Using nylon tanks to improve the productivity of terrestrial eel farming

With the model of using terrestrial eel nylon tanks, farmers do not need to use water but eels still live well, with high productivity and economic efficiency.

Terrestrial eel farming techniques

People in the districts of An Giang and Dong Thap are rushing to cultivate terrestrial eel in the flood season because this model brings high economic efficiency and the farming method is not too complicated. Eels are mud-dwelling species, but with this model, farmers do not need to use water but eels still live well, for economic efficiency.

People make use of vacant land on either side of the road or around the house, piling around and spreading nylon as umbrella to feed. Conventional aquariums are about 4m long, 2 - 2.5m wide, 1m or more high. In the tank, the farmers abandoned mud and other plants such as water hyacinth, corn stalks, reeds, dry straw, banana leaves . as a place to shelter eels.

Mr. Nguyen Van Xuan, a member of Farmer's Village in Vinh Loi hamlet, is one of the first farmers in this commune to raise eels in nylon tanks. With the initial amount of eel is 400 kg (25 - 30 per kg on average), after 7-9 months of raising, Mr. Xuan harvested about 980 kg of meat eel.

The average selling price is VND 70,000 - 140,000 / kg, minus costs, he earns nearly VND 29 million. In the flooding season of the following year, Mr. Xuan expanded the area and almost every season benefited more than 40 million VND from the land-based eel farming model.

Raising terrestrial eels in nylon tanks for farmers with high productivity and income.(Illustration)

In order to raise eels in nylon basins, it is recommended to choose high-altitude areas, towards the sun, avoid windstorms, abundant water sources and good water quality. An area of ​​10 - 30 m2 for tank construction is most suitable, just buy a waterproof nylon tarpaulin to build a tank.

The height of each basin is 1 - 1.3 m, leaving the cultivated land in the eel lake about 1/2 - 2/3 of the area where the eel is allowed to enter. Should pad more straw, banana trees to create a good environment or water hyacinth or growing vegetables, coconut vegetables into the lake to create shade in the tank.

The water level in the tank is from 20 - 30 cm, the water level is too deep, affecting the growth of eel. Eels are a species that doesn't like light, so before setting up a tank, you must have a roof or make a trellis to avoid the changing environment suddenly.

Eels in nylon tanks develop quite evenly.(Illustration)

Selection of breeds: The source of eel in the wild is increasingly exhausted, the artificial reproduction of eels is still very limited, most farmers have to buy from people who are allowed to incubate, set up, catch by electric impulses. .

Eels have 3 types (by color). Type I: The eel has a dark yellow color, develops best. Type II: yellow green, normal development. Type III: ash gray, slow growing. The size of eel seed is best cultured 40 - 60 fish / kg. Breeding eel breeds must be uniform in size, not be killed, healthy. The best stocking density is from 60 to 80 individuals / m2.

Feeding: Eels need to undergo domestication to get used to food. The first period of 7 - 10 days for eels to eat earthworms at night. After that, slowly train for eels to eat sooner, when the eel is strong, it can be fed twice a day. Eel food is mainly from copper fish, yellow snail, crab or sea fish bought for grinding and feeding.

In the process of caring, when feeding the eel, it is necessary to master the '4 defined' principles : (qualitative, quantitative, timed, positioning) to adjust the food to a reasonable level. Do not let the eel eat food that is stinking, uneaten food in the tank for 1-2 hours, then remove it, if left for long, it will affect the water environment.