Descriptions of "Fubon" Yeast Cell Wall: Our yeast cell walls can help strengthening animal's immune system and enhancing immunity against pathogens for their abundant polysaccharides and functional oligosaccharides, while used as feed additives especially in aquaculture industries. Features of "Fubon" Yeast Cell Wall: 1. Good thermic and chemical stability and be able to withstand extreme processing conditions; 2. No toxicity; no side effect or residual pollution; Storage and Packaging of "Fubon" Yeast Cell Wall: 1. Preservation: Store in cool and dry places. 2. Packaging: 25KG each paper bag with polyethylene liner. 3. Shelf life: 24 months (stored in its original packaging)