Flower pods, also known as the seven-star oystercatchers and sea otters, are fertile, salinity-rich and economical fishes of wide temperature and saltiness and are the main species of marine aquaculture. In cultivation, calyx has the characteristics of fast growth, less disease, wide adaptability, high price, and good efficiency. At present, the domestic and international calyx cultures are on the rise. In recent years, the species has been tested in aquaculture in freshwater and the results are very satisfactory. First, the desalination of flower buds blossoms from summer flowers, the general desalination period is 7 days to 10 days. The specific practice is to purchase the summer flowers from the coastal areas and put them into cement ponds with salty seawater in Shengyou and Buyiao areas for raising. After adapting to the new environment, a portion of the pool water is pumped out every day, and the same amount of fresh water is added to reduce the salinity slightly, but the range of decline must not exceed 4 ‰. During this period, oxygen is continuously supplied to the pool, and fresh fish are fed in appropriate amounts. After about 7 days to 10 days of desalination, the salinity of the fish pond water was below 0.5 ‰, and it was stable for two days. The fry fish fry were then transferred to the pond for fingerling cultivation. Second, the species of fish breeding pond selection 1 acres of ponds, water depth of 1 meter to 1.5 meters. In the first half of restocking, clear ponds should be disinfected and 60 cm of water should be injected. After the toxicity disappears, 150 kg to 300 kg of fermented manure should be released per acre. After 7 days to 8 days, the fry ponds should be used. Summer flower pond density is 10/m2 to 15/m2. After the fish enters the pond, the water level is increased by 10 cm every day until the water depth is 1 meter to 1.5 meters. After the pond, it is necessary to gradually feed by artificial lure and bait. When baiting, first use the tool to beat the water surface to attract the attention of the fry, and then slowly evenly feed the artificially matched bait to ensure that the summer flowers can be eaten. After the individuals in flower buds grow up and their abilities increase, they must gradually domesticate their fixed food intake. The daily feeding amount is 8% to 10% of the fish's body weight. During intensive cultivation, due to the high stocking density of fry, special attention should be paid to water quality regulation to prevent oxygen deficiency and water quality changes, and new water should be added in time. Summer flower is cultivated for about 1 month. It can grow to 9 centimeters in length and can be transferred into adult fish culture. Third, the adult fish breeding pond pond area of ​​1,500 square meters to 5,000 square meters is appropriate, the pool 1.5 meters to 2 meters. A small amount of silt at the bottom of the pool, adequate water, fresh water and no pollution. The ponds were cleaned, disinfected and fertilized with conventional freshwater fish culture. Per acre stocking about 9 cm species of 1000 to 1200 tail, but also with a tail weight of 250 grams of flowers, 50 white fish, to regulate water quality. The fierce temperament of the flower buds kills each other when the feed is insufficient. Therefore, providing fresh, palatable and sufficient bait is the key to maintaining a good flower bud. Adult fish breeding can be fed with fresh wild fish and frozen seafood. Domesticated fish species can also be fed with compound feed. When the fishes first enter the pool, they are fed in the whole pond at the time of feeding to ensure that all the fry can feed enough feed. After 2 days to 3 days, the feeding points are gradually reduced, and the fish species are gradually domesticated to fixed spots and fed regularly. For large ponds over 2,000 square meters, 2 to 3 feeding points are provided; feeding 2 to 3 times a day, the daily feeding rate is 6% to 12% of the pond fish weight, and the daily weight is increased with the increase of calyx weight. The bait rate gradually decreased and it was 3% after 11 months. Feeding adopts throw casting method. Feeding techniques are summarized as “middle fast, two slowâ€. Slow start throwing and low throwing, when the fish cluster competes for food, throw more shots, wait until more than 80% of the fish are full, throw them slowly. Less feeding or stopping feeding, each feeding takes about 30 minutes. During the pond culture, the water quality requirements are fresh and non-polluting, dissolved oxygen is maintained at 4 mg/l or more, and the transparency is about 30 cm. The water body is periodically disinfected with calcified water to improve the water quality. During the hot season, pay attention to maintain a higher water level. 2. Cage Aquaculture Cage nets are mostly 2.5 cm to 3 cm in size, and cage sizes are mostly 2 m 2 m 1.5 m or 5 m 5 m 2 m. The frame is rough bamboo, and the bricks are attached to the four corners of the cage. The cages are installed in waters with stable water levels, fresh water, sunny backs, and no pollution. They are arranged in a “one†shape, with a box spacing of 2 to 3 meters, a row spacing of 15 to 20 meters, and a bottom of the tank at least 0.5 meters from the bottom. Fish stocking density is 100/m3. At the same time, it is appropriate to adopt some scraping fish to fully utilize the bait and prevent the algae from blocking the mesh. The feed can be extruded feed, suitable for feeding a small amount of fresh small mixed fish, the ratio of extruded material and small trash is suitable for 7:3 or 8:2; it can also be mainly fresh wild fish and frozen seafood. Feeding rates should be based on the weather, water temperature, fish activity, and feeding conditions. In summer and autumn, the water temperature is high, and the daily feeding rate is 4% to 8%. In winter and spring, the water temperature is low. The daily feeding rate is 1% to 3%, and the feeding rate is 3 to 6 times a day. Feeding technology also follows the "middle fast, two slow" principle. Observe daily, diligently check, diligently check, diligently wash bins, and prevent diseases, patience and meticulous feeding, to prevent the occurrence of windy, flood, pollution, and human accidents. Fourth, prevention and treatment of fish disease follows the principle of "prevention first, prevention and prevention of treatment," and monthly regular spillage of "strong chlorine" (0.3g/m3), prevention of disease, and regular adjustment of water quality. If hydromycosis occurs, use 400 grams per cubic meter of baking soda or salt mixture, or use 2 grams per cubic meter of methyl blue, and use it again every other day; if parasite occurs, use 0.7 g/m3 of sulfuric acid. Copper and ferrous sulfate mixture (5:2) or 20g/m3-30g/m3 formalin solution; 0.3g/m3 to 0.5g/m3 "strong chlorine" for bacterial diseases Sprinkle, while using oxytetracycline, avermectin, ciprofloxacin, lincomycin and other ingredients mixed, fed continuously for 4 days to 5 days.
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