鱼鳖混养是提高普通养鱼塘产量和效益的有效途径之一。二者混养不仅可以共生,且能相互促进。鳖是生活在水中的两栖爬行动物,经常往返于池底和水表,能使表层水与底层水得以交流,可改善和提高底层水的溶氧量,利于鱼类的新陈代谢和浮游生物的生长繁殖;鳖在池底的活动,可促进池底有机质的分解,加速能量循环;鳖还可吃掉行动迟缓的病鱼和死鱼,能减少鱼病的传播;鳖和鱼排出的粪便可以肥水,而鲢鳙鱼可调节池水肥度,利于鳖的生长,形成互利共生的良性循环,鱼鳖混养的技术要点是: Fish turtle polyculture is to improve the yield and benefits of ordinary fish ponds one of the effective ways. The two polyculture can not only symbiotic, and can promote each other. Soft-shelled turtle is an amphibious and reptile living in the water, often from the bottom and the water table, make the surface water and the underlying water can be exchanged to improve and enhance the dissolved oxygen in the bottom water, which will help fish metabolism and plankton growth and reproduction ; Turtle activity at the bottom of the pool can promote the decomposition of organic matter at the bottom of the pool to speed up the energy cycle; turtle can also eat slow sick fish and dead fish, can reduce the spread of fish diseases; turtles and fish excretion can fertilizer, The silver carp and bighead carp can adjust the water and fat fertilizer, which will help the growth of turtle and form a virtuous cycle of mutually beneficial symbiosis. The technical points of fish and turtle polyculture are: