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同浓缩饲料比,新鲜牧草不仅含有更为廉价的蛋白质、粗纤维、维生素和矿物质,而且单位面积产量高。以苜蓿为例,其单位面积的蛋白质产量比大豆还高4～6倍。但是,新鲜牧草只能为牛、羊等反刍动物食用,而且一年之中只能供几个月,从深秋到早春只得饲喂青贮料或干草,其营养价值将有损失,特别是自然晾晒干草时,遇雨损失更严重,而人工干燥又要耗费燃料。因此,近年来日本对湿法处理牧草进行了研究,已有一套成套设备在北海道投入试生产。
Compared with concentrated feed, fresh pastures contain not only cheaper proteins, crude fiber, vitamins and minerals, but also high yield per unit area. Taking alfalfa as an example, its protein yield per unit area is 4 to 6 times higher than that of soybean. However, fresh pastures can only be consumed by ruminants such as cattle and sheep, and they can only be consumed for several months of the year, leaving only silage or hay from late fall to early spring, with a loss of nutritional value, especially natural drying When hay, the loss of rain is more serious, and artificial drying consumes fuel. Therefore, in recent years, Japan conducted a study on the wet treatment of pasture and a complete set of equipment has been put into trial production in Hokkaido.