1, you can't feed alone. Because the content of nitrogen-free extract in distiller's grains is low, the quality of crude protein is poor, and carotene, vitamin D, calcium and so on are lacking. When feeding distiller's grains, it is necessary to match a certain amount of corn, bran, cake and other feeds and a proper amount of calcium, and feed more green feed, which can not only increase nutrition, but also prevent constipation. Generally, the feeding amount of fresh distiller's grains should not exceed 25%, the dry distiller's grains should be controlled below 10%, and the distiller's grains containing a lot of chaff should be beaten. Add more mirabilite when seasoning at ordinary times.

2. Distiller's grains should not be fed directly. Heat and evaporate alcohol before feeding. For the distiller's grains with abnormal acid, lime should be added for neutralization. Add 50-75g lime powder to each kilogram of distiller's grains and stir evenly. Moldy distiller's grains should be discarded and not fed to pigs.

3. After feeding distiller's grains 10, feed them for one week to prevent distiller's grains from causing chronic poisoning. In order to ensure that distiller's grains are fed every day, pigs in each column should be used alternately, that is, pigs in this column should be fed for ten days, and pigs in the other column should be fed after six days.

4. According to the water content of distiller's grains, a certain amount of rice bran is appropriately added for cellar storage; Or pour the distiller's grains with more water into the tank (pool) and let it settle, then remove the clear water on the upper layer and add new distiller's grains. Repeatedly, the sediment will be thick paste, which can be fed to pigs for a long time, but the last sediment should keep a certain amount of water, isolate the air and prevent deterioration.

5. Specific feeding methods: For shelf pigs, the feeding amount can be larger, but it cannot exceed 30% of the diet; Piglets and finishing pigs should be controlled within 15%; During pregnancy and lactation, sows should be properly fed less, generally around 10%. If fed too much, it is easy to cause miscarriage, stillbirth, weak birth or postpartum diarrhea in sows. It is best not to feed distiller's grains to boars before sperm collection, so as to avoid sperm deformity and affect fertilization. When feeding in summer, pay attention to adding some salt and gypsum to reduce the temperature and fire.