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在池塘面积为0.9 hm~2的试验池中进行了无公害主养良种鲫鱼试验,放养良种鲫鱼、鲢、鳙、草鱼等鱼种,投喂颗粒饲料、调节好水质,经275 d养殖试验,总共收获良种鲫鱼商品鱼6165 kg,净产5431.8 kg;总收获鲢854.7 kg,净产774.7 kg;总收获鳙鱼1009.9 kg,净产961.9kg;总收获草鱼467.2 kg,净产387.2 kg;总收获黄桑鱼125 kg,净产111 kg。经抽样良种鲫鱼最大个体达770 g,平均体重450 g,成活率97.2%。饲料系数单以吃食鱼计1.85,以塘鱼总产计为1.43。总收入65640.7元,共获利润27443.9元,投入产出比为1:1.72。
In a test pond with a pond area of 0.9 hm ~ 2, the main pollution-free crucian carp was tested and stocking crucian carp, silver carp, bighead carp and grass carp and other fish species were fed with pellet feed to regulate the water quality. After breeding for 275 days, The total harvest of commercial carp 6165 kg, net production 5431.8 kg; total harvest of silver carp 854.7 kg, net production 774.7 kg; total catch of mandarin fish 1009.9 kg, net production 961.9kg; gross grass carp 467.2 kg, net production 387.2 kg; total harvest Yellow mulberry 125 kg, net yield 111 kg. The sampled breed crucian carp reached the maximum of 770 g, with an average body weight of 450 g and a survival rate of 97.2%. The feed coefficient was 1.85 for fish alone and 1.43 for total pond fish. The total income of 65640.7 yuan, a total profit of 27443.9 yuan, input-output ratio of 1: 1.72.