Summer swine fermentation bed has requirements

The area of ​​a single pig house should not be less than 15 square meters, preferably more than 20 square meters, and the area of ​​the sow house should not be less than 7-8 square meters. Generally speaking, where the cost of land and infrastructure can be tolerated, the larger the area occupied by each pig, the better, because the larger the area, the stronger the buffering and tolerance of the fermentation bed (ie the resistance to stress) is. .

Density requirements

Fermentation beds also have requirements for the culture density. For finishing pigs, each pig requires 1.2 to 1.5 square meters. Above this density, the fermentation bed may be overloaded, resulting in undesirable phenomena such as excessive fermentation and the termination of fermentation. The bigger the pig's head and body weight, the more necessary it is to provide more area. Because the capacity of microorganisms per unit volume to handle feces is limited, if each pig excretes 3 to 5 kg of feces every day, it takes about 1.2 to 1.5 square meters (depth of 50 cm) of microorganisms to degrade for 1 day to complete. . If each pig occupies only 1 square meter, then there will be excess feces left every day, resulting in incomplete or untimely decomposition, and as the pig grows bigger, the amount of excreted urine will increase every day. The long-term accumulation of excessive excreta will cause abnormal disorder in the fermentation bed system and cause serious crashes.

Ventilation requirements

The fermentation bed requires that the pens be transparent to the north and south, and the ventilation is smooth. Therefore, ventilation and light must be taken into account in the construction of the pig house. Therefore, the fermentation bed must have a certain span and height, and the span requirement is generally not less than 8 meters. Designed for 8 to 12 meters, the height of the pig house should not be less than 2.6 meters (refers to the height of the bed surface from the roof), the length can be adapted to the local conditions, and ventilation should be provided every 3 meters or so. In this way, air in the pens can easily form convection and achieve good ventilation and ventilation effects.

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