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目前,全省池塘养殖仍是以传统的养殖方式为主体,这种养殖方式存在以下几个特点:1.设施化程度低。设施简单,受灾害影响大;2.水质调控能力弱。主要依赖自然水体和池塘在光、藻、氧作用下的自净能力,使用增氧机、生物制剂来增加水体溶氧和改善水质;3.用药量大。主要依靠药物防治病害;4.用水量大。据报道,我国池塘每生产1吨鱼要消耗水量10~15m3;5.排放控制度低。养殖排放水直接流入自然环境,池塘淤泥每年沉积10cm左右,每年清塘不彻底,
At present, the province’s pond farming is still based on the traditional farming methods as the main body, this breeding method has the following characteristics: 1. The degree of facilities is low. Simple facilities, affected by disasters; 2. Water quality control ability is weak. Mainly rely on the natural water and ponds in the light, algae and oxygen under the self-purification capacity, the use of aerator, biological agents to increase water dissolved oxygen and improve water quality; 3. Dosage. Mainly rely on drug control diseases; 4 large amount of water. It is reported that the production of 1 ton of fish per pond in our country consumes 10 ~ 15 m3 of water. 5. The degree of emission control is low. Aquaculture water directly into the natural environment, the pond sludge deposited about 10cm every year, not clear the pond every year,