Divided into single conservation field (Specification 1.8 * 2.1m), double conservation field (Specification 2.1 * 3.6m), Siamese conservation field. Piglets for breeding, it can provide a clean, dry environment for piglets. Can improve the survival rate. By using proven conservation field than concrete rearing piglets feeding an average of 15% weight gain, feed efficiency 8-14% survival rate can reach 95%. Gao Pei conservation field description: High conservation field product training sow dung floor drain \ beamed \ vertical beams and legs are made of ductile iron casting, high acid \ strength \ long life; piglets and pouring the floor with plastic once as anti-aging \ high strength; Tianjin Hao Feng fence using hot dip tube welded high conservation field product training fecal leakage sow floor, beams, vertical beams and legs are made of ductile iron casting, acid and alkali, high strength long service life; piglets floor using a cast made of plastic, anti-aging, high strength; Tianjin Hao Feng fence using hot dip tube welded, corrosion resistance, long life. Their lying area and defecation area separated by walls, and equipped with doors opening and closing activities.