用青草直接喂鱼，其营养成分利用率低。如果打成草浆再喂鱼，其营养成分利用率可提高 50％以上，而且还可起到投饵和施肥的双重效果。其原因是，草浆中有很多与浮游生物大小相同的颗粒，可供滤食性和杂食性鱼类利用，而较大的碎片，则被草鱼、鳊鱼、团头鲂等草食性鱼类摄食。未 Feeding directly with grass, its nutrient utilization is low. If labeled as straw and then feed the fish, its nutritional content utilization can be increased by 50% or more, but also play a dual effect of feeding and fertilization. The reason for this is that there are many particles in the straw that are of the same size as plankton and are available for both filter feeders and omnivorous fish, whereas larger pieces are consumed by herbivorous fish such as grass carp, bighead carp and bighead carp. . not