... nature immune enhancer,used high quality active yeast as raw material. Feed grade yeast cell is a kind of nature ... ,no residue,nonpolluting and toxic side effects.Specification: ItemsSpecificationAppearanceWhit to yellow powderParicle Size100% through 60 meshBeta-Glucan% ≥20.0Mannanoligosaccharide ... can be mixed in the feed,but also adhesion to the surface in the feed,the product diluted with water, ...