一、干草生产的意义和现状干草生产在各国畜牧业的发展中具有十分重要的地位。干草是磷、钙维生素和微量元素的重要来源。按营养物质的基本成份,优质干草也是一种最好的平衡饲料。干草不仅是冬季枯草期家畜的主要补充饲料,而且在反刍动物和马的日粮组成中具有特别意义,是一种不可代替的粗饲料。干草可以给家畜提供维持各种生产性能(肉、乳、毛和 First, the significance and status of hay production Hay production in the development of animal husbandry in all countries has a very important position. Hay is an important source of phosphorus, calcium vitamins and trace elements. According to the basic ingredients of nutrients, high-quality hay is also one of the best balance of feed. Hay is not only the main feed supplement to livestock in the hay-of-hay in winter, but also has special significance in the composition of the ruminant and horse diets. It is an irreplaceable roughage. Hay can provide livestock with various productive properties (meat, milk, wool and hay)