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How to scientifically use cottonseed cake to feed pigs
Cottonseed cake is a by-product of oilseed from cottonseed, containing 30% to 40% of crude protein, 12.14 MJ/kg of digestive energy. The content of calcium and phosphorus is comparable to that of leguminous feed, but it is used because it contains a certain amount of toxic free gossypol. restricted. If a large number of pigs are fed for a long time, it will cause poisoning, so it must be detoxified and limited to feed the pigs. In pig breeding practices, the following methods can be used to reduce the toxicity of cottonseed cake, so as to better play its nutritional value: 1, boiled method: the crushed cottonseed cake will be soaked in warm water for 8 to 12 hours, the soaking solution drained Add appropriate amount of fresh water (preferably immersed cottonseed cake), heat and boil for 1 hour, stir while boiling, and feed after cooling. 2, ferrous sulfate solution soaking method: the cottonseed cake with 1% ferrous sulfate solution soaked overnight, the middle stirring several times, after soaking to remove soaking liquid, can be fed directly. 3, alkaline water immersion method: with 5% lime water, or 2.5% of the grass gray water, or soda solution soak a day and night, and then drain the soaking solution, washed with water after three times filter, you can feed. 4. Controlling feeding amount: The amount of cottonseed cakes fed to finisher pigs should not exceed 400 grams per day, and that of pregnant sows should not exceed 250 grams per day. (The sow should stop feeding before and during the second half of the year), and newly weaned piglets do not exceed 100 g; generally feed for 1 month after feeding for 1 month, or for half a month for half a month. 5. Feeding green feed: Green feed is rich in Vitamins and more water, especially contains more carotene and vitamin c, and has laxative effect, which can reduce the toxic effects, prevent constipation and improve nutritional status.