Eel farming seems to be a form of husbandry that still seems strange to relatives. However, this is a breeding model with promising development potential in the future. Therefore, providing yourself with basic knowledge about eel farming is extremely necessary for people at this time.
Techniques for building eel ponds
When building an eel tank, you need to choose an area of high ground, airtight and able to provide water with good quality. The construction of the eel tank is quite simple and does not require too high a cost. You only need to make a tank with an area of about 10 – 30 m2the height of each tub is from 1–1.3 m and covered with a waterproof nylon canvas to complete the basic tub.
After the construction is complete, pour the soil into the eel tank. Note, the soil should occupy about 1/2-2/3 of the area so that the eels can crawl into it to reside.
Next, pour water about 20-30cm high. Do not pour too much water will affect the growth rate of the eel. In addition, this animal often huddles in dark places with little light, so you can add water hyacinth and coconut vegetables to create shade. You can also plant some trees outside the tub to create shade, making the process of raising eels more convenient.
Eels are divided into 3 basic types. You should choose the first type, characterized by a dark yellow color that will provide the best growth potential. Meanwhile, yellow-green eels will have a slower growth rate. The type of eel with ash gray color is usually quite slow to grow, you should not choose this type if you want to raise eel for high yield.
After choosing the breed, you need to pay attention to the size of the baby eels to be able to best stock. Suitable weight will be 40 – 60 fish/kg, eel sizes are similar, healthy and should be stocked at a density of 60 – 80 fish/m2.2.
Techniques for feeding eels
When starting to raise eels, this type of animal needs some time to get used to the daily food. Therefore, for the first week of rearing, you should only feed the eels with earthworms and eat them in the evening. Later, when the eels get used to the family’s rearing conditions, you can feed the eels 2 meals a day and can eat different foods such as fish, snails, crabs…. finely crushed.
To ensure the growth rate as well as the health of the eels, when raising eels, you need to be careful not to feed rancid food. For leftovers, you should take them out of the tub to avoid contaminating the water source.
Tank cleaning techniques
With newly stocked eels, you will have to change the water every 7 days. After that, when raising eels for 2 months or more, you will have to change the water every 4 days. If the water is dirty, the eels will die or get a number of diseases such as sores, fungus, nematodes, disc disease … or not develop as desired.
Farmers should pay attention to the temperature difference in the tank (no more than 30oC) when changing water or day and night due to low water level in the tank; regularly take salt baths, supplement vitamin C to prevent shock after changing water …
Some measures to treat diseases in eels
Eel farmers will notice that eels often suffer from a number of diseases such as fever, sores, fungus, etc. When raising eels, depending on the symptoms of the disease, you can overcome it by the following ways.
Canker sores: To prevent canker sores, you use about 5g Oxytetra mixed with food and feed the eels for 5-7 days. For sores, you can use potassium permanganate topical.
Nematode disease: can use some drugs such as Vemedim, Bayer, Annova… mixed with food and fed to eels for 4-5 days.
Fever: reduce the density of eel farming to about 80-100 fish/m2 and make sure the water source is always clean by changing the water regularly.
Hopefully, after this article, people will be confident enough to build their own eel farming model with high efficiency and productivity.
See also: Answering questions about breeding eel farming techniques