"One pig three-needle" immunization refers to three kinds of vaccines, namely compulsory swine fever, swine foot-and-mouth disease, and highly pathogenic swine blue-ear disease, which are stipulated by the government. Immunization of compulsory immunization species is completed at the same time. The immunization method is a newly promoted pig immunization method based on the pilot test of animal epidemic prevention in the Yunnan Animal Disease Control and Prevention Center and the Baoshan Animal Disease Prevention and Control Center in Changning County, Baoshan City, Yunnan Province this spring. Compared with the traditional method of immunization, this method of immunization saves time and labor, reduces the number of times of stress in pigs, improves vaccine utilization, and has a small side effect of immune response. Pig farmers, especially rural free-range farmers, are easy to accept.
In the past, conventional immunization methods used two or three pigs per quarter per season for immunization. Not only did the immunization workers have large workloads, but farmers also found it difficult to accept them, often resulting in higher first-immune densities and lower densities. Less than expected immune goal. Adopting "one pig three needles" immunization saves manpower and material resources, and greatly improves the passing rate of immune antibodies. According to the Yunnan Province Animal Disease Control and Prevention Center, the use of "one pig three needles" immunization, the antibody pass rate of more than 90%. This method of immunization is applicable to both rural and rural free-range farmers as well as to large-scale farmers. The use of "one pig three needles" for immunization must be carried out in strict accordance with the technical operating procedures. First, the equipment used and the injection site must be strictly sterilized. Second, the vaccines used must be purchased from the regular channels and strictly preserved, transported, and used according to biological product instructions. Third, live pigs must be given Baoding at the time of injection to ensure that a sufficient amount of vaccine is injected into the pig's body. Fourth, it is forbidden to use a syringe to cross-pump a vaccine. Each syringe can only take and inject a vaccine from beginning to end. The fifth is sick, pregnant, young and close to the pigs are not injected. Sixthly, when an allergic reaction occurs individually, epinephrine or dexamethasone must be injected in time. After the injection, reducing or stopping 1 to 2 meals is normal and not having to deal with. After 2 to 3 days of injection, the food does not return to normal. Appropriate use of antibiotics is required. treatment.
Distilled water machine refers to a machine that uses distillation to prepare pure water. Distilled water can be divided into once and multiple times. After the water is distilled once, the non-volatile components are removed in the container, and the volatile components enter the initial fraction of distilled water. Usually, only the middle part of the fraction is collected, accounting for about 60%. To get more pure water, add alkaline potassium permanganate solution to distilled water to remove organic matter and carbon dioxide; add non-volatile acid to make ammonia become non-volatile ammonium salt. Because glass contains a small amount of water-soluble components, it is necessary to use a quartz distillation vessel to obtain very pure water when performing two or more distillations. The obtained pure water should be stored in a quartz or silver container.
working principle
The working principle of the distilled water machine: the production is to boil the source water to evaporate and condense and recover, which consumes a lot of heat energy and the cost is not too low. The other evaporating substances in the source water used to make distilled water will also follow the distilled water. It is formed and condensed into distilled water, such as phenols and benzene compounds that are harmful to health, and even evaporable mercury. To obtain pure water or ultra-pure water, it must be distilled twice or three times and other purification methods must be added.
Water distiller, distilled water machine, water distillation device
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