1. Pig feed is strictly anti-mildew. Rapeseed cake and cottonseed cake should be treated with poison. When feeding the pregnant sow, strict control should be taken, generally not exceeding 5% of the total amount of feed. It is not necessary to use green and juicy fodder to feed the boar, otherwise it is easy to form "grass belly", which affects the ability of mating. When feeding pregnant female pigs, a large amount of green and juicy feed can promote estrus.
2. When used for soil seed and binary hybrid pig, it can reduce the proportion of corn and soybean cake, and replace some corn with rice flour and rice bran. Replace some soybean meal with rapeseed cake (meal) and cottonseed cake (meal) to reduce the feeding cost and raise the feeding efficiency.
3. The proportion of pig feed should be adjusted according to different seasons. Winter should increase the proportion of the energy source such as corn feed, appropriate to reduce the bean cake (meal), and other protein feed ratio, to enhance the pig cold-resistance, enhance the ability of resistance to disease, but not more than 15% drop in crude protein; Due to the decrease of intake in summer, the proportion of energy feed such as corn should be reduced appropriately and the content of calcium should be increased appropriately.
4. It is not suitable to boil the pig feed of leaf vegetables, or it can cause nitrite poisoning. Young maize seedlings and sorghum seedlings should not be fed to pigs, otherwise, they may cause hydrocyanate poisoning. The potato sprouts and their fresh stem leaves should not be fed to pigs, otherwise, they may be susceptible to the poisoning.
5. Attention should be paid to the addition of salt and alcohol, so as to avoid the economic loss caused by salt poisoning and alcohol poisoning.