1.high protien yeast feed , 2.high Digestion rate 3.rich in Amino acid, vitamin Yeast powder(Feed grade) 40%,45%,50%,55%,60 ... vitamins and carotenoids, especially rich in vitamins B, can prevent vitamin B deficiency occurred. 3. Rich in a variety of digestive enzymes, not ... Pig 2% -5%Poultry 2% -4%Cattle and sheep 5% -8%Aquatic 5% -10% C. Storage Stored in a cool, ventilated and ...