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In recent years, with the development of artificial excavation of intensive fish ponds in rural and suburban areas using waste water and marshes, the total yield and yield per unit of pond fish production have improved significantly, and have become a poverty-stricken area for rural and suburban people. An important way. I. Preparation before stocking 1. Trimming fish ponds. Fish ponds that have raised fish for several consecutive years are cleaned up once a year using pond winters. Excavate too much sludge, remove weeds and impurities, level the bottom of the pool, repair the pool, reinforce the pool, clear the drainage channels, and set the bar grills. 2, clear pond disinfection. Two months before the fish species pool, the temperature was stable above 3-5°C. The fish ponds were cleared with drugs. (Winter can also be used for wintering through the pool, freezing through the bottom of the pool, drying and exposing the clear pond to clear and kill the pool. Residual wild fish, shellfish, algae, aquatic insects, and various pathogens are harmful to fish. Commonly used methods include: calcification water clear pond, bleaching powder clear pond and trichlorfon, pentachlorophenol sodium and other pesticide clear ponds 3, Note the new water basal fertilizer.In the clear pond after 7 days disinfection (after the efficacy of the basic disappearance) 7-10 days before the fish species stocking infusion of 70-80 cm deep new water, and every 667 square meters (per acre) 300-400 kilograms of manure that is used to kill germs by stacking or adding lime are used as base fertilizer to fertilize the water quality, so that it can be used as a submerged fish species.2.Fish stocking 1. Source of fingerlings. High-yield, high-efficiency, important conditions, therefore, fish species should be dedicated to self-sufficiency.The main method is to nest fish in the adult fish pond.2.Specification of fish species.Restocking large-size fish species, high survival rate, rapid growth, general Grass, cockroach, clam, and cichlid are 12-19 cm. 6-12 cm is good, if it is a catch, put a certain number of proportions of the two kinds of jin.3, stocking density.The fine culture of fish pond water is good, water quality fertilizer, glutinous material is rich, to raise quail, squid For the main, suitable for adopting herbivorous and omnivorous fish, it is recommended to stock 400-600 fishes per 667 square meters (per acre), such as tilapia and other tropical fish, the density can be increased. Choose a sunny day with temperature between 5-10°C, and if the temperature is too high or too low, it is easy to make the fish species frostbite and bump during fishing, handling, and handling.. III. Feeding and management 1. Always check the pond to observe the fish dynamics. After the fish species enters the pond, each morning, mid-night, and evening ponds will be inspected once, and the contents of the fish ponds are as follows: (1) Checking pool activities and eating conditions; (2) Observing changes in water quality; (3) Observing whether the fish have floating heads and floating heads, especially high temperature and low pressure. Weather (day average temperature ≥30°C, daily maximum temperature ≥37°C, daily average pressure ≤990hpa, night wind is small) or strong convective weather should pay more attention to the floating head of the fish. If you find the fish floating head, the best way is to The pond is filled with new water 2. According to different seasons Temperature, timely and reasonable top dressing, feeding, and infusion of fresh water. Practice has proved that the growth rate of fish itself is 3-4 times faster in the temperature rising season (from April to July) than during the temperature falling season (from August to November). Therefore, under the same conditions, during the season when the temperature is rising, maximum feeding, fertilization, and full satisfaction of fish growth requirements (feeding amount is 54% of the whole year, fertilization is 77% of the whole year) ), can receive the effect of “do more with less.†(1) Apply topdressing in a timely manner. The principle of top dressing is “minor application and diligence†to maintain the optimal fatness of the pool water. The higher the temperature, the faster the decomposition of the fertilizer and the greater the oxygen consumption. Therefore, in July-August, you may not apply (or appropriately apply less). In the season when the temperature is rising, you can use more (April-June), and if you apply manure, apply 200 RMB per square meter per acre. -300 kg, but in the season when the temperature is decreasing (after September), fertilization is appropriate and 100-150 kg is applied per 667 square meters (per acre) per month. (2) Adhere to "Four Sets" and "Four Looks" and rationally cast bait. The total amount of feed per pond should be determined based on factors such as stocking species, estimated catfish yield, feed coefficient, and seasonal temperature. The specific implementation should be based on “four settings†(quality, quantity, timing, positioning) and “ Look at the principle of "seeing the seasonal temperature, seeing the color of the water, watching the weather, and watching the fish eating and drinking". When the temperature is 14°C, the feeding is started, and 2-5% of the fish body weight is used as the daily consignment amount twice a day; when the temperature is above 25°C (the season of fish growth), the diet is conceived 3 times a day. Cast grass 1-2 times. In addition, the amount of feed can be adjusted according to the fish eating conditions. After the bait, the fish will be eaten quickly, and the amount of bait should be increased appropriately, and vice versa. (3) Regularly add new water to regulate water quality. When the temperature is 15-28°C, add water once every 10-20 days; when the temperature is above 28°C, add water every 3-5 days, add about 20 centimeters of water each time to keep the water clean and clean. 3, timely prevention and treatment of fish disease. At temperatures between 20-26°C, fish diseases are most likely to occur. Therefore, during this period, fish diseases must be properly prevented and drugs must be disinfected. The specific method is: 1 every 5-7 days with 1-2ppm (50-100 millionth) of bleach or 0.7ppm of copper sulfate, or quicklime alternately sprinkle the food court and poolside; 2 every 3-5 days with 1- 2ppm bleaching powder dipping green feed ppm; 3 In addition, when the fish species are stocked, 20ppm concentration of permanganate or 100ppm sulfur copper bleaching powder shall be used for dipping the fish species for 20-30 minutes to kill the pathogenic bacteria and prevent the pathogenic bacteria Under the pool.