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黔阳县双溪镇双溪村12组村民向光源,1991年利用1.4亩水面(平均水深1.5米)培育大规格鱼种,5月下旬投放夏花鱼种5400尾,其中:草鱼5000尾,鲢鳙鱼300尾,鲤鱼100尾。12月收获20cm左右的大规格鱼种5380尾,鱼种成活率96％,毛收入7100元,除去成本开支2720元外,纯收入4380元,亩平纯收入3128.57元。他的主要体会是: 1、生态防治鱼病。鱼病防治主要在于预防,鱼发病以后,治疗则比较困难,特别是草鱼肠炎、烂鳃、赤皮三大病,因而在防治鱼病上着重抓好以下几个环节:①夏花鱼种下塘前,池塘按每亩75公斤生石灰严格清塘消毒。②夏花鱼种下塘时,用4％的食盐水浸洗鱼种10分钟左右。③在池塘上风处搭草料台(食台),从5月份开始
Shuangxi Village, Shuangxi Town, Qiyang County The villagers of 12 groups were trained to light sources. In 1991, 1.4 million mu of water surface (average depth of 1.5 meters) were used to breed large-scale fingerlings. In late May, 5400 species of summer flowers were put into operation, of which 5000 were grass carp 300 tuna, carp 100 tail. In December, 5380 large-size fingerlings of about 20cm were harvested. The survival rate of fish species was 96% and the gross income was 7100 yuan. Except for the cost and expenditure of 2720 yuan, the net income was 4380 yuan and the net income per mu was 3128.57 yuan. His main experience is: 1, ecological control fish disease. Prevention and treatment of fish diseases mainly lies in prevention. After the fish is infected, treatment is more difficult, especially grass carp enteritis, rotten gills and red skin diseases. Therefore, the prevention and treatment of fish diseases focus on the following aspects: Before the pond 75 kg per acre strictly clear lime disinfection. ② summer flower species pond, with 4% salt water immersion species about 10 minutes. ③ in the pond take the forage station (food station), from the beginning of May