Structure Design of Large-scale Sow House with Fermentation Bed

In this research, the whole contact-type large-scale sow house with fermentation bed was designed. The planning area of the entire piggery was 5 700 m2 with workplace and green belts. The sow house was 93 m long and 33 m wide, a total of 3 069 m2, including office area of 60 m2 and aisle area of 107 m2. The fermentation bed had an area of 2 902 m2 with length of 88.7 m and width of 27.7m. Its area accounted for 95% of the total area of sow house. The fermentation mattress had a depth of 80 cm, and had a volume of 2 321 m3, equivalent to 733 t of coconut chaff and rice chaff. On a large fermentation bed, the areas for boars,replacement gilts, pregnant sows, obstetric tables, nursery pigs, etc. were designed.The large-scale sow house with fermentation bed was equipped with the automatic feeding system, automatic sprinkler system, automatic positioning column for pregnant sows, sows' obstetric table system, fanning wet curtain cooling system, video monitoring system, environmental monitoring(light, temperature, water, humidity,CO2, NH3) and automatic control system. Every farming area was equipped with feeding trough and water trough. The water though was fixed with overflow pipe for removing the extra water. The house could hold 500-head sows. Each sow occupied 4.9 m2 of the fermentation bed in average. The designed sow house had a maximum annual output of 10 000 piglets.