Dry potato vines are directly used by farmers to feed pigs in many places. In fact, it would be better if the dried potato vines are salted and fermented before they are fed to pigs. The dried potato vines after salinization of pigs have a weight gain of about 1.2 kilograms per day, which is more than 30% higher than the daily weight gain of 0.9 kilograms. The specific method is: after crushing the dried potato vines, add 0.75 kilograms of salt per 50 kg of rattan powder and mix well, and then put it into a clean tank, compact it after filling, and inject warm water at about 35° C. until it is saturated. Finally, Use a wooden stick to put a couple of holes with a diameter of about 10 cm on the vine powder and it can be fermented for 5-7 days. After fermentation, crude fibers that are difficult to use in rattan powder are converted into rich nutrients, and they are sweet and have a strong palatability. When they are fed, a small amount of soybean powder and corn flour can be mixed into the fermented rattan powder.
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