-life. Can add immune enhancer, drinking water can be added in each kilogram of drinking water 2.4g skim milk powder, skim milk powder is the main component of protein and carbohydrates, in which the diameter of the protein is between 1 ~ 2nm, the aqueous solution is a colloidal solution, the virus The diameter is generally between 20~30nm, the protein molecule is smaller than the virus, so the virus particle is surrounded by the protein molecule and can prevent the polymerization of the virus particle. It is good for absorption and conversion. When there is no milk powder, you can use fast supplement 20, fast supplement 18, quick supplement 14 or white sugar instead. Electrolytic multidimensional is not available because electrolysis can decompose, ionize aqueous solutions, coagulate proteins, and destroy the potency of vaccines. Be careful not to add antibiotics and electrolytic cubes in the vaccine dilution. Antibiotics can bactericidal or bacteriostatic and are not effective against viruses. Adding antibiotics to the diluent can prevent bacterial infection due to poor disinfection during the inoculation process. However, this is not entirely appropriate because some antibiotics can change the dilution. The osmotic pressure, or pH, of the liquid, especially the electrolytic multidimensional, can speed up the inactivation of vaccines and viruses, thereby reducing the potency of the vaccine.
6. Strictly control the dosage. When injecting oil seedlings, the amount of injections must be strictly controlled. The amount of vaccine injected is rather large and insignificant. The volume of the chicken body will be exacerbated by the amount of the assembly, and small amounts will not cause immunity.
7. Effectively grasp the interval of vaccine use. When drinking vaccines, the drinking time should not be less than one hour, nor should it exceed two hours. When drinking water in the hot season in summer, appropriate amount of ice can be added to the water, and the remaining 1/2 vaccine can be consumed after half an hour of drinking 1/2 vaccine.
8. Minimize stress. When inoculating chickens, the bulbs of chicken coops were changed to blue in the evening. Since chickens were blind to blue light, people could see chickens, but chickens couldn't see people and wouldn’t panic.
9. During the inoculation, strengthen the feeding management and keep the air in the house fresh. Do not have thirsty wind and ammonia gas. Appropriate amounts of electrolytes and vitamins, especially Va, Vb and Vc, are added to the water.
10. Do not blindly increase the number of immunizations. Some farmers have panicked about the chicken disease, especially Newcastle disease. The vaccine is vaccinated once every few days, and dead vaccines are used at the same time, disturbing the chicken's immune system.
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