美国大口胭脂鱼是原产于北美洲的大型经济鱼类,肉质细嫩,肉味鲜美,个体大,生长快,当年即可达食用规格。自然条件下主食浮游动物,兼食底栖动物,人工养殖可食商品饲料,在世界许多国家引入池塘、水库、河流养殖。1993年我国首次引入,现已在全国推广。但很多单位由于在该鱼的养殖方 American rouladera is a large-scale economic fish native to North America. It is delicate in meat quality and delicious in meat taste. It grows fast and can reach the standard of eating in the same year. Under natural conditions, the dominant species of zooplankton, amphibian and artificial feed for edible commodities are imported into ponds, reservoirs and rivers for breeding in many countries of the world. Our country was first introduced in 1993 and is now being promoted across the country. But many units due to the fish farming side