Core Tip: Spring temperatures are high and low, and there is a large temperature difference between day and night. With the gradual recovery of temperature, various pathogens breed and become active. Farmers should pay attention to the following points when raising pigs in the spring. Ventilation and insulation 1. In the event of cooling or rainy windy weather, the pig house should be quickly warmed and grass be raised. 2, to achieve the "Spring Festival", straw, plastic film, stoves and other insulation facilities can not withdraw prematurely. Hang curtains at any time to check the loopholes and prevent the intrusion of thieves. 3, pay attention to the production of pigs and nursery pigs insulation, especially the effective temperature of the abdomen. 4, the temperature difference between day and night in the northern region is large, we must adhere to the night patrol system, according to the status of the pig at any time to regulate the temperature of the housing. 5. Closed-type pig houses shall be provided with vents at 1 meter from the ground. Daily excrement and ventilation shall be conducted at 1 to 3 o'clock in the afternoon when the temperature is high; the straw vents shall be covered at the roof of the greenhouse in the greenhouse. Pighouse disinfection inside and outside 1. Thoroughly remove the weeds and silt around the pig dwellings and the dung ditch to prevent the growth of pathogens and mosquitoes. 2. There is a disinfection pool at the entrance of the pig farm. Disinfect the pots at the entrance of each pig house. Add 2% to 3% of fire lye or 3% to 5% of Surwater; the personnel must be sterilized every 2 days to 3 days. Add a disinfectant once. 3. Thoroughly clean the door, window, ceiling, wall, pigshed and other health corners inside and outside the pig house, then spray with 2% to 3% of fire alkali. 4. Thoroughly clean the pig feed trough, tray, incubator, etc., and then use 3% to 5% to sterilize the liquid and rinse with water to dry. 5. Foreign personnel and vehicles are prohibited from entering the farms, especially live pigs and sick pigs as well as acquisitions of personnel and vehicles. 6. The breeder should wear special shoes and clothes and be strictly sterilized before entering the pig house. 7. Pighouses and pigs advocate the use of 1:500 to 1:1000 peracetic acid fumigation to reduce the concentration of harmful gases. De-worming pigs 1. Select broad-spectrum and highly effective anthelmintic drugs for ivermectin plus fenofenazole. 2, in the pig to the insects at the same time to promptly remove the feces and the ground spraying pesticides to avoid parasite secondary infection. 3, to do a worm worm disease alone. Strengthen nutrition and improve herd resistance 1, can not use cheap low-quality feed, otherwise it will lead to pig malnutrition, poor growth, and easy to disease. 2. Pig farmers using self-ingredients must strictly control the quality of raw materials, in particular, do not use excessive moisture and moldy corn. It is recommended that corn be sieved prior to use to remove impurities. 3. Don't change low-quality raw materials or formulate feeds according to the formula without the low pork price. 4, the spring temperature gradually warmer, we must pay attention to feed "three defenses", that is, rain, moisture, mold, from the source to control the damage of mycotoxins. 5, lack of green feed in early spring, promote the amount of sows to match the green and juicy feed, such as cabbage leaves, carrots and so on. 6. Appropriate amount of Chinese herbal medicine and living seasonings are added to the feed in order to restore the body's health. It is beneficial to the growth of pigs and can prevent and cure diseases. Such as honeysuckle, ginger, green onions, garlic, vinegar and so on. 7, in the feed regularly add micro-ecological products, such as probiotics, yeast polysaccharides and other conditioning gastrointestinal tract, improve the gastrointestinal function of pigs, prevention and treatment of various diarrheal diseases. 2019-Ncov Saliva Antigen Rapid Test Kit,2019-Ncov Antigen Test Kit (Colloidal Gold Method),2019 Ncov S-Rbd Neutralizing Antibody,Influenza A,B Virus Guangdong Hecin Scientific, Inc. , https://www.hecinscientific.com