【作者】 项锴锋；

【导师】 贾玉山；

【作者基本信息】 内蒙古农业大学 ， 草业科学， 2005， 硕士

【摘要】 本论文利用 3×3 拉丁方试验设计,研究了微贮处理对玉米秸秆、沙打旺及柠条等三种粗饲料饲用价值的影响,选用的评价指标为适口性、营养成分含量及各营养组分的动态降解率,并对玉米秸秆与沙打旺及柠条的组合样本进行了微贮试验,对其降解率进行了分析,以期探讨是否具有组合效应。研究结果表明:①微贮处理对玉米秸秆、沙打旺及柠条的营养成分含量无显著影响(P>0.05),表明微贮处理并不能显著提高玉米秸秆、沙打旺及柠条的营养价值;②微贮处理能够显著改善玉米秸秆、沙打旺及柠条的适口性,以柠条表现得最为明显,利用率增幅为 37.4%;③微贮处理能够显著改善玉米秸秆、沙打旺及柠条中干物质、NDF、有机物等营养组分的瘤胃降解特性,显著提高其瘤胃降解率;④微贮过程中夏盛酶制剂的添加,对柠条样本中 ADL 的降解能够产生极显著的影响,维持水平条件下,其 ADL 的动态降解率由8.40%增加到 19.44%,提高 11.04%;⑤玉米秸秆与沙打旺按 6:4 及玉米秸秆与柠条按 7:3 比例组合后,均表现为负组合效应。更多还原

【Abstract】 The 3×3 pulls the square experiment is used in this text,so it is convenient to study the feeding value infulunce of the micro-storage on the corn straw, erect milkvetch and korshinsk peashrub.The evaluation index includes palatableness, content of nutrition substance and degradation rate .Besides, the experiment is designed micro-storage experiment on the corn straw, erect milkvetch and korshinsk peashrub and made an analysis to the tendency degradation rate.In order to discuss whether they possess the compose effect, the research result makes clear that:①Micro-storage has little effect to the nutritition substance content of the corn strcw,erect milkvetch and korshinsk peashrub (P>0.05).It makes clear that biostorage can`t improve the nutrition value of the corn straw,erect milkvetch and korshinsk tress peashrub obviously;② Micro-storage can improve the palatableness of the corn straw,erect milkvetch and korshinsk peashrub,obviously the borshinsk peashrub,the utilization rate increased by 37.4%;③However , micro-storage can improve the rumen degradation ,character of dry matter ,neutral washing fiber organic compound,and improve the rumen decomposing rate obviously ;④If you add some Xiasheng enIyme to the process of biostorage ,it will arise a great effect to the degradation of lignin,The lignin degradation rate increased from 8.40% to 19.44%,the ampltnde is 11.04%;⑤If you mix the corn straw and erect milkvetch depending on the ratio of 6 to 4,at the same time ,mix the corn straw and korshinsk peashrub depending on the ratio of 7:3,you will find both of them show the negative group effect.更多还原