目前我国的养虾池大部分都是土池,基建标准低,换水条件差,残饵与对虾粪便沉淀池底很难排出。所以一旦投饵过量,不但增加了生产成本,而且大量剩饵沉淀池底,给后期养成管理带来很多不利因素。特别是进入高温期后,沉淀于水下的剩饵、残饵、对虾粪便等有机物,在高温作用下分解并产生大量的硫化氢、氨、氮,使池水严重营养富化。轻者改变了对虾的生活习惯,池虾不愿底栖,游动于池水的上层或顺池边回游,蜕皮虾自然死亡,生长速度缓慢。在这种情况下,没有经验的管理人员往往会认为是饵料不足,对虾索饵洄游,以 At present, most of our shrimp ponds are earthen ponds with low infrastructure standards and poor water changing conditions. It is very difficult to discharge bait and shrimp excrement sedimentation bottom. Therefore, once over-feeding, not only increased production costs, but also a large number of residual bait sedimentation tank to develop late management to bring a lot of unfavorable factors. Especially after entering the high temperature period, the residual bait, bait, shrimp excrement and other organic matters precipitated under water decompose and produce a large amount of hydrogen sulfide, ammonia and nitrogen under the action of high temperature so that the water is seriously nutrient-enriched. Light changed the habit of shrimp, pond shrimp unwilling benthos, swimming in the upper pool or swim along the edge of the pool, the natural death of molting shrimp, the growth rate is slow. In this case, inexperienced managers tend to think that they are undernourished enough to migrate shrimp to bait