Will classical swine fever infect cattle and sheep?

Classical swine fever does not infect cattle and sheep under natural conditions. However, pigs and wild boars of different ages, genders and breeds are susceptible and can occur all the year round. So what are its symptoms? How to carry out prevention and control?

What are the symptoms of classical swine fever?

1. Acute

There are varying degrees of bleeding in the skin, serosa, mucosa and internal organs of the whole body. The whole body lymph nodes are swollen, juicy, congested, bleeding, the appearance is purplish black, the section is like marble, the kidney is light, the cortex has needle tip to millet-shaped bleeding spot, spleen has cold obstruction, the edge is more common, showing black and small purple mass, larynx mucosa and tonsil bleeding. There are scattered bleeding spots in the bladder mucosa. Gastric and intestinal mucosa showed catarrhal inflammation. A button ulcer is formed at the ileocecal valve of the large intestine.

two。 Chronic

There was no obvious change in necrotizing enteritis and systemic hemorrhage. due to the disturbance of calcium and phosphorus metabolism, the yellow ossification line formed by ossification disorder could be seen at the end of ribs and cartilage tissue in weaned pigs.

3. Mild

The pathological changes were not obvious, the body temperature was about 40 ℃ in the long course of the disease, there was no bleeding in the skin, but there were congestion and necrosis, appetite was good and bad, feces were sometimes dry and thin, and the diseased pigs were very thin.

How to prevent and cure classical swine fever?

1. Self-breeding should be carried out, and pig seedlings should not be introduced from other places as much as possible. when breeding pigs are introduced from other places, they should go to disease-free areas for vaccination and quarantine for 2 or 3 weeks after arriving at the scene.

two。 When using leftover soup as feed, it should be boiled and fed, and feeding management should be strengthened to ensure adequate nutrition and improve the resistance of pigs.

3. Pig farms should do regular sanitary work, disinfect regularly, and prohibit non-workers and other animals from entering.

4. In accordance with the provisions of the State, the trading, transportation, slaughtering and import of pigs shall be strictly quarantined; vaccination shall be carried out.