... 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 , ... tract. 4. Enhance immunity, adsorption Pathogenic factor, improve animal health. B. Recommended dosage Pig 2% -5%Poultry ... : 12 monthsPackage 1Package 2 Yeast powder for animal feed additive