Culture techniques of mackerel

It is a mollusk in shellfish. It is mainly produced in coastal areas of China and Japan. It is one of the main cultured shellfish in China. It has rich nutrition and high market benefit. We have all eaten it, but do you know how it is raised? Next, let's take a look at the breeding techniques of oysters on the pro-agricultural network.

1. Selection of breeding site

Aquaculture chooses to be in the middle and low tide areas, the inner bay or estuaries are flat and slightly inclined, which requires that the tidal current must be smooth and calm, and can also be cultured in ponds. Oysters grow 30 centimeters below the sand layer, so they have higher requirements for sediment, preferably a few centimeters of soft mud on the surface, mixed with sediment in the middle, and sand in the lowest layer. At the same time, it also has very strict requirements for water quality, requiring that the specific gravity of sea water is between 1.010 and 1.025, suitable for the growth of water temperature 3-32 degrees, prefer weak alkaline water, pH 8.01-8.15.

2. Takata arrangement

After selecting a suitable breeding site, it is necessary to sort out the paddy field, first of all, rake the soil and plough the site, turn the hard area deeply, and then rake fine and straighten the equal steps to make the soil soft and suitable for the growth of oysters. Before sowing, disinfect and sterilize the seedlings, sprinkle them in the water with bleach, drain the water about 2-3 days later, and then use tea seed cake to eliminate the small fish, shrimp and snails in the field to prevent them from eating the seedlings.

3. Sowing seedlings

The sowing time is slightly different between the north and the south. The temperature in the south rises quickly, so the seedlings can be sowed before Ching Ming Festival in April, while in the north, the seedlings will be sowed in late May. Before sowing seedlings, first use wooden buckets or plastic buckets to hold the seedlings, and then wash the sediment with sea water, and then sow the seedlings. The seedlings can be sowed by throwing and sowing. Throwing sowing is suitable for the wide field of Chengmian, gently pick up the seedlings and sprinkle them on Chengmian, when there is no wind, several people can cross-sow, and when there is wind, it conforms to the wind, while sowing adapts to the narrow field of Chengmian, and gently grabs the seedlings and spreads the seeds to Chengmian.

4. Management of Chengcheng

After sowing seedlings, we should strengthen the management of Chengcheng, make regular inspections, check the growth rate of the seedlings, and carry out timely replenishment and corresponding measures. It is hot and hot in summer, and the heat dissipation of Chengcheng mud is poor, which is not conducive to the growth of mackerel, so it is necessary to adjust the temperature in Gaza to make it in a suitable growth environment. Gaza time before June, generally 1.5 tons per mu of Gaza, Gaza is required to be evenly scattered on Chengmian, in addition, during the storm, we should pay attention to the accumulation of soil and move the silt to other areas in time. In the management of Chengcheng, we should also pay attention to the prevention and control of natural disasters and biological enemies, so as not to cause huge losses.

The above are the breeding techniques of mackerel brought by pro-agricultural network, which can be harvested and sold when they are stocked from May to July and grow to about 5cm. It has the characteristics of low culture cost, short growth cycle, high yield and good income, so it is suitable for culture in coastal areas of our country.