华南7号木薯茎叶营养价值评价  

Nutritional Value of Stems and Leaves of Manihot esculenta Crantz cv. South China 7

作　　者：周璐丽[1] 王定发[1] 张振文[1] 陈松笔[1] 周汉林[1] ZHOU Luli WANG Dingfa ZHANG Zhenwen CHEN Songbi ZHOU Hanlin(Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Hainan, Danzhou 571737, China)

机构地区：[1]中国热带农业科学院热带作物品种资源研究所,海南儋州571737

出　　处：《热带作物学报》2016年第12期2245-2249,共5页Chinese Journal of Tropical Crops

基　　金：海南省重大科技专项(No.ZDKJ2016017-03);公益性行业(农业)科研专项经费项目(No.201403049)

摘　　要：研究华南7号木薯生长期间6-11月份茎、叶营养成分动态变化及营养价值评价。结果表明,华南7号木薯叶粗蛋白含量为21.16%-31.80%,粗脂肪含量为4.17%-8.28%;茎秆中性洗涤纤维含量为24.67%-39.67%,酸性洗涤纤维含量为23.47%-29.74%。木薯叶片、茎秆鲜样、烘干样6月份生长初期氢氰酸含量最高,随着生长月份的增加,呈现下降的趋势。木薯茎叶的体外干物质消化率为77.74%。结果说明,华南7号木薯茎叶含有较高营养成分,具有较高的体外产气量和干物质消化率。The purpose of the present study was to determine the nutritional value of stems and leaves of Manihot esculenta Crantz cv. South China 7（SC7） during June to November. The results revealed that the leaves included crude protein of 21.16% to 31.80%, crude fat of 4.17% to 8.28% of SC7. And stems contained NDF of 24.67%to 39.67%, ADF of 23.47% to 29.74%. Hydrocyanic acid content of fresh and drying leaf and stem samples declined with increasing growth stage. Dry matter digestibility of leaf and stem was 77.74% in vitro. The conclusion suggested that the stems and leaves of SC7 contained higher nutrients, higher gas production and in vitro dry matter digestibility.

关 键 词：木薯茎叶 营养成分 氢氰酸 体外干物质消化率 

分 类 号：S533.33[农业科学—作物学]