How much is the big head fish per jin? How many jin can you gain in a year? How much is it per mu? What are the breeding techniques?

Big-headed fish, also known as bighead carp, silver carp, fat-headed fish, black silver carp, yellow silver carp, pine fish, carp, bighead silver carp and whale, is one of the four famous domestic fish in China. So how much is it per jin? How many jin can you gain in a year? How much is it per mu? What are the breeding techniques? It is learned from the Mawangdui vegetable Wholesale Market in Changsha, Hunan that the current price of giant fish is about 15.5 yuan / kg.

How many jin can the big head fish gain in a year?

The growth rate of big head fish is faster than that of silver carp. Individuals of more than 10 kg can usually be seen in natural rivers and lakes, with the largest being up to 50 kg. It is suitable for farming in fertile ponds. Under the condition of adequate feed, 1-year-old fish can weigh up to 0.8-1 kg. The age of sexual maturity is the same or earlier than that of grass carp. The weight of early mature individuals is more than 10 kg in most areas, but in Guangdong and Guangxi, parent fish with less than 10 kg can also lay eggs. The spawning season is mostly from the beginning of May to the middle of June, and other reproductive ecological conditions are roughly the same as those of silver carp.

How much is the big-headed fish per mu?

Generally speaking, there are no more than 100 large-size fish per mu, and it is best to buy more than 1 kg of sub-commodity-sized fish when the bighead carp price is low before the Spring Festival, and feed them with special materials for bighead carp. In the coming summer, large-sized commercial fish of more than 2.5 kilograms can be grown earlier and listed on the market; if fertilizing is given priority to, and bran is used as a supplement, it is easier to develop a specification of about 2 kilograms. After the adult fish are on the market, the vacant Tangkou can raise another season of fish. Of course, if the source of the large size bighead carp is convenient, the next round of production can be carried out immediately, so that it can produce two or three seasons a year. Although the output of this stocking mode is not high, the investment is not large, and the benefit is very stable.

What are the culture techniques of big-headed fish?

1. Stocking of seedlings:

In the past, the stocking specification of bighead carp in lakes and reservoirs was generally about 13.2 fish. Under modern technical conditions, 0.15 kilograms per fish or even 1.0kg large fish species were required.

2. Stocking time:

It should be done in winter or early spring when the water temperature is 5-10 ℃. At this time, it is conducive to the high-density transportation of fish species, which can reduce the casualties in transportation; the activity ability of fish species and ferocious fish is weakened, and the harm of ferocious fish to free-range fish species is also relatively reduced.

3. Stocking place:

Should choose in the upstream of the reservoir shallow water, shelter, sunny fertile reservoir bay. In this way, far from the spillway and spillway in the lower reaches of the reservoir, the escape chance of stocking fish species can be reduced, the adaptation time to the large water surface environment can be shortened, the growth can be accelerated, and the survival rate can be improved.

4. Stocking weather:

You should choose a sunny day, not a windy, snowy or frozen day.

5. Quarantine and disinfection:

Fish disease quarantine and fish seed disinfection must be carried out before fish fingerling are put into storage. It is strictly forbidden to put fish species with infectious diseases into the warehouse.

6. Careful operation:

After the long-distance transportation of fish species to the reservoir, the reservoir water should be slowly added to the fish container, and then the fish species should be slowly put into the reservoir when the temperature difference between the container water and the reservoir water is small. After releasing the fish species, the stocking personnel should also stand on the edge of the reservoir or on the boat, gently stir the reservoir water with oars, and slowly drive the fish species to swim to the big water surface.

Attached: nutrition analysis of silver carp

Silver carp can provide rich glial protein, that is, fitness and beauty, so it is an ideal food for women to nourish their skin. It is effective for rough skin, desquamation, hair loss and other diseases, and it is a delicacy that can not be ignored in female beauty. For nourishing qi, warming stomach and moisturizing skin, it is suitable for deficiency and cold constitution of spleen and stomach, defecation and dry skin, and can also be used for breast deficiency caused by qi deficiency of spleen and stomach.

Silver carp is suitable for people:

The general population are edible, spleen and stomach heat should not be eaten; pruritus dermatosis, internal heat, urticaria, tinea should be avoided.

Dietotherapy of silver carp:

Silver carp tastes sweet and warm, entering the spleen and stomach meridian

It has the effect of invigorating spleen and replenishing qi, warming stomach and dissipating heat, especially suitable for consumption in winter.

It can treat spleen and stomach weakness, loss of appetite, weakness, diarrhea and other symptoms; it also has the effects of warming stomach, tonifying qi, moisturizing skin, black hair, beauty and so on.