1.factory price direct sell 2.free sample 3.with certification 4.high quality ... preparation. Chitosan Oligosaccharidesare a good nature feed additive with low dosage, no residual and strong stability. ·Feed additive in animal husbandry: pig, cattle, ... Da)≤5000,3000,2000,1000Degree of polymerization, DP2-30, 2-18, 2-12, 2-6Deacetylation ,( DAC),(%)≥90Particle(Mesh)≥100Moisture (%)≤10.0Ash Content (%)≤ ...