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鼻湖地处南洞庭湖滨,水面1700亩,1986年4月至11月开展围栏养鱼高产试验,经过217天的饲养,50亩围栏共产鲜鱼20265公斤,亩平405.3公斤,实现毛利润22258元,亩平445.2元,取得了较高的产量和较好的经济效益。一、试验条件 1.水源水质:鼻湖与湘江相通,湖水透明度80—100厘米,氨氮含量1.87毫克/升,硝酸盐氮为0.85毫克/升,含氧量13毫克/升,PH值7.4,围栏区水深在1.3—2米。
The nose lake is located in the South Dongting Lake coast, the water surface of 1700 acres, April 1986 to November to carry out high-yielding fenced-fish farming test, after 217 days of breeding, 50 acres of fenced communal fish 20265 kilograms, mu flat 405.3 kilograms, gross profit 22258 Yuan, mu flat 445.2 yuan, achieved higher yield and better economic benefits. First, the test conditions 1 water quality: the nasal lake and Xiangjiang River connected, the transparency of the lake 80-100 cm, ammonia content of 1.87 mg / l, nitrate nitrogen 0.85 mg / l, oxygen content of 13 mg / l, PH value of 7.4, Fence area depth of 1.3-2 meters.