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在主养鲤鱼池塘中进行鱼鳖混养是提高养殖综合效益、降低市场风险、增加农民收入的一种较好的养殖方式。甲鱼属高档的食用营养品,具有很高的药用价值,是水产中的珍品。鱼鳖混养一是增加和调节水体溶氧,鳖用肺呼吸,不占用水体中的氧气,其摄食活动及爬行能搅动水体上下层对流,使水体溶氧分布均匀,有利于池塘底质有机物的释放和浮游生物的生长;二是可以提高饵料利用率,鳖的剩余饵料和排泄物,一部分可被杂食性鱼类直接利用,一部分可被水中浮游生物利用,为花、白鲢等滤食性鱼类增加饵料;三是可以减少鱼病发生,鳖游泳速度慢,不伤害健康鱼,而能吃掉行动迟缓的病鱼和池中死鱼,起到“清道夫”的作用,遏止病原体传播,减少鱼病发生;四是可以提高水体利用率,提高单位水面养殖产量和经济效益。
In the main carp pond turtles polyculture is to improve the overall efficiency of farming, reduce market risk and increase farmers income a better way of farming. Turtle is a high-grade food nutrition, has a high medicinal value, is a treasures in aquatic products. Fish turtle polyculture first increase and adjust water dissolved oxygen, turtle breathing with the lungs, do not take up the oxygen in the water, its feeding activity and crawling can stir the upper and lower convective water body, so that dissolved oxygen distribution of water is conducive to the pond sediment organic matter Release and plankton growth; the second is to improve the utilization of bait, turtle remaining feed and excrement, part of the omnivorous fish can be used directly, part of the plankton can be used for water, flowers, silver carp and other filter feeding Fish increase food; third is to reduce the occurrence of fish disease, turtle swimming speed is slow, do not hurt healthy fish, but can eat slow fish and pond dead fish, play a “scavenger” role, to prevent the spread of pathogens , To reduce the occurrence of fish diseases; Fourth, water utilization can be increased to improve the unit surface aquaculture production and economic benefits.