1Promote immune system 2.enhance ability animal resistance 3 Haccp,Iso,Fda,Kosher 4available now 5.Manufacturer Introduction 1.The brewer yeast proceeded by autolysis, separation, vacuum concentrating and spray drying, to gain the product.2.It could supply sustenance for microorganisms in ferment.3.Promote the development of immune system, and enhance the ability of the animal resistance.4.It ...