The typical symptoms of classical swine fever are fever, body temperature as high as 40-42℃, skin redness, bleeding of lymph nodes, kidneys and gastroin
The typical symptoms of classical swine fever are fever, body temperature as high as 40-42℃, skin redness, bleeding of lymph nodes, kidneys and gastrointestinal mucosa, serous or mucinous purulent secretions in eyes and nose, cough, dyspnea and other symptoms. After the occurrence of classical swine fever, it should be cleaned up in time to reduce the virus. Pigs with low immunity are prone to get sick, so they should be vaccinated in time and disinfected with alkali or poison.
First, the typical symptoms of classical swine fever
1. The typical symptoms of classical swine fever are fever, body temperature as high as 40-42℃, listlessness, conjunctival flushing, congestion, skin redness, body surface bleeding, blood stasis, especially in the lower abdomen, limbs, buttocks, perineum and other parts, lymph nodes, kidneys, gastrointestinal mucosal bleeding, cough, wheezing, dyspnea, and serous or mucinous eyes and nose.
2. Sows will also be accompanied by abortion, infertility and stillbirth. When dissecting a dead pig, it will be found that the organs such as liver, spleen, lung and lymph nodes are swollen seriously, with massive bleeding and congestion. The mortality rate of this disease is very high in acute stage, especially for sows and big pigs.
Second, how to prevent and control swine fever
1, after the occurrence of classical swine fever, it is necessary to clean it up in time to reduce the virus. Pigs with low immunity are prone to get sick, so they should be vaccinated in time and disinfected with alkali or poison.
2. Don't let outsiders or pigs outside enter the clean pigsty. Cars must be disinfected when they enter pig farms. You can't feed pigs with swill, which is easy to carry viruses. Don't raise pigs carelessly. Wild boar or external bugs can make pigs sick. Observe the situation of pigs at any time. If there is high fever, diarrhea, vomiting, redness, etc., it is necessary to isolate and deal with it as soon as possible to reduce losses.
3. Regular vaccination: In spring and autumn every year, weaned piglets and newly purchased pigs should be vaccinated in time except adult pigs. Newly purchased pigs should be observed in isolation for 30 days to confirm that they are disease-free, and they can only be bred after being injected with swine fever vaccine. Classical swine fever often occurs in epidemic areas. Piglets are injected once at the age of 0-30 days after birth, and weaned at the age of 55-60 days.