用青草直接喂鱼,其营养利用率低。如果把草打成草浆再喂鱼,其营养利用率可提高50％以上,而且还可起到投饵和施肥的双重作用。其原因是,草浆中有很多与浮游生物大小相同的颗粒,可供滤食和杂食性鱼类利用,而较大的碎片,则可被草鱼、鳊鱼、团头鲂等草食性鱼类摄食。凡未被鱼类摄食的草浆颗粒及浆汁,除被大型浮游动物 Direct feeding of grass with grass, its low nutritional utilization. If the grass hurled straw fed fish, the nutritional utilization rate can be increased by 50% or more, but also play a dual role of feeding and fertilization. The reason for this is that there are many particles in the straw that are of the same size as the plankton, which can be used by both filter stocks and omnivorous fish, whereas larger pieces can be used by herbivorous fish such as grass carp, bighead carp and bighead carp Food intake. Where are not fish fed straw particles and juice, except by large zooplankton