Technology of raising pigs in fermentation bed

Fermentation bed pig raising technology is a new environmental protection pig raising technology, which can solve the pressure of pig industry on the environment, not only reduce environmental pollution without increasing investment, but also reduce labor intensity, cultivate healthy and disease-free pigs, and significantly improve economic benefits.

Pig house construction: the pig house raised in the fermentation bed can be slightly modified on the basis of the original pig house, or a greenhouse can be used. It is generally required that the pigsty should move from east to west, sit north and south, fully daylighting, good ventilation and open north and south. Usually each pigsty has a net area of 25 square meters and can raise 15-20 pigs. The wall of the pig house is 3 meters high, and the ridge of the roof is 4.5 meters high. there are windows that can be opened and closed freely in the middle of the roof facing the south. the sun can shine on 1 inch of the whole pig bed area, which requires that the sun can shine on every corner of the whole pig bed in one day. An automatic feeding trough is built on the north side and an automatic drinking fountain is installed on the south side.

Fermentation bed preparation: fermentation bed is divided into underground fermentation bed and above-ground fermentation bed. In the south, the groundwater level is higher, generally using the above-ground fermentation bed, and the above-ground fermentation bed is built on the ground, which requires a certain depth, and then fill in the organic cushion that has been made; in the north, the groundwater level is low, and the underground fermentation bed is generally used. The underground fermentation bed is required to dig 90-100 cm below the ground to fill the organic cushion made.

Cushion production: the fermentation bed is mainly composed of organic bedding, which is mainly composed of sawdust, accounting for 90%, and the other 10% is soil and a small amount of crude salt. The total thickness of the piggery is about 90cm, which requires about 150kg of bedding per square metre. For example, a piggery with an area of 25 square metres needs about 3750 kg of padding. Good conditions can first lay 30-40 cm deep wood, and then covered with sawdust, if sawdust is insufficient, you can first spread 50 cm deep corn straw or 30 cm thick rice husk, and then cover with sawdust. The amount of soil is about 10% of the total material, about 415kg, and the requirement is clean soil that has not used chemical fertilizers and pesticides; salt is 0.3% of the total material, about 12 kg; microbial species use 2 kg per square meter, a pig house uses 50 kg; water 1000 kg; active agent (Tianhui green juice, lactic acid bacteria, animal amino acid, rice vinegar, etc.) 8 kg.

The original species of microorganisms, rice bran and sawdust are mixed in a certain proportion, and a certain amount of Tianhui green juice and amino acid liquid are added to make the water content reach 60% to ensure the mass reproduction of beneficial bacteria. It is also ideal to add a small amount of distiller's grains, husk coke, husk and other fermentation. The organic bedding material for fermentation bed can be made after 2-4 days of fermentation. The fermentation mattress material can be used for more than 10 years.

After laying the sawdust, soil and microorganism layer by layer, spray salt water and nutrient solution, adjust the moisture to 65%, spray water should start after filling material 50%, fill the cushion material in this order. After 2-3 months of feeding, the bottom of the pig bed became a natural reproductive state, and white bacteria were formed in the middle, and its temperature could reach 40-50 ℃. Pig manure became pig feed after fermentation.

Fermentation bed management: generally speaking, it is similar to the daily management of conventional pig farming, but the fermentation bed has its own unique place, so the usual management is also different: the feeding density of ⑴ pigs. Generally speaking, it is appropriate for each pig to cover an area of 1.2-1.5 square meters, and the feeding density of piglets can be increased appropriately. The surface of the ⑵ fermentation bed should not be too dry, a certain humidity is conducive to microbial reproduction, if too dry may also lead to respiratory diseases in pigs, active agents can be sprayed on the bed regularly. ⑶ pigs should first thoroughly remove parasites from the body to prevent parasites from being brought into the fermentation bed, so as to prevent pigs from bringing eggs into the body again when gnawing on mycelium. ⑷ pays close attention to the activity of biological bacteria and adjusts the activity of biological bacteria if necessary to ensure that the fermentation can be carried out normally. When the sawdust in the ⑸ pigsty becomes less, the original species of microorganisms and nutrient solution should be supplemented properly. In order to facilitate the pig arch to turn over the ground, the feed feeding amount of the pig should be controlled at 80% of the normal amount. Pigs usually defecate and urinate in a fixed place, and dig holes and bury them when feces and urine are piled up. The ground humidity of ⑺ must be controlled at about 60%. If there is too much moisture, you should open the vent to adjust the humidity. The use of chemicals and antibiotics is prohibited in ⑻ piggery to prevent the killing and inhibition of biological bacteria and reduce the activity of biological bacteria.