尼龙袋法和体外产气法评价南方地区几种非常规饲料的营养价值
时间:2018-09-18 20:51 来源:毕业论文 作者:毕业论文 点击:次
| 摘要:本次试验是为了解一些非常规饲料的营养物质成分及各种成分的含量和营养价值，营养物质种类为CP、EE和ADF、ADF；营养价值是使用尼龙袋法和体外产气法得出试验数据然后加以分析后得出的营养价值评定。本试验的试验动物是九只安装有瘘管的山羊，试验分别在不同时间点采集并且进行样品营养成分分析，使用尼龙袋法和体外产气法对这二十多种种粗饲料的NDF、ADF、EE、CP的瘤胃降解率特性研究；试验结果表明，这也表明了裹包青贮稻草的营养价值高于甘蔗稍草粉和其他试验样品，同时杏鲍菇与蚕沙的营养价值则比较低。不同非常规饲料营养成分含量差异较大，醋糟的EE含量比其他饲料含量高，中药渣、干木薯渣和姜秸秆的CP和EE含量较高。氨化油菜秸秆在羊的饲喂上有更高的饲用价值；甘蔗稍+降解剂与蚕沙直接应用在羊养殖业上的效益可能不明显。28369 毕业论文关键词：非常规饲料；营养成分分析；尼龙袋法；体外产气法；瘤胃降解率 Evaluation of nutritional value of several unconventional feed by nylon bag method and in vitro gas production method Abstract:This experiment is to understand the content and nutritional value of some non conventional feed nutrient composition and composition, nutrient species is CP, EE and ADF, ADF; nutritional value is the use of nylon bag technique and in vitro gas production method of test data, then analyze the nutritional value evaluation. This is the nine test animal test installed fistulated goats were collected at various time points and analyzed samples of nutrients, rate of rumen degradation characteristics using the nylon bag technique and in vitro gas production of the more than 20 kinds of forage NDF, ADF, EE, CP; test results show that this show that the nutritional value of rice straw silage was higher than that of sugarcane wrapped slightly grass powder and other test samples, and the nutritional value of Pleurotus eryngii and silkworm excrement is relatively low. The content of nutrients in different non conventional diets varied greatly. The content of EE in vinegar Lees was higher than that in other diets, and the contents of CP and EE in Chinese medicine residue, dry cassava residue and ginger straw were higher. The feeding value of rape straw ammoniation is higher in sheep fed; sugarcane + slightly degradation agent and silkworm excrement directly applied in sheep breeding industry benefits may not be obvious. Key words:Unconventional diet; nutritional component analysis; nylon bag method; in vitro gas production method; rumen degradability 目 录 摘要: 1 关键词 1 Abstract: 1 Key words 1 引言 2 1试验材料和方法 2 1.1试验材料与动物 2 1.1.1试验材料 2 1.1.2试验动物 2 1.2营养成分测定 2 1.2.1常规成分测定方法 2 1.3瘤胃降解试验方法 2 1.3.2称样与放袋 2 1.3.3培养时间与取袋 3 1.4体外产气试验方法 3 1.4.1样品的处理及称量 3 1.4.2人工瘤胃培养液的配置以及瘤胃夜的采集 3 1.4.3产气量测定 3 1.5数据分析及处理 3 1.5.1 瘤胃降解率的计算 3 1.5.2产气数据分析与处理 4 2结果与分析 4 2.1非常规饲料常规营养成分 4 2.2几种非常规饲料的DM在瘤胃里的降解 4 2.2.1几种粗饲料的NDF和ADF在瘤胃里的降解率 4 2.22几种粗饲料的EE在瘤胃里的降解率 6 (责任编辑：qin) |