The childbirth bed is a kind of monomer bar, is the sow delivery place of feeding. The middle of the broiler bed is a sow limiter, where the sow is given birth and the piglets are breastfeeding, and both sides are places where piglets feed, drink, warm and move. Sow limiters are generally made of round steel pipe and aluminum alloy, the rear part of the installation of loose floor to remove feces and dirt, both sides of the piglet activity column, used to isolate piglets. The size of the broiler bed is related to the size of the sow species selected by the pig farm, which is generally 2.2-2.3m long and 1.7-2.0m wide. The sow has a limit of 0.6 ~ 0.65m and 0.6m and 1m Fence, ground height of 30cm, and every 30cm welding a solitary feet. Bedding can be used in different materials and structural forms: (1) the use of solid concrete floor, the ground from front to back after 3% slope, easy drainage. (2) the use of part of the metal floor of the floor that is the second half of the ground floor metal leakage dung floor, the following for the ditch, the first part of the solid concrete floor. (3) the use of all-metal fecal floor, that is, all the ground floor for the metal fecal floor, the following for the ditch. Pig water leakage when drinking water, rinse the circle of water and pig feces into the ditch, the bed will not damp water, easy management. (4) the use of semi-metallic structure of the delivery column, that is, sow limit area using metal bar, and pig activity area using concrete structure fence, or brick wall outside the cement mortar structure, which can save metal materials and reduce costs. (5) metal structure of the delivery bed, the external fence all with brick walls, sow trough is a cement structure, only sow limit area fence for the metal structure.