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前些年,虾病的暴发与流行,使我国对虾养殖业滑入低谷。近年来,通过综合防治、生态养殖、水质改善,以及对虾养殖技术的进步,养殖品种的调整,养殖方式的改进和病害防治水平的提高,养殖产量有所回升,对虾养殖业开始复苏。随着养虾状况的逐步好转,部分养殖地区虾农的侥幸心理有所抬头,往往忽视清池、饵料选择、水质调控,以及养殖过程中病害防治,养殖区周边环境等综合因素的作用。片面地追求在有限的承包期内获得最大效益,任意提高养殖密度,其结果不仅事与愿违,还将严重破坏养殖环境。
A few years ago, the outbreak and epidemic of shrimp disease shrimp farming in China slipped to the bottom. In recent years, the aquaculture production has started to recover through comprehensive prevention and control, ecological farming, improvement of water quality, improvement of shrimp farming technology, adjustment of breeding varieties, improvement of farming methods and improvement of disease prevention and control. With the gradual improvement of shrimp farming, shrimp farmers in some aquaculture areas have risen their chances. They often neglect the role of comprehensive factors such as clearing ponds, food selection, water quality control, disease prevention and control in the breeding process, and the surrounding environment in the breeding area. One-sided pursuit of the maximum benefits in a limited period of contract, arbitrarily raise the breeding density, the result is not only counterproductive, but also will seriously undermine the farming environment.