How to raise Monopterus Albus? Are the costs and profits high?

Ricefield eel, also known as long fish and eel, belongs to the Gill family, which is distributed in China except the Qinghai-Tibet Plateau. At present, artificial culture of Monopterus Albus has the characteristics of mature and simple method, small area, wide source of feed, few diseases, short cycle, quick effect, high economic benefit and so on. How to raise Monopterus Albus? Are the costs and profits high?

How to raise Monopterus Albus?

1. Build a pool

Aquaculture ponds should be built in places where Xiangyang has a certain amount of water and soil. There are three types of aquaculture ponds: mud land, cement land and bricklaying around the mud structure. If the area is larger, the cement pond is the best. It has an area of 10 mi 15 square meters and a depth of 0.8 mi 1 m. The wall of the pond is equipped with a small cave, and the pond is covered with 30 cm of mud to facilitate the eel to drill a hole to rest. The storage of water is 10ml / 15cm. Water inlet and outlet is set at the surface of the water, and polyethylene fine net is used to prevent escape. Half of the area of the pond is used to plant mushrooms or cultivate duckweed and water hyacinth aquatic plants as eel shade and latent perch to prevent heat. The wall of the rice field eel culture pond is at least 30 centimeters above the water to prevent the rice field eel from escaping when Rain Water scours it.

2. Stocking

Eel spawning season is from April to August every year, and the peak period is from May to June. During the spawning period, the eel goes to the place where the eel lives to look for fish eggs, use gauze to get fertilized eggs or seedlings, and then put the fish eggs into a small pond or tile tank to hatch and raise seedlings. The seedlings were fed with egg yolk, minced meat, bran cake powder and so on. When the tail weight reaches 20 grams in the same year or the next year, the adult fish can be cultured in a large pond. In addition, you can also buy young fish on the market and put them in the pond so that the turnover is faster. Eel release period, in early spring is appropriate, raising to October, big eel can be more than 150 grams, the small is also about 100 grams. It is better to breed 40 eels per kilogram, and avoid mixed culture of large and small eels to avoid killing or swallowing each other. It can raise 1 Mel 2.5 kilograms per square meter. Eel has a strong ability of self-mating and reproduction. generally, it is no longer necessary to put into fry after the first stocking, but the protection and management must be strengthened.

3. Feed

Monopterus Albus likes to eat live food and is very gluttonous. Artificial feeding of ricefield eel, earthworms and clam meat are all good fodder. Lights can also be used to trap flying insects into the pond, or pig blood can be used to induce flies to lay eggs and maggots as feed. Earthworms are the best, 8 earthworms can increase the meat of eel by 1 gram. Monopterus Albus has a strict choice of food, and it is difficult to change its diet in a short time after feeding one kind of food for a long time. Therefore, when changing the variety of feed, it is necessary not to bait in the first 3 days, so that it does not choose food because of hunger and eat new bait. Monopterus Albus is used to sleeping during the day and going out at night, so it is advisable to give bait at 4-5 pm every day, or before dark in the evening, and then feed it early every day. After a period of taming the bait, it can be fed at 9: 00 am or 2: 00 pm every day. The feeding method can also be used every other day to increase its food intake. The bait can be put on the bait table made of wooden frame or polyethylene mesh cloth, the feeding place should be fixed, and the feeding amount should be 67% of the fish's body weight. The next day after baiting, fresh water should be changed to keep the water quality fresh and the dissolved oxygen in the pool high.

4. Management

Monopterus Albus grows very slowly, and the suitable water temperature is 15 ℃ 28 ℃. The feeding of Monopterus Albus is affected when the water temperature is lower than 15 ℃, and the feeding stops completely below 10 ℃ and goes into hibernation. When the water temperature exceeds 28 ℃, the food intake of Monopterus Albus will also decrease, so measures should be taken to reduce the water temperature. Monopterus Albus is the peak growth season from spring to winter, so it is necessary to strengthen management, feed well, time and quantity, so that the growth of eel can be accelerated. The leftover bait should be removed in time. Be sure to get enough feed before the beginning of winter. After the beginning of winter, the pool water must be drained and covered with straw to prevent the rice field eel from suffocating to death, so as to protect the pool room from freezing to death due to low temperature. Water will be rehydrated in time after spring.

5. Disease

Prevention and control of natural enemies. During the growing period of Monopterus Albus, especially the newly released fish fry and the breeding season of Monopterus Albus, ducks must not be allowed to hunt in the pond. In summer, sometimes because the temperature is too high, Monopterus Albus will be in a coma due to heatstroke. At this time, you should change cool water or shade to cool down, and then feed fresh clam meat. The main disease of Monopterus Albus is plum blossom spot, which is characterized by the appearance of yellow round spot of soybean grain on the back of Monopterus Albus. Treatment: can often put some toads (toads) in the pool, because the toad has prevention and treatment effect, can reduce the incidence of disease. If it is found that the disease has occurred, you can use the head of a peeled toad, tie it with a rope and drag it back and forth in the pool several times. 1 Mel can remove the disease within 2 days.

II. Analysis of cost and profit of Monopterus Albus Culture

(1) input

The main results are as follows: 1. The cost of building the pool is 200 yuan, and the cost of purchasing 15 million 20 kilograms of wild ricefield eel is about 300 million 400 yuan per kilogram of medium size rice field eel in summer (30 kilograms and 50 grams).

2. After feeding for 5 to 8 months, the body weight of Monopterus Albus can be increased by 3 to 5 times. If we calculate that the weight of 20 kg Monopterus Albus can be increased by 60 kg, according to the feed cost of 8 yuan per kilogram of Monopterus Albus (in fact, the use of a large number of fly maggots, earthworms and so on is not so much), it will cost 480 yuan.

3. The total expenditure on drugs and other items is 100 yuan, and the total cost of the above four items is about 1080,1180 yuan.

(2) profits

The large size rice field eel (strip weight more than 100g) is 80 kg in a 10 square meter culture pond. According to the medium price (40 yuan per kilogram) of large size rice field eel purchased in the market in winter and spring, the income can be 3200 yuan, and the input-output ratio is about 12.8 grams. Specifically, a culture pond with a mouth of 10 square meters can make a profit of more than 2000 yuan (200 yuan per square meter) during the culture period of a few months. An ordinary farmer, taking 50 ponds as an example, can earn more than 100000 yuan.