伊乐藻其形如我国的轮叶黑藻,原产于美洲,与我国的苦草、轮叶黑藻同属于水鳖科,是一种优质、速生、高产的沉水植物,是草食性鱼类的优质饲料。该草具有广阔的栽培前景,也具有很高的经济价值,其优点表现:(一)适应性强,只要水上无冰,即可栽培,5℃以上就可以生长。在寒冷的冬季也能以营养体越冬。当苦草、轮叶黑藻尚未发芽时,该草都已大量生长提早供应食草性鱼儿的开口料。旱草既占地,又怕水涝,它却耐水淹,不占地,大大地利用了水体空间。(二)成本低:因为该草种在鱼池的池底,不需施肥,不需割草,减低了养鱼的成本,提高了综合 Elodea algae its shape, such as China’s Hydrilla verticillata, native to the Americas, and China’s Vallisneria, Hydrilla verticillata belong to the same family of soft-shelled turtles, is a high-quality, fast-growing, high-yielding submerged plants, herbivorous fish quality feed. The grass has broad prospects for cultivation, but also has a high economic value, its advantages: (a) adaptability, as long as the ice-free water can be cultivated, 5 ℃ or more can grow. In the cold winter can also be winter nutrition body. When the bitter grass, Hydrilla verticillata has not yet germinated, the grass has been a large number of growth early supply of herbivorous fish openings expected. Both dry and grass land, fear of waterlogging, it is flooded, not occupied, greatly using the water space. (B) low cost: Because the grass species in the fish pond bottom, without fertilization, without mowing, reducing the cost of fish farming and improve the comprehensive