紫花苜蓿通称苜蓿,是北方地区广泛栽培的一种优良牧草,也是多年生的豆科饲料,种一年可以连续利用三至五年,甚至十年以上。苜蓿具有很高的饲用价值,几乎含有畜禽所需要的一切营养物质,如蛋白质、维生素和矿物质都很丰富,而且必需氨基酸的 Alfalfa, commonly known as alfalfa, is a fine forages widely cultivated in northern China and is also a perennial legume feed that can be used continuously for three to five years or even over a decade. Medicago sativa has a very high feed value, contains almost all the nutrients needed by livestock and poultry, such as protein, vitamins and minerals are very rich, and essential amino acids