Freshwater eel culture: freshwater eel culture technology, whether the eel is a marine fish or a freshwater fish

Eel is also called white eel, but white eel can only be said to be a species of eel. Eels are mainly distributed in the Yangtze River, Minjiang River, Pearl River and other places in China. With the fishing of fishermen, there are fewer and fewer wild eels. But now the economic value of eels in the market is considerable. Eels are both freshwater fish and sea fish. Eels lay eggs in the deep sea and grow up in a freshwater environment. What conditions do eels need to have if they are to be farmed? Let's follow the editor to learn about it.

1. Breeding ground

Aquaculture site is one of the most basic conditions for eel farming, if there is no suitable breeding site, then do not talk about breeding eel. Eel breeding sites generally need at least 50 mu of specifications, followed by the farm should be equipped with water injection system, drainage system, heating and cooling system, aerator, etc., but also plan eel ponds. In addition, the water source near the farm should be rich, the water quality is pollution-free, electricity and transportation are convenient.

2. Water quality requirements

Water quality is very important to eel culture, and the requirements of water quality are mainly reflected in these aspects. The first is the water temperature. in general, the water temperature is preferably 25 to 28 degrees, but it is also possible for the temperature to be between 15 and 30 degrees. The second is that the water quality is preferably slightly acidic, so that eels are more productive. Then there should be plenty of oxygen in the water, preferably five to twelve milligrams per liter. In addition, the contents of heavy calcium, nitrate and this period, hydrogen sulfide, ammonia and iron should be reasonable, neither too much nor too little, otherwise it will also affect the normal growth of eels.

3. Bait requirements

Eel is a kind of carnivorous fish, so when we breed eel, we also have requirements for bait. If the bait is unreasonable, it will also lead to culture failure. In general, we need to have an adequate supply of earthworms or feed such as small insects and small fish. The second is that farmed fresh fish can be ground and fed by a meat grinder. There is also the use of processed bait, that is, granular or powdered animal feed for processors.

4. Culture technology

The culture technology of eel is an important condition for high yield and high yield. the reason for the failure of many farmers is that the culture technology is not professional, which is prone to a lot of problems in the process of culture, resulting in the death of a large number of eels and heavy losses. Well, before we breed eel, it is best to carry out professional cultivation and practical operation of eel culture technology, if there is no problem before breeding.

Eel culture at present, its culture technology is not very perfect, so it needs to be constantly improved. As for our farmers, we also need to constantly improve their farming expertise, so as to improve the economic benefits of farming.