天蓝苜蓿野生种质的品质分析研究  

Study on the nutrition quality of wild germplasm of Medicago lupulina

作　　者：冯毓琴[1] 曹致中[2] 

机构地区：[1]甘肃省农业科学院农产品贮藏加工研究所,甘肃兰州730070 [2]甘肃农业大学草业学院,甘肃兰州730070

出　　处：《草业科学》2009年第10期80-84,共5页Pratacultural Science

基　　金：国家科技部"十五"奶业重大专项"优质饲草高效生产关键技术及产业化示范"(2002BA518A-02)

摘　　要：以采集于甘肃、四川等我国西部地区的野生天蓝苜蓿Medicago lupulina生态型为试验材料，以《中国苜蓿》中的20种多年生苜蓿品种和蜗牛苜蓿M．scutellata、蒺藜苜蓿M．truncatula2种一年生苜蓿作参照，对其始花期的营养成分进行测定和比较。结果表明：13个天蓝苜蓿野生生态型的粗蛋白含量为24．26％～29．36％，粗脂肪为2．68％～4．36％，粗纤维为17．05％～22．61％，无氮浸出物为33．79％～40．25％，天蓝苜蓿各个生态型的各种营养指标均优于多年生苜蓿；3种一年生苜蓿中，蜗牛苜蓿的粗蛋白、粗脂肪以及无氮浸出物均为最低，品质较差。蒺藜苜蓿粗蛋白、粗脂肪、粗纤维含量高，无氮浸出物低，天蓝苜蓿虽然粗蛋白、粗脂肪略低于蒺黎苜蓿。但粗纤维都低，苹质柔软，适口性好．属优质饲草。Thirteen wild ecotypes of Medicago lupulina were collected in the northwest China to test their nutrients using 20 alfalfa varieties, M. scutellata andM. truncatula as the reference. The result indicated that the crude protein contents 13 representative ecotypes varied from 24. 26% to 29. 36%, the crude fat content ranged from 2.68% to 4.36% ,the crude fiber content ranged from 17.05% to 22.61% ,the nitrogen-free extract content ranged from 33.79% to 40. 25%. These results suggested that the nutrition value of black medic was higher than alfalfa. M. scutellata contained lower crude protein, crude fat and nilrogen-free extract but higher crude fiber. M. truncatula contained higher crude protein, crude fat, crude fiber and lower nitrogen-free extract.

关 键 词：野生天蓝苜蓿 生态型 品质 粗蛋白 粗脂肪 粗纤维 无氮浸出物 

分 类 号：S542.4[农业科学—作物学]