摘要
分别用 0 %、4 %、8%的亚硫酸铵和 4 %尿素处理稻草 ,水分调至 4 5 % ,填紧压实 ,密封保存于贮罐内 1个月 ,然后用瘤胃尼龙袋法测定稻草有效降解率 ,分析相关营养指标。试验结果表明 :4 %和 8%亚硫酸铵可显著提高稻草中CP、S及Ash含量 ,分别提高CP 83.80 %、174 % ,S 370 %、4 6 5 % ,Ash 6 .13%、2 .76 % ;降低NDF、ADF含量 ,分别降低NDF 5 .4 8%、6 .98% ,ADF 3.94 %、14 .16 %。可显著提高 (P<0 .0 5 ) 稻草中DM、OM有效降解率 ,其中 8%亚硫酸铵分别提高 12 .5 7%、13.11% ,NDF有效降解率降低(P <0 .0 1) 13.5 4 %。与尿素处理稻草效果相比 ,亚硫酸铵不及4 %尿素处理稻草的效果好。 4 %尿素可显著提高CP含量 113.0 0 % ,分别降低NDF、ADF含量 0 .70 %、9.6 0 % ;可极显著 (P <0 .0 1) 提高DM、OM、NDF有效降解率 ,分别提高 2 2 .80 %、2 1.5 1%、10 .30 %。
Rice straw was treated with (NH 4) 2SO 3(0%,4%,8% ), (NH 2) 2CO (4%), moisture being 45 percent and being vacuumed storage for 1 month. 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) 2SO 3 ( 4%,8%) could significantly improve the content of CP,S and Ash in rice straw,and they respectively increases CP(83.80%,174%),S(370%,465%) and Ash(6.13%,2.76%).They also could reduce the content of NDF and ADF, respectively decrease NDF(5.48%,6.98%),ADF(3.94%,14.16%); could significantly increase (P<0.05) the effective degradability of DM and OM in rice straw and markedly decrease (P<0.05) the effective degradability of NDF. The (NH 4) 2SO 3 (8%) respectively improves the effective degradability(12.57%,13.11%) of DM and OM and decrease the effective degradability(13.54%) of NDF. The result was not as good as that of rice straw treated with (NH 2) 2CO (4%).Urea could markedly increase 113.00% the content of CP,decrease the content of NDF and ADF(0.70%,9.60%) respectively, and it could significantly increase (P<0.01) the effective degradability of DM,OM and NDF, respectively improving 22.80%,21.51% and 10.30%.
出处
《石河子大学学报（自然科学版）》
CAS
2002年第1期34-37,共4页
Journal of Shihezi University(Natural Science)
