Profile: Hebei Shuntian Biotechnology Co., Ltd. specializes in the research and development production sales and technical services of animal feed additives. Brewers Yeast powder is the byproduct of beer production. As best sources of protein, it can meet the animal's demand for protein. It content high protein more than 45%, rich in amino acids and B vitamins. Allicin its main effective ingredients for diallyl trisulfide, diallyl disulfide and other volatile sulfur compounds.