Effects of Astragalus membranaceus on the Growth Performance and Carcass Parameters of Finishing Lambs Comparison of polysaccharides between hairy root of Astragalus membranaceus and its cultivation A Study on Processing of the Root of Astragalus membranaceus Bge.by HPLC Comparing compositions and immunoactivities of polysaccharide in hair root of Astragalus membranaceus and cultivated A.membranaceus