What are the requirements for eel farming?

The earthen pond for raising eels should be ventilated and sunny, with sufficient water resources, and the area should not be too large. Planting water hyacinths or water peanuts with a width of 0.8 ~ 1 m around the soil pond and enclosing them with fences or nets can not only prevent the eels from escaping, but also provide shade for their growth.

Before stocking, the excessive silt in the land should be removed, the bottom of the pond should be leveled, the ridge and the entrance and exit of the pond should be repaired, and the pond should be cleaned and disinfected 10 ~ 1000 square meters 125 days before the eel is raised in the pond, so as to completely kill wild miscellaneous fish and enemy creatures. Then water with a depth of 0.6-0.7m is injected 5-7 days before the eel enters the pond, and the water inlet is filtered by a 60-mesh screen.

Finally, apply base fertilizer. Generally, 300 ~ 400 kilograms of decomposed pig cow dung is poured every 1000 square meter. After the water is light green or yellowish brown, the eel species are released so that they can eat enough natural bait after entering the pool. /kloc-deepen the pool water to 1.5m in about 0/5 days.

2. Treatment and release of eel species

The suitable temperature for eel growth is 20 ~ 28℃ and the water temperature is 65438 02℃, so the release time is generally from late February to mid-March. Soak eel seeds in water for 20-30 minutes before putting them in the bag to adapt to the water temperature. Only when the temperature difference between the inside and outside of the bag is less than 5℃ can the bag be opened, and then 2-3 pots of water are poured into the bag with a small pot, so that the eel fry can gradually adapt to the low dissolved oxygen state from the high dissolved oxygen state.

The released eel varieties should be bluish gray in color, thick in skin, elastic and active in swimming, and the specifications of eel varieties in the same pond should be neat and consistent, otherwise the competition among eels will affect the feeding of individual weak people.

The stocking density is generally about 4000 ~ 5000, with 20 grams per 1000 square meter; About 50 grams can throw 3000 ~ 4000 tails; About 100g can be put into 2000 ~ 3000 tails.

At the same time, 50 bighead carp, 30 silver carp and 200 tilapia can be mixed in every 65,438+0,000 square meters soil pond, which can filter plankton, eat feces excreted by eels and purify water quality. On the other hand, it can increase fish production.

3, feed types and feeding

Eel artificial breeding mainly relies on special compound feed (available in the market), and 50-60 grams of multivitamins (vitamins A, B, C and E) and 1.5-2 kilograms of cod liver oil are added to every 50 kilograms of special feed. Young eels should be added less and adult eels should be added more. If there is a temporary shortage of special feed, animal feed such as small miscellaneous fish, internal organs of livestock and poultry and silkworm chrysalis can be ground and mixed with flour to replace it, and its crude protein content must be above 40%.

Eels are carnivorous fish and greedy. When feeding, we should implement the principle of "four determinations", that is, qualitative, quantitative, timing and positioning. Quality decision: that is, to ensure the quality of feed. The prepared feed should be moderate in hardness (the amount of water added is 1.2 ~ 1.3 times), fresh and clean, and cannot deteriorate and rot. Quantification: that is, according to the specifications, feeding, digestion, weather, water temperature and water quality of eels, the feeding amount should be appropriate.

Generally, the daily feeding amount is 65438+ 0.5% ~ 2.5% of the eel's weight, and it is appropriate to eat it within 12 hours. Timing: The fish is small in size and high in density, and it is fed at 8: 00 am and 4: 00 pm every day 1 time; The size of eel is above 1 00g, and it can be fed1time from 8: 00 to 9: 00 every morning. Positioning: that is, the feed is placed on a fixed food table, and 2 ~ 3 food tables can be set up per 1000 square meter soil pool.

4. Daily management and disease prevention

Patrol the pond every morning and evening to observe the activities and feeding of eels, and check the drain after rain to prevent the fish from escaping. Add fresh water 1 time every 10 ~ 15 days at ordinary times, and add fresh water 1 time every 5 ~ 7 days in summer and autumn, and the water exchange rate is about 10% of the whole pool. At the same time, pay attention to make the pH value between 7 and 8.5. If the pH value is too high, fresh water should be replaced; if it is too low, it should be adjusted with 15 ~ 20kg quicklime per 1000m2.

Extended data:

1, farm land

Farmland is the most basic condition for eel culture. If there is no suitable farm land, then don't talk about eel farming. Generally, eel breeding sites need at least 50 mu specifications. Secondly, the farm should be equipped with water injection system, drainage system, heating and cooling system and aeration equipment. At the same time, we should plan the eel pond.

2. Water quality requirements

Water quality is very important for eel culture, and the requirements for water quality are mainly manifested in these aspects. The first is the water temperature. Generally speaking, the water temperature is preferably 25 to 28 degrees, but the temperature is between 15 and 30 degrees. Secondly, the water quality should be slightly acidic, so that eels can be productive.

Then the oxygen content in the water should be sufficient, preferably between 5 and 12 mg per liter. In addition, the contents of calcium, nitrate, hydrogen sulfide, ammonia and iron in the water should be reasonable, neither too much nor too little, otherwise it will also affect the normal growth of eels.

3, bait requirements

Eels are carnivorous fish, so when we raise eels, we also have requirements for bait. If the bait is unreasonable, it will also lead to the failure of breeding. Generally speaking, we need to have enough earthworms or small insects and small fish. Secondly, farmed fresh fish can be ground with a meat grinder and then fed.

4. Breeding technology

Eel culture technology is an important condition for high yield and high income. The reason why many farmers fail to breed is that the breeding technology is unprofessional, and there are many problems in the breeding process, which eventually leads to a large number of eel deaths and heavy losses. Then before we breed eels, it's best to carry out professional breeding techniques and practical operations, and then breed them if there is no problem.

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