... 2. excellent production 3. high protein bio-availability yeast powder feed grade 1) Provide high-quality oligopeptided protein to poults, improve ... The contents is a protein feed ,the contents of the three main limiting amino acids( methionine ,lysine and tryptophane) are all higher ... than those in soybean meal , with lysine being 25% higher 5) Dosage: 1-3% for poultry ...