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Pond intensification and high efficiency
This species is a small, warm-water fish of the family Polygonaceae. It has a purplish body (black ebony) on the whole body, a black back, and bright colors. It is named after the rice field pods. The flower buds have a good adaptability to life. Because the original aquaculture production in paddy fields was not high, but changed to pond culture, pond culture has the characteristics of high utilization rate of ponds, low investment, and high efficiency. Pond farming 40 to 80 days to meet all the market specifications, the current wholesale market in Guangxi, the price of 15 yuan / kg, annual 2-3 batches of adult fish breeding, annual profit of up to 8,000 acres. First, the pond preparation: pond area of ​​4-10 acres is appropriate, depth of 1.5-2 meters, water should be sufficient, good water quality, drainage and irrigation facilities, the inlet is equipped with wild fish facilities, the bottom flat, the soil to loam it is good. Oxygen equipment is also available. Before stocking, the fish ponds should be trimmed and clear ponds: shovel grass to make up the dikes, remove excess silt, and keep the mud 6 to 10 cm thick; use 100 kg of lime per acre to thoroughly clear the pond. After 7 days, fresh water can be injected. 200-250 kilograms of fermented manure is applied per mu of fishpond to conduct fertilizer ponds and cultivate biological feed. Fish species can be released after 7 days. Second, the stocking of fish: Fish species required to be healthy, consistent specifications, no injury-free, lively swimming, and put enough time. Every year, in March, stocking is started. Each year, 5-7 species of yellow bonito fishes are put into use as main breeding stocks, and 200 large-sized bream species are stocked, and 80 mu and mussel species are stocked. The fish in front of the pond needs to be soaked with 3% to 5% salt solution for 10 minutes. After the fish are sterilized, they are placed on the tuyere at the pond. Third, feeding and management: 1, bait feed: pods need to feed the puff of the full price with expanded feed, protein content of 28% to 30%. Baiting is to achieve the "four set" principle, that is, to achieve qualitative, quantitative, positioning, feeding regularly. Feed twice a day, because the crickets are more gluttonous, so the feed must be scientifically fed, the daily feed amount is controlled to 4% to 8% of the fish body weight, and the amount of feed should be 80% full. At the same time, a certain proportion of multivitamins can be added to compound feeds to meet the growth needs of alfalfa. 2. Water quality management: After the fish is put into the pond, add water once every 10 days, and add 10-20 centimeters of water each time; every 15 days, the water depth of 1 meter per acre should be spilled once with lime 20 kg Quanchipi to adjust water quality. If the water quality is alkaline, quick lime is not needed. The transparency of the pond water is maintained at 25-30 cm. 3. Prevention of fish diseases: There are fewer diseases in locust buds, but prevention and control of fish diseases are still needed. Can be used to prevent the combination of external consumption and oral treatment, the whole pond spilled once a month 1ppm bleaching or strong chlorine fine O. 3ppm. Add a certain proportion of antibacterial drugs (such as allicin, etc.) to the feed to make the bait, 1-2 times a month. 4. Stick to the patrol twice a day and find that the problem is solved in time. Every 7 days, check the growth status of the alfalfa to get the fish that meet the specifications on the market. Fourth, fishing and listing: Because there is a strict listing specification of 30-50g/tail, the fish price exceeding this specification will be halved. Therefore, 40 days after the start of the fish species, they are caught on the market and used four-inch screens to “catching large and small†(more than five inches above the screen). The fish that cannot reach the specifications are soaked in 3% to 5% salt solution for 10 minutes and then put into the original pond for continued feeding. In the future, every 7-10 days fishing once listed until all listed. V. Benefit Analysis: Generally 2 batches per year. Expenditure: RMB 300,00 fish stock fee per acre, stocking bream, 240 yuan; feed, 6,000 yuan; labor and other expenses 2,100 yuan. Benefits: 1000 kg of fish, output value of 15,000 yuan, and profit of 6660 yuan.鲢 鳙 鳙 鳙 收益 收益 收益 收益 收益 收益 收益 收益 收益 收益 收益 收益 收益 收益 收益 收益 收益 收益 收益 收益 收益 收益 收益 收益 收益 收益 收益 收益 收益 收益 收益 收益 收益 收益 收益 收益 收益 收益 收益 收益 收益 收益 收益 收益 收益 收益 收益 收益. Mu profit of 1340 yuan. The two total mu profit is 8,000 yuan.