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一、试验材料1.鱼苗来源:夏花鱼种培育试验所用鱼苗,系由将天然亲鱼及人繁后代池塘培育成可催产的成熟亲鱼,经人工催产、受精、孵化而获得。2.培育池塘:夏花鱼种培育试验池塘为普通的养鱼池塘。面积0.4~3.5亩,水深0.8~1.2米,分新开挖塘和老鱼塘。试验?
First, the test material 1. Fish fry Source: summer fry breeding test fry used by the Department of natural broodstock and man-made offspring of ponds can be matured mature broodstock can be obtained after artificial ovulation, fertilization, hatching. 2. Pond cultivation: summer flower cultivation test ponds for ordinary fish ponds. Area of 0.4 to 3.5 acres, depth of 0.8 to 1.2 meters, sub-new excavation ponds and old ponds. test?