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Squid is a large fish, its fast growth, resistance to disease and adaptability, can be cultured in ponds (earth ponds and cement pools) and cages, and ponds in the farming of carp should pay attention to the following issues. I. Pond conditions The squid rearing pond requires a large area, a deep pool of water, ample water sources, fresh water and pollution-free areas, convenient transportation and complete communication facilities. The area of ​​the pond is 5 mu - 10 mu, and the water depth is 2m - 3m. The water quality is relatively stable, and the dissolved oxygen value in the water is high, preferably above 5mg/L. The ponds should have separate inlets and outlets and slopes, equipped with a waterwheel type aerator, and set up a feed station. Second, the Qingtang disinfection and release the first half of the month, the pond water 15cm - 20cm, with 100kg / acre - 150kg / acre of lime water after the Quanchiposa to eliminate harmful organisms in the water; pond soak 3 days - 4 days later The pool water is drained out of the pool, and the bottom of the water is soaked in the bottom of the pool. The inlet is filtered with a 60-mesh sieve. The 15kg/mu -20kg/mu tea cake clear pond is sterilized. Before the disinfection, the teacake is broken and used. After soaking for 1 day, Quanchiposa can kill fish, shrimp and fish eggs in the pond. The tea bran after the clear pond is left in the pond as fertilizer. Ten days before planting, the pond was filled with water to a depth of 70cm--80cm, and then disinfected with a chlorine-containing disinfectant. Third, cultivate plankton for 7 days - 8 days before laying seedlings. Prepare 50kg dry chicken manure per acre pond, and soak chicken manure for 2 days. Disinfect and remove debris (filter) after disinfecting with chlorine-containing disinfectant. Quanchiposa. After the filter was packed with a fiber bag, it was put into the lower tuyere in the pond and continued to be used as a fertilizer for plankton cultivation. Fourth, fry stocking choose healthy and disease-free carp seedlings, body length is better than 20cm. The stocking density of large-sized seedlings is generally 400/mu -600 tails/mu. The time for letting go is not only to consider the appropriate water temperature, but also to consider the listing of adult fish. One day or two days before seedling transportation, feeds should be stopped. When transporting, use 38x82 polyethylene bags, add 3/5 of water to the bags, and adjust the water temperature to 12°C--15°C with ice cubes. Twenty fish fry 20cm--30cm in length are packaged and transported. If the transportation time is less than 8 hours, it can be transported by water truck. However, it is necessary to pay attention to changes in the water temperature during transportation. The effect is also very good. Water should be tested before 2 days before emergence, and about 10 fish fry with the same specifications should be placed in the cage to observe the activity of the catfish. If there is no abnormality, the seedlings can be planted. When the seedlings are planted normally, do not unwrap the arrived seed bags. Put all the bags in the pond. Slowly bring the water temperature inside the bag and the pond water temperature close to each other. Then open the bag and put the seeds into the pond. On conditional farms, it is best to continue to inflate fish by pouring water into a vat, and then put salt in the bucket so that the salinity reaches 2%. After 10 minutes, put the fish into the pool. Fifth, the choice of feed and feeding pond culture to feed the main feed, carp fry just when the pond, has not yet formed a habit of feeding at a fixed location, to be timely domestication. The feed can be placed on the feed table to increase the utilization of the feed and also facilitate daily observation. Some squid, such as Amur sturgeon, hybrid cricket, Russian oystercatcher, Chinese sturgeon, etc., have the characteristics of night-lighting, which can be illuminated near the feed table during nighttime domestication. Feeding should adhere to the principle of small meals, feed should be palatable, particle size can not be too large or too small, generally 1/2 of the fish's mouth crack is better. The fed amount is about 3% of the body weight of the fish, which is fed 3 times - 4 times a day, depending on the specific circumstances at any time to adjust the feeding amount. Sixth, daily management Patrol pond and growth observations. Each morning, evening and midnight, the patrol ponds will be inspected once every night, especially during the evening patrol ponds and early morning patrol ponds. Attention should be paid to observing the fish’s activities to prevent oxygen deficiency; when the air pressure is low during the summer rainy season, the patrol ponds must be grounded and problems must be identified. Turn on aerators or add new water to prevent flooding. Regularly check the growth and health status of squid and timely adjust the feeding rate and stocking density. When the squid growth difference in the pool is too large, it should be divided according to its specifications in time. 2. Water quality management. Measure the water temperature 3 times a day, and determine the physicochemical factors such as pH, dissolved oxygen, nitrite, and ammonia nitrogen regularly. It is worth noting that: Squid is a typical benthic fish, generally not floating, some species such as Chinese sturgeon, even if the dissolved oxygen in the water is not enough, it is not as obvious as the floating head of a fish, so under special circumstances If the water temperature is too high, the water color is wrong or the weather is hot, monitoring of the water quality must be strengthened. The dissolved oxygen in the water should be measured every morning. When the pond water is too thick, when the water transparency is less than 25cm or the dissolved oxygen is less than 5mg/L, the pond should be filled with fresh water to keep the water fresh. The optimum pH value for the growth of carp is 6.5--8.0. Too low pH will affect the metabolic activity and growth of carp and even endanger their lives. Most catfish live at a maximum temperature of 32°C, and water temperatures above 30°C pose a risk to the growth of catfish. Water temperature control can refer to the following measures: choose the right time for stocking, and put large-size fingerlings to shorten the breeding cycle; strive to feed large-size fingerlings after the annual high-temperature period, and reach the market standard before the arrival of the high temperature period in the next year. Avoid the high temperature; deepen the water level when the high temperature period arrives, reduce the stocking density; where conditions can also be taken to increase the amount of water and shelter shading and other measures. VII. Disease Prevention and Control 1. Fungal diseases. The pathogenic microorganisms are mainly aquatic fungi such as Hydrophila and Bacillus, and the common species are Sarcium hydromycium, cotton wool and flagella. Symptoms of sick fish are slow action, thin fish and no feeding. The prevention and control method is to prevent the fish from being injured. For the diseased fish, the fish can be soaked with clotrimazole and 1% salt and baking soda mixed solution for about 10 minutes. 2. Bacterial diseases. The hemorrhagic disease caused by Aeromonas bacteria is extremely contagious, with many harmful species and high mortality. The prevention and control method is to first perform a good environmental disinfection, while adding in the feed complex vitamins and immune polysaccharides used to improve the body's immune system; can also be added in the feed without residual antibiotics and Chinese herbal medicine prevention. The symptoms of white body disease are the lack of mucus on the body surface, and the body color of the fish becomes white, which can be treated with antibiotics. Symptoms of bacterial enteritis include abdomen and oral bleeding, swelling of the anus, and weight loss of the fish. The drug can be disinfected with nitrofluoride, and Chinese herbal medicine is added to the feed. 3. Parasitic fish disease. There are mainly three generations of insects, trichoderma, and small melon insects. Control methods can use 5% salt solution to soak the fish for 1 hour, or use 20% formalin to soak the fish body; Chinese herbs can also be used for treatment. 4. Non-pathogenic diseases. There are mainly hepatic encephalopathy, epicardial abscess, black body disease, and large stomach disease. The main causes of this type of illness are poor breeding environment, unreasonable feed Ingredients and other reasons, and attention should be paid to improving the environment and strengthening feed quality management.