Pigs are omnivorous animals and need to eat a variety of feeds, after digestion, absorption of nutrients, waste excretion, in order to achieve the purpose of long-billed. When feeding pigs with a mixture of dry and wet foods with low water content, it must secrete more than four to five times more saliva than the clinker, and it takes longer to chew until it is swallowed, plus the dry material it eats. The volume is small, accounting for only 70% of the stomach capacity of the pig. This kind of stomach has strong mechanical properties, strong friction, and helps the decomposition of nutrients; in addition, the feed stays in the digestive system for a little longer, prolongs the chance of absorption, so that pigs can absorb more from the feed. nutrition. Under the same conditions, the feed remuneration for wet and dry feeds is higher than that for thin feeds or cooked feeds, and the long-term feed rate is also increased accordingly, and the use value for rough feeds is also relatively high. Wet and dry feeding can overcome the fatigue of labor and fuel consumption, especially the damage of various vitamins when green feed is cooked, and even cause the disadvantages of nitrite poisoning. The method for feeding raw and dried wet and mixed pigs is to mix the crushed dry fine roughage uniformly, add the appropriate amount of water, feed the pig directly, and then supplement the green feed. Feeding pigs using this method should pay attention to the following issues: (1) When the raw materials are mixed and fed to pigs, there must be a gradual adaptation process, that is, feed 1/3 raw materials at the beginning, and feed 2/3 raw materials after a few days. The feed is fed with raw meal in a few days. (2) Some feeds, such as dried potato vines and taro leaves, must be cooked and then fed. (3) There should be a drinking fountain in the column to keep drinking water uninterrupted. (4) After feeding raw materials, routinely use drugs such as trichlorfon to drive off the parasites in the body to ensure the healthy growth of the pigs. A pig farmer in Maba Town, Qujiang County, uses the same feed and feeds both separately and boiled to feed two groups. The result is that pigs gain 12% more weight and 1 kg each time than raw pigs. Concentrate 0.2 to 0.4 kg; fat pig weight gain 3.5%, each weight gain 1 kg can save 0.23 kg fine material. Other indicators such as piglet birth weight, sow's lactation force and weaning weight of piglets, etc., have different degrees of improvement in raw and fed than in cooked feeding. China Agricultural Network Editor
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