Acidification
After early weaning of piglets, due to the interruption of lactic acid source, gastric acid secretion is still less, which seriously affects digestion. The feed of weaned piglets should be acidified. The pH of the feed can be reduced to 5 by adding 1% to 3% of citric acid or lactic acid to the piglet's drinking water or feed. It is also possible to add 0.3% pepsin to the feed to promote digestion.
Fermentation
Take 50 grams of baking soda, sweet liqueur, seaweed powder, spicy simmer, 3 bags of Liuyi, 5 grams of tea, 500 grams of 250 grams of glucose, Guanzhong, Chinese yam, medlar and dried tangerine peel. Mix separately at the end of the study, add 5 egg whites, 6 kg of rice bran and mix well. Add water to adjust to the hand and hold it tightly. When it is loose and loose (water content is about 65%), put it into a container such as a barrel or a cylinder. Tight fermentation. The temperature should be controlled at 35~40 °C. Winter temperatures are low and plastic films and other insulation are required. After about 3 days, when the material is yellow and has a strong scent of sweet liqueur apple, it is a self-made medicinal koji, open and open in the shade and dry. When feeding, according to the ratio of 40 parts of roughage powder, 10 parts of wheat bran, 2 parts of bone meal, 2 parts of fish meal, 45 parts of corn, and 1 bag of compound feed additive (trace element), 150 grams of medicine is mixed into every 50 kg of feed. Add 50 kg of water to reconcile, the temperature and humidity are the same as those of the pharmaceutical strain. Then, the feed is placed in a container and fermented for 24 hours, and when the aroma of the strong liqueur apple is produced, it can be fed. 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 fermented feed, the pig likes to eat long, the fur is bright, and the growth is fast.
Change the
The crude fiber feeds, such as shells, leaves and straw powder, which are difficult to digest and have poor taste, can be softened and scented after being changed into a bad taste, which greatly improves the palatability and makes the pigs love to eat. The method is: first put the raw material into the tank or the pool to soak, remove the water to the hand to hold the feed, and slowly ooze the water from the finger joint, and then steam on the pot. In order to make the raw materials steamed, it is best to start steaming the night before, suffocating for 1 night, and then waiting for the second day. When the temperature of the raw material is reduced to about 35 °C, add 7.5 to 10 kg of fresh distiller's grains or 250 g of koji to each 50 kg of steamed raw materials, mix well, and close the cylinder. In spring, summer and autumn, it is not necessary to warm up. In winter, it is necessary to warm the room, and it is better to keep the room temperature at around 20 °C. After 7 to 10 days, the feed becomes fragrant and delicious.
Saccharification
Corn, barley, sorghum and other concentrates, rich in starch, can be partially converted into maltose by saccharification, which not only improves the palatability of the feed, but also makes it easier to digest. The preparation method is as follows: first, the pulverized concentrate is placed in a wooden barrel or a cylinder, 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 dry powder of about 5 cm thick can be sprinkled on the surface of the feed, covered with a wooden cover or a plastic film to maintain the temperature at 55-60 ° C, and saccharified after three or four hours. For saccharified feed, the storage time should not exceed 10 hours to avoid rancidity.
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