| abstract |
The invention proposes a kind of disease-resistant perch cultural methods, include the following steps：S1：Quiet safe environment is selected to build pond, for the area in pond with 8-12 mus, depth of water 2-3m, every 1.2-1.5 mus of water surface is equipped with l platform aerator；S2：By pond Gan Tang, dredging and exposure, carried out disinfection with 70-80kg/ mus of quick lime within 14-16 days before putting seedling；S3：Desalinate fry；S4：Daily nursing：To fry feeding feed and check environment in aquaculture pond daily, water is changed to aquaculture pond every other week, the cultivation of high density perch can bring a large amount of residual bait in pool bottom and excreta, it is high that nuisance decomposes concentration, a large amount of consumption water oxygens, especially hot weather is even more serious, this is the major reason that fish disease generates, add the decomposition efficiency that the components such as plant ash, chlorite, zeolite powder improve residual bait and excreta, the consumption to degrade to oxygen in water body, avoids the outburst of fish disease, purifies water, increase oxygen content of water, improves perch yield per unit area and individual net weight. |