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Prevention of fish disease in vitro during high temperature season
Every day, the feed residue in the food field is depleted, and the grass floating in the water and the mildewed feed are regularly removed to keep the water quality, the food field clean and the feed fresh. At the same time, a triangular or quadrangular food field frame is made of bamboo poles or grasshoppers. Each side is hung with a bamboo sluice to expose the water surface. 100 g of bleaching powder is placed in the bowl, and the dressing is changed once a day for 3 days. Food court. Can also be used 100 grams of copper sulfate and 400 grams of ferrous sulfate into the bag, hung for three days a month, once a day dressing, there may be prevention of grass carp Chinese razor clam, summer fish species of parasitic rickets and skin diseases. In addition, the use of 15 to 20 kg of fresh Qingsong or Pterocarya quinquefolium leaves is also effective in preventing anchor head lice.