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1, scientific feeding. The bait is mainly feed-based, supplemented by green material, and the daily feeding amount is 4-6% of the amount of fish in ponds. The specific feeding amount depends on the water temperature, the water quality, and the fish eating conditions. The food is eaten in 2 hours. good. Feeding frequency 3-4 times a day, feed pellets and fish size fit, feed must be fresh, no mildew, more than noon vote, early evening cast less vote at night generally do not cast.
2, a reasonable fertilization. In the summer, inorganic fertilizer is mainly used, supplemented by organic fertilizer, nitrogen and phosphorus fertilizers are applied at a rate of 2-4 kilograms per mu, and pigs, chickens and human feces are fermented at 50 kg per mu. Fertilization time is suitable for sunny days from 10:00 to 12:00 in the morning. The fertilization interval is about 7 days. Each fertilization should be carried out a small number of times to make the water transparency about 45 cm. If the weather is abnormal, the transparency of the pool water is low and the pool water is turbid. Fertilization should be prohibited and water should be changed in time.
3, water quality regulation, prevent floating head. In summer, fish have large food intake, many excretions, and floating heads due to their capacity. Therefore, raise the water level to 150-200 cm and change the water frequently; splash lime every 10 days or so and use 20 kg/mu; Whether fishes have floated at dawn or not. During the day, observe the fish activities, eating conditions, and whether there are residual baits. Once the symptoms of floating head are found, add new water in time and start the aerator.
4. Disease prevention and control. Summer is the peak season of fish, mainly bleeding, hepatobiliary syndrome, gill disease, enteritis disease, red skin disease. Daily work is to do a good job of feed, tools, and disinfection. Each month and a half, bactericidal drugs are used to disinfect the pool water once a month, and baits are fed with allicin or three yellow powders each month. 3-5 days is a course of treatment to prevent fish diseases.
Summer Aquaculture Pool Management Technology Introduction
In summer, when the water temperature rises, the rainfall increases, and the food intake of farmed fish increases, it is the fastest growing period for fish. It is necessary to strengthen the management of fish ponds. The specific points are as follows: