... of restrictive amino acids , 3.digestion and absorption rate high Poultry feed additives:Yeast powder(Feed grade) 40%,45%,50%,55 ... . Enhance immunity, adsorption Pathogenic factor, improve animal health. B. Recommended dosage Pig 2% -5%Poultry 2% -4%Cattle and sheep 5% -8 ... , ventilated and dry place Shelf life: 12 monthsPackage 1Package 2 Poultry feed additives