1. Acidification After early weaning of piglets, due to the interruption of lactic acid source, gastric acid secretion is still less, and its digestive function will be seriously affected. At this point, the feed of the weaned piglets should be acidified. 1% to 3% citric acid or lactic acid can be added to piglet drinking water or feed to reduce the pH of the feed to 5, and 0.3% pepsin can be added to the feed to promote digestion. 2. Beating the green and juicy feed into a slurry with a beater, which is convenient for pigs to eat and chew, and also helps the digestive juice and food to mix, thereby reducing the tension of the digestive organs, reducing the energy consumption for digesting feed, and improving Feed utilization. 3. The seed crushed by mechanical crushing or straw, to facilitate digestion and pig feed, facilitate mixing with food digestive, gastrointestinal thereby reducing energy consumption in the process, improve feed utilization. 4. chopped silage through green fodder, silage, so that the feed having an acid, fragrant, juicy characteristics, not only palatable, pigs eat, and organic acid contained can promote the secretion of digestive juice. 5. Saccharification The seed-based feed contains more starch, which can be partially converted into maltose by saccharification, which not only improves the palatability of the feed, but also is easy to digest. The sugared feed can increase the sugar content by 8 to 12 times. The specific method is: the crushed fine material is placed in a barrel or a pot, the thickness is 20 to 30 cm, and then poured into 2 to 2.5 times of hot water of 80 to 90 ° C, and fully stirred into a paste. In order not to cause the feed temperature to drop rapidly, a surface of 5 cm thick dry material can be sprinkled on the surface of the feed, covered with a wooden cover or plastic film to keep the temperature at 55-60 ° C, and fed after 3 hours of saccharification. The storage time is preferably no more than 10 hours. When feeding, the saccharified concentrate is mixed with the green roughage, especially for the fattening pig. 6. Fermentation The fermentation of microorganisms is used to soften the texture of the crude fiber and improve the palatability of the feed. This is a processing and modulation method that has been used in rural areas for a long time in China. Take 50 grams of baking soda, sweet liqueur, seaweed powder, spicy simmer, 3 bags of Liuyi, 5 grams of tea, 250 grams of Guanzhong, Chinese yam, medlar and dried tangerine peel, 500 grams of glucose, mixed separately at the end of the study, and then Add 5 egg whites and 6 kilograms of fine rice bran and mix well. Add water to adjust to the hand and hold it tightly. When the hand is loose (about 65% water content), put it into a container such as a barrel or a cylinder and press it to ferment. The temperature should be controlled at 35 to 40 °C. After 3 days, when the material is yellow and has a strong aroma of sweet liqueur apple, it will become a "medicine strain", and it will be dried in the open and cool place for use. When feeding, it is prepared according to the ratio of 40 parts of roughage powder, 10 parts of wheat bran, 2 parts of bone meal and fish meal, 45 parts of corn, and 1 part of compound feed additive (microelements and vitamins). 150 grams of "medicine" in 50 kg of ingredients, 50 kg of water, and fermented in a container for 24 hours (the same temperature as "medicine"), when a strong liqueur apple aroma is produced. , you can feed. Feed 4 times a day, 2 to 3 kg each time, and feed some green and juicy feed after each meal. Feeding the pig with this kind of fermented feed, the pig likes to eat long, the fur is bright, and it takes only 45 to 60 days to raise 30 kilograms of medium pigs to the market. Welding machine is a device designed to provide an electric current to joint materials, usually metals or thermoplastics, by causing coalescence (most often by melting small parts of them). Powerful welding machines,Welding machines & equipment,high-performance welding machines AWLOP CO.,LTD , https://www.awlop.com