利用水面生产饲料,不占耕地、花钱少、产量高、管理方便,所以越来越被人们所重视。绿萍是较典型的水生饲料植物。在栽培条件较好的情况下,每亩水面年产鲜萍20吨,含蛋白质300—370千克。鲜萍柔软多汁,食口性极好,可作为猪、鸡、鸭、鹅的优质饲料。农村养畜户在自己房前屋后建立人工水面放养绿萍是切实可行的,方法如下: The use of water production feed, does not occupy the land, less money, high yield, easy management, so more and more attention. Luping is a more typical aquatic feed plant. In the case of good cultivation conditions, an annual output of 20 tons of fresh Ping per mu of water, containing 300-370 kg of protein. Xianping soft and juicy, excellent mouth tastes, can be used as high-quality feed for pigs, chickens, ducks, geese. It is practicable for rural livestock farmers to set up artificial water surface stocking in front of their own houses as follows: