Feeding pigs with raw feed not only saves fuel, manpower, and financial resources, but also increases pig feed intake and promotes weight gain. At the same time, it can reduce feed consumption and increase feed remuneration. But we must pay attention to the method of feeding. 1. Raw feed selection. The feeds that can be used as raw feeds are mainly grass seeds, such as corn, wheat, rice and other processing by-products such as rice bran and wheat bran. After the above-mentioned food feeds were cooked, the loss of nutrients was over 13%, and the feeding effect was equivalent to only 87% of the raw feeds. In addition, green feed should also be fed. When cooked, most proteins and vitamins are destroyed. Leguminous seed real feeds such as soybeans, bean cakes, peanut bran, and soybean dregs contain an anti-trypsin, which can hinder the digestion and absorption of legume proteins by trypsin in pigs. Therefore, these feeds cannot be fed and must be cooked at high temperatures. Feed it again. 2. Pay attention to the way you give birth. Feeding can be divided into wet and dry feeds. The ratio of wet feed to water should not exceed 1:2.5. Otherwise, it will reduce the secretion of digestive juices, reduce the activity of digestive enzymes, and affect the digestion and absorption of feed. The most appropriate ratio Should be 1:1. It is advisable to control the water droplets in the prepared feed. Dry feed is fed in the form of powder, feed, and then feed water, the benefits of dry feed: First, the feed is not easy to degenerate, with a feed for a few days, saving labor. The second is to use a variety of agricultural and sideline products made of dry powder, with the feed, open up a variety of feed sources, can be vigorously promoted. 3. Raw materials should be cleaned and detoxified. Raw food feed pigs should be washed and disinfected so as not to infect parasites. For immersible green feed, it can be immersed in lime water or potassium permanganate solution. The best way is to plant the feed site, not using pig manure or only fermented manure, to prevent contamination of eggs. Rapeseed cakes, cottonseed cakes, fresh cassava, and buckwheat, which contain certain toxins, must generally be crushed, immersed in water, fermented or ensiled, etc., and can be fed only after the toxins have been removed. 4. The raw material should be crushed. Raw material crushed particles with a diameter of 1.2-1.8 mm are appropriate. This type of pig is refreshing, has a large feed intake, and is long and fast. Diameter less than 1 mm, when the pig eats, easy to stick the mouth, affecting palatability. Diameter greater than 2 mm, rough, poor palatability, pigs do not like to eat. 5. Raw green feed should be fed separately. When the pigs are hungry, the secretion of digestive juices is strong. The concentrate feed is rich in nutrients, small in size, with less crude fiber, good palatability, high quality, and easy to digest, so it should be fed first. Such as fine green mixed feed, due to the large volume of green material, more water, reducing the digestibility and utilization of concentrate; and excessive water in the green material diluted the digestive fluid, thereby reducing the digestive function. 6. The amount of raw feed should be appropriate. Raw feeds are fed to pigs, and the amount of feed differs depending on the pig's different growth stages and production performance. Piglets and finishing pigs are allowed to eat freely. Pigs must be quantified; otherwise, fat accumulation due to overfeeding will affect reproduction. Generally, the daily dosage of boar concentrates in the non-breeding period should be controlled at 2-2.5 kg, and the breeding period can be fed to 3-3.5 kg. The amount of confinement for sows during pregnancy is 2–2.5 kg and 5–6 kg for lactation. 7. To supply enough drinking water. Pigs feeding dry materials must supply enough drinking water. Drinking water in winter is 2-3 times that of dry feed, 4 times in spring and autumn, and 5 times in summer. In particular, lactating sows and piglets must not be deficient in water, otherwise they will affect the sow’s milk secretion. The water quality should be clean and the water temperature should be kept cool in winter and cool in summer. 8. Gradually transition when feeding raw meal. When clinker is fed to the raw meal, there must be a transition period. One-third of the material was changed to raw material, 3-5 days later, it was changed to two-thirds, and after 3-5 days it was changed to raw material, otherwise it would affect the intake and weight gain. The amount of raw materials should be controlled in the first few days after being changed into raw materials to prevent indigestion caused by overfeeding. Puyang Linshi Medical Supplies Co., Ltd. , https://www.linshimedical.com