The choice of raw feeds The feeds that can be selected for raw feed are mainly the seeds of Gramineae, such as corn, wheat, rice, and their byproducts such as glutinous rice bran, wheat bran, and corn flour. After the above-mentioned feed was cooked, the loss of nutrients was over 13%, and the feeding effect was only equivalent to 87% of the raw feed. In addition, green feeds should also be fed, and most protein and vitamins are cooked and destroyed. However, the feed of legumes, such as soybeans, bean cakes, peanut cakes, and bean dregs, contains an anti-trypsin that can block the decomposition of legume proteins by trypsin in pigs. Therefore, these feeds cannot be fed and must be fed after high temperature treatment.
The choice of raw feeding method can be divided into wet feeding and dry feeding. The ratio of wet feeding material to water must not exceed 1:2.5. Otherwise, it will reduce the secretion of digestive juice, reduce the activity of digestive enzymes, and affect the digestion of feed. Absorption, the most appropriate ratio should be about 1:1. It is advisable to mix the feed in order to be able to squeeze the water droplets; the dry feed is fed in the form of a powder, first feed the dry feed and then feed the water. The advantage of dry feeding is that the feed is not easy to degenerate, and it can be fed for a few days with one time, which saves labor and facilitates the production of compound feed for pigs.
Raw material feeding pigs should disinfect the raw feeds. Pigs should be washed and disinfected to avoid infection with parasites. The method of disinfection can be soaked with lime water or potassium permanganate solution. The best way is to plant the feed without the use of pig manure or manure without fermentation, in order to prevent eggs and bacteria contamination. Rapeseed cakes, cotton seed cakes, fresh cassava, buckwheat, etc., containing certain toxins, must generally be sterilized, soaked, fermented, or silaged to be detoxified before being fed.
The raw material should be crushed with moderate raw material crushed particles with a diameter of 1.2 mm to 1.8 mm. This type of pig is refreshing, has a large feed intake, and is long and fast; the diameter is less than 1 mm, and the pig easily sticks when eating. Affect palatability, and easily lead to gastric ulcer; diameter greater than 2 mm, rough, poor palatability, pigs do not like feeding, affecting the normal growth of pigs.
The amount of raw material should be reasonably fed to pigs, and the amount of feed differs depending on the pig's different growth stages and production performance. Pigs and fattening pigs can be allowed to feed freely, and breeding pigs, especially if they can breed sows, otherwise, they must be supplied in a quantitative manner. Otherwise, due to overfeeding, they cause fat deposition and affect reproduction. Generally, the daily dosage of boar concentrates in the non-matching period is controlled between 2 kg and 2.5 kg, and it can be fed between 3 kg and 3.5 kg during the breeding period. For pregnant sows, the amount of concentrate is 2 kg to 2.5 kg, and the lactation period is 5 kg to 6 kg.
The digestive juice is most prosperous when the raw material is fed separately to feed the pigs when they are hungry. The concentrate feed is rich in nutrients, small in size, with less crude fiber, good palatability, and easy to digest, so it should be fed first.
Pigs that supply enough water to dry feed must supply enough water. Drinking water in winter is generally 2 to 3 times of dry feed, 4 times in spring and autumn, and 5 times in summer. In particular, lactating sows and sows should not be deficient in water, otherwise they will affect the sow's milk secretion. The water quality should be clean and free of pollution, and the water temperature should be kept cool in winter and cool in summer.
When the raw material is gradually transferred and fed from the clinker to the raw material, there must be a transitional period, and 1/3 of the food is first fed to the raw material. Change from 3 days to 5 days to 2/3. Only after 3 days to 5 days change all the raw materials. Otherwise it will affect the pig's feeding and weight gain. The amount of raw meal should be controlled a few days after the raw meal is fed to prevent indigestion such as indigestion caused by overfeeding.
The choice of raw feeding method can be divided into wet feeding and dry feeding. The ratio of wet feeding material to water must not exceed 1:2.5. Otherwise, it will reduce the secretion of digestive juice, reduce the activity of digestive enzymes, and affect the digestion of feed. Absorption, the most appropriate ratio should be about 1:1. It is advisable to mix the feed in order to be able to squeeze the water droplets; the dry feed is fed in the form of a powder, first feed the dry feed and then feed the water. The advantage of dry feeding is that the feed is not easy to degenerate, and it can be fed for a few days with one time, which saves labor and facilitates the production of compound feed for pigs.
Raw material feeding pigs should disinfect the raw feeds. Pigs should be washed and disinfected to avoid infection with parasites. The method of disinfection can be soaked with lime water or potassium permanganate solution. The best way is to plant the feed without the use of pig manure or manure without fermentation, in order to prevent eggs and bacteria contamination. Rapeseed cakes, cotton seed cakes, fresh cassava, buckwheat, etc., containing certain toxins, must generally be sterilized, soaked, fermented, or silaged to be detoxified before being fed.
The raw material should be crushed with moderate raw material crushed particles with a diameter of 1.2 mm to 1.8 mm. This type of pig is refreshing, has a large feed intake, and is long and fast; the diameter is less than 1 mm, and the pig easily sticks when eating. Affect palatability, and easily lead to gastric ulcer; diameter greater than 2 mm, rough, poor palatability, pigs do not like feeding, affecting the normal growth of pigs.
The amount of raw material should be reasonably fed to pigs, and the amount of feed differs depending on the pig's different growth stages and production performance. Pigs and fattening pigs can be allowed to feed freely, and breeding pigs, especially if they can breed sows, otherwise, they must be supplied in a quantitative manner. Otherwise, due to overfeeding, they cause fat deposition and affect reproduction. Generally, the daily dosage of boar concentrates in the non-matching period is controlled between 2 kg and 2.5 kg, and it can be fed between 3 kg and 3.5 kg during the breeding period. For pregnant sows, the amount of concentrate is 2 kg to 2.5 kg, and the lactation period is 5 kg to 6 kg.
The digestive juice is most prosperous when the raw material is fed separately to feed the pigs when they are hungry. The concentrate feed is rich in nutrients, small in size, with less crude fiber, good palatability, and easy to digest, so it should be fed first.
Pigs that supply enough water to dry feed must supply enough water. Drinking water in winter is generally 2 to 3 times of dry feed, 4 times in spring and autumn, and 5 times in summer. In particular, lactating sows and sows should not be deficient in water, otherwise they will affect the sow's milk secretion. The water quality should be clean and free of pollution, and the water temperature should be kept cool in winter and cool in summer.
When the raw material is gradually transferred and fed from the clinker to the raw material, there must be a transitional period, and 1/3 of the food is first fed to the raw material. Change from 3 days to 5 days to 2/3. Only after 3 days to 5 days change all the raw materials. Otherwise it will affect the pig's feeding and weight gain. The amount of raw meal should be controlled a few days after the raw meal is fed to prevent indigestion such as indigestion caused by overfeeding.
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