Application of grape slag in pig feed

The grape residue after grape wine is a good feed for pigs and can be used instead of cornmeal to feed pigs. According to the scientific determination, in each kilogram of grape dreg dry matter, it contains 5.7 MJ of digestive energy, 86 g of digestible protein, 13.2% of crude protein, 13.2% of crude fat, 29.4% of crude fiber, 0.67% of calcium, and 0.32% of phosphorus. Contains multiple vitamins and trace elements. Compared with every kilogram of corn, digestible protein can generally be 32 grams more, 3.7% more crude protein, 0.65% more calcium, more than 0.09% phosphorus, lysine more than 1.57%. Therefore, in the current situation where the price of corn is going up, it is indeed a good idea to use inexpensive grape slag instead of cornmeal to feed pigs. To feed pigs with grape slag, it is best to dry the grape stalks into dried grape stalks, and crush the crushed grape slag, and replace them with cornmeal to make a mixed feed. The percentage of the mixed feed is generally 10%-20. %, if the proportion is large, you need to feed the appropriate amount of green juice feed. In a pig farm experiment, in the mixed feed, about 15% of the dried powder of grape slag was used instead of corn powder to feed the pig. The pigs slaughtered on each head can save about 50 kilograms of corn on average and reduce the cost by about 20 yuan.

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