Vaccination with swine fever vaccine is the most effective measure to prevent swine fever, but improper immunization will affect the preventive effect and even cause death in pigs. The following five inappropriate vaccinations should be avoided in production.
1, avoid repeated injections
The swine fever vaccine is a virus with weak pathogenicity. After the pig is vaccinated with the swine fever vaccine, antibodies are formed in the body and maintained for more than one year. If the swine fever vaccine is repeated in a short period of time, the antibodies in the pigs will be neutralized with the injected virus, which will reduce the immunity of the pigs and easily infect piglets.
2, avoid premature injection
Newborn piglets can obtain maternal antibodies from milk. At this time, injection of swine fever vaccine will eliminate the effect of maternal antibodies and make piglets susceptible to swine fever. It is better to vaccinate piglets in piglets 40 to 45 days old.
3, avoid pregnant pigs vaccination
Injecting a swine fever vaccine during pregnancy or at the time of delivery can cause stillbirth, miscarriage or premature birth. If necessary, the swine vaccination can be given before or after the sow is pregnant.
4, avoid injection failure seedlings
The swine fever vaccine will deteriorate after being exposed to high temperature for a long time. The vaccine should be injected promptly after the purchase.
5, avoid changing needles
When some farmers give pigs a shot of swine fever, a needle is injected into the end, which is very likely to cause mutual infection of pig diseases. Must adhere to 1 needle and 1 pig, and do the disinfection of injection equipment.
Active Pharmaceutical Ingredients
Active Pharmaceutical Ingredients(API) refer to the raw materials used in the production of various preparations. They are the effective ingredients in the preparations. They are various powders, crystals, extracts, etc., prepared by chemical synthesis, plant extraction or biotechnology, but Substances that the patient cannot take directly. API is intended to be used in any substance or mixture of substances in the manufacture of pharmaceuticals, and when used in pharmaceuticals, it becomes an active ingredient of the pharmaceuticals. Such substances have pharmacological activity or other direct effects in the diagnosis, treatment, symptom relief, treatment or prevention of diseases, or can affect the function or structure of the body. According to its source, active pharmaceutical ingredients are divided into two categories: synthetic chemical active Pharmaceutical ingredients and natural chemical active Pharmaceutical ingredients.
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