The invention discloses a method for preparing pork pig feed by adopting banana leaf sheath as a main
raw material. The pork pig feed is prepared by the following raw materials in parts by weight: 53 to 58 parts of banana leaf sheath
powder, 28 to 32 parts of corn
powder, 8 to 12 parts of wheat
bran and 4 to 6 parts of Chinese
pennisetum. The method comprises the following steps: (1) selecting raw materials: after bananas are harvested, stripping the banana leaf sheath one by one, and removing rotten and turned leaf sheath and other impurities; (2) treating raw materials: crushing the banana leaf sheath obtained in the step (1), placing the crushed banana leaf sheath into a fermenting tank, adjusting the pH value to be 6.5 to 7.0 to obtain fermented liquid, introducing mature
lactic acid bacteria liquid strain, adding
pectinase, stirring, standing, fermenting, and taking out and draining to obtain banana leaf sheath
powder; (3) mixing: crushing the Chinese
pennisetum, adding the corn powder, the wheat
bran and the banana leaf sheath powder obtained in the step (2), and mixing according to a ratio; (4)
drying:
drying the mixed material, and packaging the mixed material to obtain a finished product. By adopting the method, while the meat quality and the fattening time are guaranteed, the raising cost is obviously reduced, the breeding benefit of pigs can be obviously increased, and the breeding benefit can be improved by 25 percent or more compared with the traditional breeding technology.