Grape residue left after grape wine making can not only replace cornmeal, but also has a good effect.
According to scientific tests, in the dry matter per kilogram of grape slag, it contains 5.7 MJ of digestive energy and 86 g of digestible protein. Crude protein 13.2%, crude fat 13.2%, crude fiber 29.4%, calcium 0.67%, phosphorus 0.32%, also contains a variety of vitamins and trace elements. Compared with every kilogram of corn, the digestible protein is 32g more, 3.7% more crude protein, 0.65% more calcium, 0.09% more phosphorus, and 1.57% more lysine. Therefore, in the current situation that the supply of corn is in short supply and the price is high, it is indeed a good method to replace the cornmeal feed with cheap grape slag.
To feed pigs with grape slag, it is best to dry the grape stalks into dried grape slag, which is processed and crushed. This article is from the farm power network. Replace cornmeal with mixed feed and feed it. The proportion of the mixed feed is generally 10% to 20%. If the proportion is large, it is necessary to add a suitable amount of green and juicy feed.
In a pig farm experiment, in the mixed feed, about 15% of dried powdered grape slag was used instead of cornmeal to feed the pigs. Each head of slaughtered pig can save about 50kg of corn on average and reduce the cost by more than 20 yuan.
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