Swine enzootic pneumonia is a common disease of pigs in the process of pig raising, which will seriously affect the development of pig production and pig raising industry.

With the rapid development of the pig industry, the number of live pigs has increased significantly, resulting in large and concentrated excretion.

African swine fever (ASF) is still the main disease restricting the development of swine industry in China.

Ascariosis of swine is a parasitic disease caused by ascariasis in the small intestine of pigs. It is a common parasitic disease with wide distribution and great harm.

With the continuous expansion of pig breeding scale, the causes of live pig viral immunosuppressive disease are also increasing, and the cases of mixed, concurrent or secondary diseases in the breeding process are increasing year by year.

Pork is a product with high market demand in China, so it is of great significance to do a good job in the inspection and quarantine of slaughtering.

With the continuous transformation and upgrading of pig breeding to the intensive and large-scale direction, pig breeding has become an important pillar industry in the development of China's animal husbandry. In the large-scale pig breeding, piglets are the most important group in the batch production.

The environment and temperature and humidity of pig house are important factors affecting the production performance of sows.