1. Keep more than 3000m away from residential areas, more than 2000m away from national highways, and more than 1000m away from provincial highways.

2.The slope ratio of the site should be 15-20°and 15° to the southeast. the air is fresh, the circulation is smooth, the terrain is dry, and there is no stagnant water.

3. In the downwind direction of residential areas, it is advisable to make an included angle of 30° in the dominant wind direction in summer.

4. There are good traffic conditions, sufficient water sources, water quality, electricity, feed, and security.

5. There are no breeding grounds and no slaughtering plants around. There is no source of pollution.

6. There are supporting sewage destinations, (including farmland, greenhouses, vegetable bases, and woodlands)

7.To achieve three-point type, (breeding area, nursy area, grower area,) Do a good job in biological epidemic prevention and safety.

8.Pay attention to sewage treatment, be pollution-free, low-carbon, green, and environmentally friendly. Sewage and feces can be effectively recycled. meet environmental protection standards.