First, the pond must be clean and tidy. Simultaneously with the removal of residual sludge, 75 kg of quick lime per acre was used to disinfect and completely eliminate harmful germs.
Second, stocking should be reasonable. In the same pond, generally eaten fish accounted for 60% of the total stock, and fertilizer fish accounted for 40%. Summer should be sparse and sparse, and usually put on 800 to 1000 tails per acre.
Third, fish disease should be controlled in time. We must adhere to the following principles: early prevention without disease, early treatment with disease, and prevention and control. Lime is a good medicine for preventing fish diseases. It can both prevent disease and regulate water quality and promote fish growth. Usually available from 15 days to 20 days. Each kilogram (1 meter water depth) can be used about 15 kilograms.
Fourth, the floating head must guard against. During the summer with sultry thunderstorms, fish float easily. To strengthen the evening tour. Once abnormalities are found, oxygenation precautions should be taken immediately.
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