提高单位面积产量,实现高密度养鱼,是渔业养殖技术人员多年来梦昧以求的设相。然而要实现高密度养鱼,必需克服两难关,一是缺氧,二是鱼疾病的感柒。多年来虽经养殖技术人员的多方探索,但这两大难关仍是大面积养殖方式上所难以克服的课题。 Raising the yield per unit area and achieving high-density fish farming is the result of years of dreaming by fishery aquaculture technicians. However, to achieve high-density fish farming, we must overcome the dilemma, first, hypoxia, the second is the feeling of fish disease. Although many years of exploration through breeding technicians, these two major difficulties are still the most difficult issues to be overcome in large-scale breeding.