The hot summer weather is the peak season for various species of aquaculture. At the same time, the increase in water temperature leads to the rapid growth of various types of bacteria and insect pests, resulting in aquaculture species that are highly susceptible to disease. How to strengthen the management of aquaculture ponds in summer directly affects the healthy growth of various aquaculture species. Therefore, the majority of aquaculture households should earnestly attach great importance to preventing problems before they occur. The following are the major points: First, adjust the water quality 1. The addition of new water can not only increase organic matter, but also can replenish trace elements in water. At the same time, it can detoxify organic matter and animal metabolism. With the increase of temperature, the pool water is gradually deepened to the highest level. With evaporation and leakage, new water should be recharged in a timely manner. Generally, fresh water is injected once every 7-10 days, 10-15 cm at a time. If the water supply is insufficient, the feeding amount and fertilizer amount should be reduced under the premise of ensuring the water color and transparency. 2. The pond should be fertilized in small quantities several times. The color of the water should be reddish brown, brown green, brownish green (dark green) and green, and the color of the water should be “living†(the color change is obvious); the transparency is controlled at 20-30 cm; When the water color is very strong, bleaching powder can be used regularly to prevent disease, and the biomass of phytoplankton can be reduced (note the change of dissolved oxygen during application). In the case of highly dense culture, the nitrogen content in the water is generally high, and the main application of phosphate fertilizer can be performed without applying or reducing nitrogen fertilizer. 3. Adjust the pH of the pool water to maintain the pH between 7.5-8.5. Quicklime can be applied every 15-20 days. The dosage is 20-30 pounds per acre, which is turned into a splash of water after turning into lime milk. It is applied every 20-30 days to improve the water quality, precipitate organic matter in the water, reduce the oxygen consumption of organic matter in the pool water, and promote the growth of phytoplankton. 4. Reasonably configure and use aerators, and install an impeller aerator based on the designed output of 5-8 mu. Both can adjust the water quality, but also increase oxygen. The use of aerators should be based on the law of dissolved oxygen in water and the role of aerators to scientifically determine the start-up time and machine operating time. We must adhere to the principle of opening at noon on sunny days, open early in the morning on cloudy days, open early in the evening, open before floating heads, and open in the middle of rainy nights; the operating time must be determined according to the weather, water quality, and the load of aerators. Second, strengthen investment management Feeding management should implement the principle of "four determinants", that is, timing, positioning, qualitative and quantitative. The amount of bait should be controlled flexibly according to the weather, water quality and eating conditions. Generally, the weather can feed more, and it can be less rainy on rainy days. It should be stopped before the weather is hot and thunderstorms. The water color is good, the water quality is cool, and normal feeding can be performed. The water color can increase the amount of feeding, and when the water color is too strong, the amount of feeding should be reduced and new water should be injected in time. Food contention can be normal and the food can be fed less frequently. When the food is not intense, the amount of feed can be reduced and the reason should be found. The amount of feed should be controlled during the disease prevention treatment and medication. Third, drug prevention 1. Use bleaching powder once every half month to prevent bacterial diseases. The amount is 1ppm and the whole pool is splashed evenly. 2. Disinfect the food field with bleach every month, once a day, and use 250 grams for each feeding point. Use it every day from 2:00 to 3:00 p.m. Before feeding, dissolve the bleaching powder and splash it around the food field and feed the fish. Can be used for 3-4 days. 3. Every 10 days after entering July, a bag was hung in the food market. The opportunity to eat food was used to make contact with the drug released from the hanging bag back and forth to kill parasites. Each time you use it for 3-4 days, change your medicine once a day. Drugs available copper sulfate, ferrous sulfate, the amount of each day 100 grams and 40 grams, daily dose of trichlorfon 100 grams. Both drugs are used separately. Each food farm hangs 4-6 bags. 4. Oral medicine baits, according to the different types of cultured species, scientifically added drugs formulated to prevent the disease of the bait, the dosage can be routinely used to prevent, even feeding 3 days for a course of treatment, use 1-2 courses per month. 5. Clever application of microbial agents: According to the pond water quality and temperature conditions, regular use of microbial agents, can regulate the water quality to stimulate the rapid proliferation of beneficial bacteria, absorb and consume harmful substances in the water, improve the ecological environment of the aquatic waters, so that the water quality is purified, Ensure the normal growth of various aquaculture species. Pumpkin Seed Kernels,Pumpkin Seeds Kernels Roasted,Shine Skin Pumpkin Seed Kernels,Pumpkin Seeds Or Kernels Wuyuan county dafeng oil food co.,ltd , https://www.dafengfood.com.cn