Culture techniques of freshwater fish

The first step in freshwater fish culture is to clear the pond and dry the fish pond for half a month, then disinfect and add water; the second step is to put in fish fry and select high-quality fish fry, which should be disinfected before release; the third step is to feed ryegrass in addition to special feed; the fourth step is to prevent fish disease and do a good job of disinfection and disinfestation.

Freshwater fish culture species:

1. Grass carp

One of the four major domestic fish in China, a typical herbivorous fish. It grows rapidly and has a wide range of feed sources, so it is the main object of freshwater fish culture in China. Because of the special habits of grass carp, it was transplanted to all parts of the world as pioneers.

two。 Carp

It is one of the freshwater fish with the most species, the widest distribution and the longest culture history. It is resistant to cold, alkali and hypoxia, and has strong adaptability. It is a kind of omnivorous fish.

3. Crucian carp

Crucian carp is a common freshwater fish, eating miscellaneous, mainly to water plants and plankton for food, because its fish is rich in trace elements and minerals, quality and cheap, so it is a delicacy on the table, has a strong adaptability.

4. Silver carp

Silver carp, also known as silver carp and silver carp, is one of the four major fish families in China, and it is a typical food-worrying fish. they are similar to bighead carp in shape, grumpy and good at jumping. They are a kind of freshwater fish suitable for culture, with delicious meat and rich nutrition. Loved by people.

5. Black fish

The black fish is ferocious, has a strong fecundity and has a huge appetite. It can eat other fish around, sometimes even its own young fish. It has a strong ability to survive and can leave water to find food. It can stay away from water for up to three days, but it is a delicacy on the Chinese dinner table. At present, the profit of black fish culture is high, and the scope of black fish culture in China is becoming larger and larger.

The technology of freshwater fish culture is not difficult, but the selection of culture species and fattening are the factors that have great influence on the benefit of freshwater fish culture. Therefore, before breeding freshwater fish, farmers must understand the market situation, master fattening techniques, and ensure the maximization of benefits.