Piglet feed based on bacterial enzyme synergistic fermentation process and preparation method thereof

A method for preparing a piglet feed, wherein the piglet feed is consisted of 10-20% by weight of a basic component and 80-90% by weight of a bacterial enzyme synergistic fermentation feed;

• a total of 100% by weight of the basic component is 26.67% by weight of a soy protein concentrate, 26.67% by weight of a whey powder, 26.67% by weight of a fish meal, 2.67% by weight of a sodium chloride, 0.8% by a weight of choline chloride, 6% by weight of a stone powder, 3.46% by weight of a hydrogen phosphate calcium, 0.33% by weight of compound vitamins, 1.33% by weight of compound trace elements, and 5.4% by weight of compound amino acids;
• the bacterial enzyme synergistic fermentation feed is a fermentation substrate that is fermented in the presence of enzymes and mixture of bacterial strains;
• and
• a total of 100% by weight of the fermentation substrate comprises 36% by weight of a corn, 36% by weight of a corn, 12% by weight of a soybean meal, 12% by weight of a soybean, 2% by weight of a sucrose, and 2% by weight of a soybean oil.
• the method for preparing the piglet feed comprises the following steps:
• step (1), providing bacterial strains Lactobacillus plantarum, Pediococcus pentosaceus, and Aspergillus niger;
• step (2), providing a mixture of protease (>50 000 U/g), an amylase (>7 000 U/g), a lipase (>8 000 U/g), a cellulase (>10 000 U/g);
• step (3), mixing the fermentation substrate uniformly in water in a the ratio of 1:0.5, adding the enzyme mixture and the bacterial strains in sequence during a stirring process, and fermenting at 28-30° C. for 12 h to obtain a bacterial enzyme synergistic fermentation feed;
• and
• step (4), mixing the basic component uniformly in proportions, adding the bacterial enzyme synergistic fermentation feed prepared in step (3), and stirring the basic component and the bacterial enzyme synergistic fermentation feed uniformly.