The temperature in spring is high and low, and the temperature difference between day and night is relatively large. Breeders should pay attention to ventilation and heat preservation when raising pigs in the spring. 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 insulation condition of the delivery room piglets and nursery pigs, 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 vents in the roof of the greenhouse. Hebei Abiding Co.Ltd, a professional food supplier, was established in 2005 in Shijiazhuang, China. We specialize ourselves in supplying Organic Tomato Paste and organic pastas. Conventional ones are also available to supply. We can make the private labels according to the customers' requirement. Our products have EU, NOP and JAS organic certificates. They are also Kosher certified. We have business relationships with importers and wholesalers from around the world, mainly in Europe and America. Over the years, we have earned highly recognition from clients due to our qualified service and steadily increase our market share year after year. Fresh Pasta,Tasty Regular Pasta,Delicious Regular Pasta,Delicious Fresh Pasta Hebei Abiding Co.Ltd , https://www.hebeiabiding.com