1. Fences should be used around the pig farm, and the entrance should be clearly visible. The fence should be made of strong and durable materials, which will reduce the chance of unauthorized people and animals entering the pig farm.
2. The road surface is clean, establish regulations, and try to avoid foreign transport vehicles from entering the pig farm. If this is not possible, disinfection basins should be installed at the entrance to prevent diseases from being brought into the farm. The impact of the spread of the disease can be minimized by taking the necessary precautions.


3. Ventilation, in order to prevent birds and larger insects from entering, the air outlet must be covered with a net. The air outlet is often the weak link in the pig house, and it should be checked frequently to ensure air circulation.
4. Try to clean up the manures in a hygienic way, and it is best to store the manures in a centralized manner so that they can be emptied through sewage discharge measures