In summer, fish grows vigorously. During this period, the feed and organic matter in the pond are fermented quickly. Improper management can easily cause pond fish to become ill and even die. Management work requires meticulous and in-depth perseverance.

Strengthen feeding. Summer water temperatures are fed between 25-30°C. Normal concentrate feed is fed twice a day, green feed is fed 1-2 times a day, and fresh shellfish are fed once a day. The amount of bait can be controlled flexibly according to the following specific conditions: (1) The feeding condition of the fish, the amount of finished feed for the finished diet within half an hour after the dropping, the green feed for the degree of eating on the same day, and the amount of the shellfish before the next feeding; (2) When the weather is clear, fish should consume a large amount of food and should be cast more properly. When the weather is hot and the fish are eating poorly, the residual bait is easy to spoil and deteriorate, and should be cast less or not.

Rational fertilization. The main ponds for fertilizer-fed water fish should pay attention to reasonable fertilization in summer to prevent improper fertilization from damaging water quality. From May to June, the application of organic fertilizer is the main method, usually 7 to 10 days. Once in July to September, less organic fertilizer is applied or stopped, fertilizer is applied, and fertilizer is applied 4 to 6 days. Human and animal manure and other organic fertilizers each about 100 kilograms per acre, every 7 to 10 days, chemical fertilizers about 100 kilograms per acre, every 7 to 10 days. For squid and squid, the first time every 3 to 5 days, the first time is a moderate amount of fertilizer. Transparency is too large, the water color is light yellow or dark green, to increase the amount of fertilizer; the other hand, the transparency is too small, the water color is brown green, oil green or reddish-brown, can be applied less or not.

Stick to the tour pond. Take a 2-3 rounds of patrol on a daily basis, look for fish floating heads before and after dawn, watch the fish’s food intake in the afternoon, and check the fish’s food throughout the day to see if there are signs of floating heads. When the weather changes abruptly, the pond should be patrolled around midnight. To prevent floating heads: Stop feeding and fertilizing when signs of floating head are found. Immediately add water, increase oxygen in water, and adjust water quality. If the water source is difficult, use 100 tons of yellow mud, 5 kg of salt, or 2.5 kg of gypsum powder to make slurry for each mu of water.

In addition to decontamination. Always remove the remaining grasses and residues and remove the roots of large grasses that cannot be rotted. Frequently move the grass rack, clean the food table, sprinkle lime on the grass rack and food table, and regularly prevent it with drugs.

Adjust water quality. The commonly used adjustment methods are: (1) Regularly adding new water. Usually add water or change water once every 7-10 days, change the water every time by 10-15 cm, and keep the water depth 1.5-2 meters. If the pool water is seriously deteriorated, one third of the pond water should be drained and then the new water should be injected. (2) Aerator adjustment. Intensive ponds should be equipped with aerators during the summer. An aerator is set to open at 2-3 o'clock on a sunny day to regulate water quality. If there is a risk of floating heads, aerators are used to increase oxygen. (3) Stir the bottom of the tank. In order to promote the continuous decomposition of organic matter at the bottom of the pond, the bottom of the pond should be agitated every 10 days or so. Each agitation area should be less than half of the pond, and the agitation at the noon on the sunny day should be the best. (4) Apply lime. For fish ponds with an average depth of 1 meter, use 15 kg of quick lime per acre, fully dissolve and spray the whole water pool once or twice a month.

Prevent fish diseases. Summer is the season of fish disease, so it is necessary to do a good job of prevention and treatment of fish diseases: First, shore and food markets, bait stations to clean up every 15 days, and then use bleach or quicklime to disinfect the water once; Second, every 20 days , 250 grams of copper sulfate and 125 grams of ferrous sulfate per acre on the water Quanchiposa once to prevent fish bacterial skin disease and rickets; the third is to feed the first 2-3 times a month, according to 100 kg of fish The proportion of 500 grams of garlic will be smashed, mixed with feed, each time for 3-4 days in order to prevent fish enteritis and other diseases.

Record file. Fish farmers need to have a breeding diary (commonly known as Tongka) for each fish pond, stocking dates, mantissas, specifications, weight for each species of fish, daily feeding, fertilizer types and quantities, and water quality management. Fish disease prevention and control, etc., should be recorded on the corresponding form in order to summarize and accumulate experience.

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