Eel culture technology and profit

How much is the profit from raising eels? Let's take a pond of 10 square meter as an example to calculate the economic benefits of raising Monopterus albus. The construction cost of a 10 square meter aquaculture pond is around 200 yuan. You can buy 20 Jin of eel fry, each one is less than one or two, and you need 400 yuan. After feeding for six months, the weight can be increased to more than four times, so that 20 kg can be increased to 80 kg. The feed fee for half a year is around 500 yuan, the medicine fee is 100 yuan, and the total fee is 1200 yuan. But in winter, the price of Monopterus albus can reach a kilo in 40 yuan, which is 3,200 yuan multiplied by 80. Even after deducting the cost, there is still a profit of 2000 yuan. Such a farmer can easily build a 500-square-meter aquaculture pond with an annual income of more than 65,438+10,000 yuan. Even I can't help laughing when I see such a good business! So how can we raise eels? First, the swimming pool should be sunny and the soil should be hard. There are two kinds of breeding ponds, namely mud ponds and cement ponds. Of course, one kind is made of brick, but the cost is too high and it is not recommended. If you want to build a large aquaculture pond, cement land is the best choice, with an area of 15 square meter and a depth of about one meter. A small cave should be set on the wall of the pond to facilitate the entry of Monopterus albus, and pond mud of about 30 cm should be paved at the bottom to store 10- 15 cm of water. The water inlet and outlet should be set on the water surface and escape with a fine net. Aquatic plants such as duckweed and water hyacinth can be cultivated on the water surface, which can give eel a cool place. April-August is the spawning period of Monopterus albus every year. At this time, you can go to the eel spawning ground to fish with gauze and hatch in a small pond or water tank. After the seedlings are born, they can be fed with egg yolk and minced meat. They can grow to about 20 grams that year. In the early spring of the following year, it can be put into an eel pond for breeding. Eels like to eat alive, and they can eat well. Earthworms and mussels are very good feeds in artificial culture, and light can lure and kill all kinds of insects into the pond. If you need to change feed, you need to starve them for two days first, so that they won't be picky eaters. Monopterus albus is used to staying during the day and going out at night, so it takes night to put food for the first time, and the time can be gradually advanced in the future. In addition, the feeding place needs to be fixed in one place. Pay attention to changing the pool water the next day after feeding to keep the dissolved oxygen sufficient. Monopterus albus grows slowly and hibernates when the water temperature is below 10. Spring to winter is the peak season for the growth of Monopterus albus, so we must grasp the time and pay attention to management. After winter, the pool water needs to be dried, and then covered with straw to keep out the cold, but not too thick, so as not to suffocate the eel. The natural enemy of Monopterus albus is ducks, so ducks must not enter the Monopterus albus pond during its growth cycle. If it is too hot in summer, it is necessary to shade and cool the eel pond to prevent heatstroke. In addition, some toads can be kept in the pond to prevent eels from getting sick. How much can you earn by raising an acre of eels? You can get 4000 kilograms of large eels (weighing more than100g) by cultivating one acre of eels. In fact, how many kilograms of eel can be produced in one mu of land is mainly related to the farming method. However, because eels are not easy to get sick and grow fast, the yield is still guaranteed. According to the average price (40 yuan per kilogram) of large-sized eels in winter and spring, the income can reach 6,543,800 yuan, and the profit of raising an acre of eels is 6,543,800 yuan-63,000 yuan = 97,000 yuan. How to increase the yield of Monopterus albus? 1. Address selection: Monopterus albus pond should be located in a quiet, sheltered, sunny and near water place. The size of the pond can be determined according to the number of seedlings to be raised. There should be as many holes as possible in the wall of the pond so that eels can dig holes and lurk. The bottom of the pond should be composed of soil with more organic matter, which is soft and moderate, with a thickness of about 15cm. The reconstructed ditches and culverts must be dredged. In addition, the height should not be lower than 1m, and fences can be built to keep quiet if conditions permit. 2. Drainage construction: After site selection, disinfect the whole pond with appropriate amount of quicklime, and drain water for 7~ 10 days to create a natural environment. Some floating plants can be planted in the pool, and an appropriate amount of willows can be dotted around the pool. 10~20 days later, 3~5 small fish and shrimps will be stocked per square meter to make the pond full of vitality. It is forbidden to use well water, because well water not only has low oxygen content, but also many minerals in well water easily make the fish pond environment incompatible with the surrounding environment. 3. Stocking in batches: After the vernal equinox of that year, catch some local wild eels and put them in the pool, so that they can "camp" first. If farmers are not in a hurry, they should stay for about 15 days and raise a batch of parent eels, because it has strong reproductive ability and can catch fish continuously at one time, and it is best to have 12 pairs per square meter. In the future, farmers can release them in batches according to their own affordability, but the total amount per square meter should not exceed 20. 4. Runway construction: Monopterus albus is eager to find another "habitat" at night or in rainy and snowy days. In order to let nature take its course, you can build one or two "runways" next to the swimming pool (you can build them at the same time). The runway can be surrounded by cement pipes (sealed, not filled with mud, 2-3m long) or lead to another fish pond, which can give full play to the wildness of Monopterus albus and promote its growth. If conditions permit, you can also use the runway for irrigation, so that eels can play and strengthen their physique. 5. Feed food well: Monopterus albus grows fastest when spring and summer alternate. Snail meat, earthworms, mussels, maggots, moths, animal viscera, etc. can all be fed. In autumn, besides the above feed, you can also eat some plant feed, such as bran, cooked wheat, vegetable leaves, duckweed and so on. , should be properly fed, not too much or bad feed. Food should be eaten in a fixed place, at noon when the sun goes down in June. 6. Disease prevention: When stocking, it is best to use local wild eels (because they adapt to the environment). Don't put it in at one time, and don't throw away the injured eel carcass, so as not to get infected with bacteria, get sick and die, or even die in the whole pool. Eel seedlings are soaked with bleaching powder (3 10g water per meter) before entering the pond. It is found that there are yellow spots on the abdomen of Monopterus albus in the pond, which can be soaked in copper sulfate aqueous solution (8 grams per meter), but it takes 1 hour to replace it with fresh water.