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Tofu dregs is a by-product of tofu processing, rich in nutrients, of which 29.8% crude protein, nitrogen-free leachate 34.2%, crude fat 8.8%, calcium 0.97%, phosphorus 0.45%, is a good feed for pigs. If the feeding method is not appropriate, not only can not play a role, but also can cause side effects, resulting in malnutrition, diarrhea, and even poisoning death of pigs. Therefore, the use of tofu dregs as feed for pigs should pay attention to scientific methods.

Tofu dregs must be freshly used, and the dosage must be controlled when feeding. In addition, tofu dregs should be heated for 15 minutes before feeding to cook, in order to enhance the palatability and improve the utilization of protein absorption.

When feeding pigs with tofu dregs, the dosage should not be too much. Fresh tofu dregs fed to pigs, piglet stage feeding for 5% -8% of the diet, medium pig stage feeding to be controlled in the diet of 15% or less, fattening pig feeding to be controlled in the diet of 20% or less. In addition, with tofu dregs to feed pigs, feeding with a certain proportion of corn, bran and mineral elements, plus feeding some green feed to meet the needs of growth and development of pigs; can not use frozen tofu dregs to feed pigs, otherwise easy to cause digestive disorders in pigs, should be melted and then fed; feeding fresh tofu dregs should be kept as fresh as possible, if there is a mild sour taste, before feeding pigs in each kilogram of tofu dregs add 50 grams of Lime powder or baking soda mix well to neutralize acetic acid.

Currently, there are two storage methods for tofu dregs, one is anaerobic fermentation storage. With a sealed altar tofu dregs sealed to extend the shelf life. The second is sun-dried storage. Remove the water from the tofu dregs and control the moisture at 13%-14%. Industry insiders believe that tofu dregs are best used fresh to reduce costs, and sun-drying will cause some of the nutrients in tofu dregs to be lost. With anaerobic fermentation of tofu dregs feeding livestock, the amount of fresh feeding about the same; with sun-dried tofu dregs feeding livestock, the amount to be reduced to 1/5 of the amount of fresh feeding.