... 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 order to reduce costs. 2. Rich in a variety of vitamins and carotenoids ... % C. Storage Stored in a cool, ventilated and dry place Shelf life: 12 monthsPackage 1Package 2 Yeast feed 40%,45%,50%,55%,60%