饲料成本激增,鱼价低迷,成了近两年京郊冷水鱼养殖户最头疼的事。鲟鱼、鲑鳟鱼创新团队将基于鱼粉替代技术的低氮磷排放环保型饲料的研发作为了饲料与安全功能研究室的重中之重。豆粕等植物性蛋白源由于其质量和来源较为稳定、价格较低而被作为主要替代蛋白质源进行研究。选取硬骨肉食性鱼类—花鲈和软骨硬鳞肉食性鱼类—西伯利亚鲟作为研究对象。研究发现,虽然花鲈和西伯利亚鲟在分类学上同为肉食性鱼类,但二 The surge in feed costs and the downturn in fish prices have become the most troublesome thing for cold-water fish farmers in the suburbs in the past two years. The Sturgeon and Salmon trout innovation team made the research and development of feedstuff and safety functions a top priority in the research and development of low-nitrogen and phosphorus-depleting environment-friendly feeds based on fish meal replacement technology. Plant protein sources such as soybean meal are being studied as major alternative protein sources due to their relatively stable quality and origin, low prices. Select bony carnivorous fish - perch and hard hatch carnivorous fish - Siberian sturgeon as the research object. The study found that although the perch and Siberian sturgeon are taxonomically the same carnivorous fish,