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本法与常规的静水有土饲养法相比,具有生长快、成本低、产量高、起捕方便等优点,技术要点如下: 一、建池选择有常年流水的地方建池,如水位差较大的河水、水库水、电厂发电后排出的冷却水、大工厂排放的机器冷却水等,有温泉水的地方则更好,可以通过调节水温使黄鳝全年在适温条件下生长。池最好建在室内,用水泥砖砌,每只池大小2—3平方米,池壁高40厘米,在池的相对位置设直径3—4厘米大的进水孔一个和排水孔二个,进水孔与池底等高,排水孔一个与池底等高,一个高出池
This method has the advantages of fast growth, low cost, high yield and convenient catching and fishing as compared with conventional hydrostatic and soil rearing methods. The technical points are as follows: I. Construction of ponds The pond with perennial flow of water is selected. If the water level difference is large The water of the river, the reservoir water, the cooling water discharged by the power plant after the power generation, the machine cooling water discharged by the large factories, etc., the place with the hot spring water is better, and the eel can be grown at suitable temperature throughout the year by adjusting the water temperature. The pool is best built indoors, with cement brick, each pool size of 2-3 square meters, 40 cm high pool wall, set the relative position of the pool 3-4 cm in diameter and a large water hole two drainage holes , Into the water hole and the bottom contour, drainage hole and the bottom of a contour, a higher than the pool