Bran Feeding Technology

Bran is a by-product of wheat processed into flour. Its crude protein content can reach 12% -17%, and its quality is higher than that of wheat. It contains 0.67% lysine, 0.11% methionine and rich vitamin B family. However, the wheat bran contained a large amount of phosphorus, which was about 1.09%. The calcium content was small, about 0.2%, and the energy content was also low. If the pigs are fed with bran for a long time, they are most likely to cause severe calcium deficiency. Because pigs need more calcium, a 20-36 kg live pig needs 8.5 grams of calcium per day; 36-60 kg live pigs need 9-11 grams per day; 60-90 kg live pigs need calcium per day. - 13.7 grams. Each pig is calculated to eat 2.5 kg of bran every day. It contains only 5 g of calcium, which makes it difficult to meet the needs of pigs, leading to calcium deficiency in pigs (normal calcium to phosphorus ratio of pigs is about 1-1.5:1). The symptoms of calcium deficiency in pigs are: often biting bricks, food troughs, etc., the food consumption is gradually reduced, the body is lean, the joints are swollen, and the legs are sitting on the ground and the action is difficult. When feeding bran, the amount should be appropriate. General pigs should not exceed 20%, and weaned piglets should not exceed 5%-10%. Bran is best used in combination with other feeds such as corn and sorghum to promote gastrointestinal motility and avoid food lag. In order to prevent calcium deficiency, it is necessary to feed calcium-rich compound feed and supplement some broken egg shells or broken bones every day. Bran contains many organic compounds containing fiber and phosphorus, so the texture is bulky and laxative. Therefore, in the prenatal postpartum sow as a product, the appropriate amount of feed is generally 15% -25% of the ratio, can eliminate constipation and excessive milk, is conducive to sow physical recovery and growth and development of piglets, especially Feeding bran regularly during hot seasons is more beneficial to the growth of sows and piglets.

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