不同品种菊苣中菊苣多糖含量与饲用价值比较  

Comparing the content of chicory polysaccharide and the value of feeding in different chicory varieties

作　　者：何静 付薇 韩永芬 覃涛英 HE Jing;FU Wei;HAN Yongfen;QIN Taoying(Guizhou Institute of Grassland,Guiyang 550006,China;Guizhou Gold Agriculture Ecological Limited Company,Songtao 554100,China)

机构地区：[1]贵州省草业研究所,贵阳550006 [2]贵州金农富平生态农牧科技有限公司,贵州松桃554100

出　　处：《养殖与饲料》2024年第9期1-4,共4页Animals Breeding and Feed

基　　金：贵州省科研机构创新能力建设专项资金(黔科合服企[2022]004);贵州省科技成果转化与产业化应用项目(黔科合成果[2024]一般140)。

摘　　要：[目的]比较不同品种菊苣(普那、将军、大叶和G-5)的饲用和药用价值,为药饲兼用型菊苣新品种的选育提供理论基础。[方法]室内采用苯酚-硫酸法测定鲜、干菊苣叶片与根系总糖,采用3,5二硝基水杨酸盐比色法测定还原糖含量,计算菊苣多糖含量;小区随机区组试验测定鲜草产量和地下根系产量,莲坐期测定7个常规营养成分,采用LSD法对鲜草和根系产量进行方差分析。[结果]菊苣多糖含量干草高于鲜草,叶片含量较少,根系含量最高。菊苣新品系G-5的根系产量达364 kg/667 m^(2)、根系菊苣多糖含量达42.53 g/kg,均为各品种最高,同时其鲜草产量显著高于其他3个品种,达7161 kg/667 m^(2)。菊苣G-5粗蛋白和粗脂肪分别为25.48%和3.17%,高于其他3个品种。[结论]菊苣G-5多糖含量高,鲜草和地下根系产量高,营养价值高,表现出较好的药用和饲用价值。[Objects]The value of feeding and medicine in chicory varieties including Puna,Jiangjun,Daye,and G5 was compared to provide a theoretical basis for the breeding of new chicory varieties used for both medicine and feed.[Methods]The phenol-sulfuric acid method was used to determine the total sugar in the fresh leaves,dried leaves and roots of chicory indoor.The 3,5-dinitrosalicylic acid colorimetric method was used to determine the content of reducing sugars and calculate the content of chicory polysaccharides.Random block experiments were conducted in residential areas to determine the yield of fresh grass and root underground.Seven common nutritional components were determined during the period of sitting lotus.LSD method was used to make variance analysis(ANOVA)on the yield of fresh grass and root.[Results]The content of chicory polysaccharide in dried grass was higher than that in fresh grass,with less content in leaves and the highest content in roots.The yield of root in the new chicory variety G5 reached 364 kg/667 m^(2),and the content of chicory polysaccharides in the root reached 42.53 g/kg,both of which were the highest among all varieties.At the same time,its yield of fresh grass was significantly higher than that of the other three varieties,reaching 7161 kg/667 m^(2).The content of crude protein and crude fat in the chicory variety G5 was 25.48%and 3.17%,higher than that in the other three chicory varieties.[Conclusions]Chicory variety G5 had high content of polysaccharide,high yield of fresh grass and root underground,and high value of nutrition,showing good value of medicine and feeding.

关 键 词：菊苣 菊苣多糖 鲜草产量 根系产量 营养成分 

分 类 号：S816.1[农业科学—饲料科学]