Soybean meal (SBM) is commonly used for livestock feeds, but its application in diets for livestock is limited due to some
antinutritional factors. The contents of methionine and lysine of soybean meal were promoted by Bacillus natto and Leuconostoc
mesenteroides fermentation, benefial for the livestock feeds. It was crude protein (CP) 56.8%, methionine 43.56 mg • g-1, and lysine
74.87 mg • g-1, cows fed a diet with FSBM milk yield raised 14.2%, the change in the milk protein, the lactose and the dry matter
content had also obvious increase. This convenient technique offers helpful exploration for industrialization of soybean meal
fermentation