Overhauling pig houses in winter invading pigs in a pig house can cause pig colds and pneumonia. Therefore, the piggery should be built on the terrain of high dryness, sunny place, timely repair of the roof and the gap between the four walls, windows and ventilation holes should be more than 1 to 1.5 meters above the ground in order to maintain a relatively stable temperature. The doors and windows of the hanging straw pig house can be covered with straw curtains, or the entire doors and windows can be covered with plastic sheets to keep warm and cold. Straw should also be used to form a windbreak wall or windrows in the northwest outside the northern wall of the pig house to prevent the northwest wind from invading. Take the plastic shed plastic shed light temperature, can increase the temperature around 7 °C. Farmers can disperse pigs according to local conditions. There are arched, ridged, umbrella or single-slope sunny plastic sheds above the sheds, and an active ventilation window is reserved on the south side for temperature and ventilation purposes. Grass bed The 15 cm thick corn leaf or other hay is spread on the bed of the pig, which can absorb moisture, remove moisture, absorb harmful gas, and increase the temperature of the pig bed. In addition, 10 cm thick sawdust can be placed in the pigsty and the starter can be added. After several days, the fermentation starts. The temperature can reach 35°C, keeping the pig house warm. Warm nest to sleep and dig a 50cm deep flat earth pit, spread a layer of soft grass, and then cover the straw, so that the piglets in the heating; also can build a straw shed, which piles soft hay, let the pig drill to sleep inside to keep warm . The height of the enclosed pig house ceiling with insulation layer should be 1.8 to 2 meters from the ground. Sawdust or chaff must be added to the shed to lay the soft grass on the ground for the pig to lie down. A ventilation hole should be left every two days in the ceiling to remove ammonia and moisture from the house. Careful feeding of energy feeds such as sorghum and corn should be appropriate when feeding the formulated diet. After the feed is fed after fermentation, the amount of feed should be sufficient and warm water should be used. The night food is fed once a day or so at zero hour to enhance the body's ability to resist cold and disease and promote rapid growth. Adding traditional Chinese medicine can add traditional Chinese medicine that promotes blood stasis, spleen dampness, dispelling wind and dispelling cold in the feed. The prescriptions are: Chuanxiong, licorice, Nepeta, windproof, Bairen 60g each, malt 30g, hawthorn, herb, orange peel, betel nut, 10g each of Divine Comedy, 8g of wood, and a small amount of feed after the powder in the morning, once in the morning After feeding, feed once a week. Increasing density In winter and early spring, the number of pigs in the house can be increased by 1/3 to 1/2 in comparison with usual. The pigs have more heat and can increase the temperature. Pigs should be allowed to enter the new pigs at dark, and spray the pigs at a low concentration of alcohol or odor before merging. Keeping the humidity in the dry barn increases, the pigs feel colder and can easily cause skin diseases, respiratory diseases, infectious diseases, and parasitic diseases. In addition to keeping the floor mats and diligently changing the hay, the pens should also let the pigs develop the habit of defecate urine at fixed points, keep the pig's bed clean and dry, and provide them with a comfortable living environment to promote growth and development. health.
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