Calculate the economic benefit of raising Monopterus albus in a pond of 10 square meter. The construction cost of a 10 square meter aquaculture pond is about 200 yuan. You can buy 20 kilograms of Monopterus albus larvae, each of which is less than one or two, and you need 400 yuan. After feeding for six months, the body weight can be increased to more than four times, so that 20 kilograms can be increased to 80 kilograms. The feed cost of half a year's breeding is around 500 yuan, and the expenses such as medicine cost 100 yuan, and the total cost 1200 yuan. In winter, the price of Monopterus albus can reach one kilogram in 40 yuan, which is 3,200 yuan when multiplied by 80. Even if the cost is deducted, the profit is 2,000 yuan. In this way, a farmer can easily achieve an annual income of more than 65438+ 10,000 by building a 500-square-meter aquaculture pond. Even I can't help laughing at such a good business! So how can we cultivate eels well? First of all, the pool should be built in a sunny place with hard soil.

There are two main kinds of breeding ponds: mud land and cement land. Of course, there is another kind made of brick, but it is not recommended because of its high cost. 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 the bottom of the pond should be paved with pond mud of about 30 cm to store water 10- 15 cm. The water inlet and outlet should be set on the water surface, and a fine net should be placed to facilitate escape. Various aquatic plants such as duckweed and water hyacinth can be cultivated on the water surface, which can be used as a cool place for Monopterus albus. April-August is the spawning period of Monopterus albus every year. At this time, you can go to the spawning ground of Monopterus albus to catch it with gauze and put it in a small pond or water tank to hatch. After the seedlings are born, they can be fed with egg yolk and minced meat. It 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. Monopterus albus likes to eat alive and can eat well.

Earthworms and mussels are very good feeds when raised artificially, and all kinds of insects can also be lured into ponds by lights. If you need to change the feed, you need to starve them for two days first, so that they won't be picky eaters when they are put in. Monopterus albus is used to sleeping during the day and going out at night, so it needs to be fed at night for the first time, and then the time can be gradually advanced, and the feeding place needs to be fixed in one place. Pay attention to changing the pool water on the second day of feeding to keep sufficient dissolved oxygen.

Monopterus albus grows very slowly, and when the water temperature is lower than 10, it will hibernate. 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 to prevent eels from choking. The natural enemy of Monopterus albus is ducks, so ducks must not enter the Monopterus albus pond during the growth cycle. If it is too hot in summer, it is necessary to shade the eel pond to prevent heatstroke. In addition, some toads can be kept in the pool to prevent eels from getting sick.