Problems in processing and modulating pig feed
Pigs are omnivores, so many feeds can be used to feed pigs. Among the commonly used feeds are: corn, sorghum, barley, sweet potato (dry), etc.; for green feed: pumpkin, carrot, sweet potato , 苜蓿, è‰æœ¨æ¨¨, bitter leeks, Chinese milk vetch, edulis, water hyacinth, water peanuts, water duckweed, some leaves, weeds, wild vegetables can also be used to feed pigs; protein feeds are: bean cake (粕), Peanut cake (粕), rapeseed cake, cottonseed cake, fish meal, meat and bone meal, blood meal, feather powder, etc.; belonging to mineral feed: stone powder, shell powder and so on. Common raw materials for compound feed are: corn, barley, wheat bran, oatmeal, bean cake (粕), fish meal, feed yeast, as well as mineral additives, vitamin additives, synthetic amino acids, etc.
(1) Pay attention to the following problems in daily application:
1. The feed should be processed as fine as possible to prevent mildew and deterioration; the fish meal should be used as little as possible to reduce the cost of feeding; the rapeseed cake and cottonseed cake should be detoxified, and the dosage should be strictly controlled when feeding pregnant sows. Do not exceed 5% of the total amount of feed; do not use too much succulent feed to feed boars, otherwise it is easy to form "grass belly", affecting the ability to breed, when feeding empty sows, a large number of application of green and juicy feed can promote estrus.
2. When used in soil breeding pigs and binary hybrid pigs, the proportion of corn and bean cakes can be appropriately reduced, and a part of corn can be replaced by secondary powder and rice bran, and some of them can be replaced by rapeseed cake (粕) and cottonseed cake (粕). Cardamom.
3. It should be noted that the proportion of feed is adjusted according to the season. In winter, the proportion of energy feed such as corn should be increased, and the proportion of protein feed such as bean cake (粕) should be reduced appropriately, but the crude protein should not fall by more than 15 percentage points; in summer, due to the decrease in feed intake, the proportion of energy feed such as corn should be reduced, and calcium should be appropriately increased. The content.
4. Leafy feed should not be simmered, otherwise it is easy to cause nitrite poisoning; tender corn seedlings and sorghum seedlings should not be fed to pigs, otherwise it will cause hydrogen cyanide poisoning; potato buds and their fresh stems and leaves should not be fed pigs, otherwise, It is easy to cause solanine poisoning; in addition, it is necessary to control the feeding amount of salt and distiller's grains to prevent salt poisoning and distiller's poisoning.
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