... acids , 3.highdigestion and absorption rate Yeast powder(Feed grade) 40%,45%,50%,55%,60%.A. Function and use1.Is a ... quality protein supplement ingredients, amino acid balance, may be a partial substitute for fish meal ,in ... dry place Shelf life: 12 monthsPackage 1Package 2 Yeast feed 40%,45%,50%,55%,60%