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The Effect of the Effective Degradability of the Rice Straw Treated with Ammonium Sulphite

ZHANG Wen-ju 1 ,YAN Xiang-hua 2 ,GONG Yue-sheng 3 ,WANG Jia-qi 4 (1.College of Animal Sci-Tech,Shihezi University,Xinjiang Shihezi832003,China;2.College of Animal Sci-Tech.,Jiangxi Agriculture University,Jiangxi Nanchang330000,China;3.Husbandry&Veterinary College,Northwest Agriculture&Forestry University,Shanxi Yangling712100,China;4.Animal Science Institute of CAAS,Beijing Hajdian100094,China)  
Rice straw was treated with(NH 4 ) 2 SO 3 (0%,4%,8%),moisture being45percent and being1month vacuum store.Then the method of rumen nylon bag was used to test the effective degradability of rice straw,and analyzing the correlated nutrition index.The trial effect indicated:(NH 4 ) 2 SO 3 (4%,8%)could signiicantly improve(P0.01)the content of CP and S in rice straw,and they respectively increases CP (83.80%,174%),S (370%,465%).They also could significantly reduce(P0.01)the content of NDF and ADF,respectively decreasing NDF5.48%and6.98%,ADF3.94%and14.16%;Could significantly increase (P0.01)the effective degradability of DM and OM in rice straw and markedly decreae(P0.01)the effective degradability of NDF.The(NH 4 ) 2 SO 3 (8%)respectively improves the effective degradability12.57%and13.11%of DM and OM,and decrease the effective degradability13.54%of NDF.
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