一、引进目的及经济性状随着我国人民生活水平的日益提高,人们逐步对高品质的鱼类产生了更大的需求,广大养殖专业户也迫切希望能养殖一些名、特、优、水产品种以获得更大的经济效益。我们对世界各地的许多优质鱼类进行了考证,结合我国人民的饮食习惯,最终确定了与我国长江大口鲶十分相似的多瑙河六须 First, the introduction of the purpose and economic traits With the increasing standard of living of our people, people gradually have a greater demand for high-quality fish, the majority of aquaculture households are also eager to be able to breed some famous, special, excellent, aquatic species Get greater economic benefits. We have carried out research on many high quality fish around the world, and combined with the dietary habits of our people, we have finally determined that the six Danube bears, which are very similar to our country,