A large-scale pig farm should at least include production area, production capture area and management living area. The production area includes all kinds of pig houses, disinfection rooms (changing clothes, bathing and disinfection), disinfection pools, pharmacies, veterinary rooms, treatment rooms for sick and dead pigs, pig outlets, maintenance warehouses, duty rooms, isolation rooms and manure treatment rooms. Production and capture areas include feed mills and warehouses, water towers, wells, boiler rooms, substations, garages, slaughtering and processing plants and repair shops. The management and living quarters include offices, canteens, staff quarters, etc.

(1) All areas in the pig farm should be reasonably arranged: the living quarters should be arranged in the upwind direction of other areas; The auxiliary production area is arranged in the windward direction of the production area; In the production area, the breeding pig house and piglet house should be arranged in the upwind direction of the fat pig house, the male pig house in the upwind direction of the sow house and the isolation area in the downwind direction. The same is true in the layout of the terrain.

(2) Select the orientation of the pigsty. This is related to the effect of ventilation, lighting and sewage discharge in piggery, and should be considered comprehensively according to the local dominant wind direction and sunshine. According to the calculation, the best orientation of piggery in Shenyang is between 20 south and east, not between northeast and northwest.

(3) The building should be neat and compact. The spacing between piggery buildings should not only consider the convenience of work, but also consider the requirements of fire prevention, lighting, ventilation and sanitation and epidemic prevention. It is generally 3-5 times the height of the eaves of the pigsty.