CATDOLL : CATDOLL: Can clams be kept in the refrigerator? How long can clams be kept in the refrigerator?

1. Can clams be kept in the refrigerator? How long can clams be kept in the refrigerator?

Yes, you can, but you need to heat it thoroughly in a pot before eating. It is "cold" and "cold", and people with bad stomachs should not eat it. When I was a child in the countryside, this was my only source of meat food, and I loved it.

2. How can clams be stored for a long time?

If you want to keep clams for a long time, buy some sea salt and add it to the water to keep the clams. In the summer, add some frozen mineral water and they can be kept for up to a week.

3. How to raise clams without dying?

Clam farming technology:

Farm selection criteria

The breeding farms for adult clams should be selected in the mid- and low-tide areas with relatively calm waves, smooth tides, flat terrain, more sand and less mud (sand content is 70% to 90%); the specific gravity of seawater is 1.010 to 1.025, and the most ideal specific gravity is 1.012 to 1.020; the flow rate is 40 to 100 cm/second.

Preparation and seedling planting

Seedling planting season:

The sowing season varies greatly depending on the size of the individual seedlings. White seedlings are generally sown in April and May; medium seedlings are mostly sown in December, but in some places, sowing is postponed to the spring of the following year due to cold weather; large seedlings are generally sown before egg laying.

Whole yard:

The main work of land preparation is to build embankments with Miscanthus near the harbor channel and the edge of the subtidal zone to prevent the loss of clam seedlings. The embankment is 30 to 40 cm wide and about 25 cm high. Large tidal flats should also be surrounded by embankments with Miscanthus and divided into several blocks for easy management. Then pick up the stones and debris on the surface of the land, fill the depressions with sand, and level the surface of the land. If the land is soft, it is necessary to dig drainage ditches to prevent water accumulation in the land. Finally, one week before sowing the seedlings, sprinkle the land with bleaching powder (15 kg/mu) or tea seed cake (8 kg/mu) to kill harmful organisms.

Seedling planting method:

There are two methods of sowing seedlings: dry sowing and wet sowing.

Dry seeding: When the land is dry after the tide recedes, unload the clam seedlings from the seed transport boats moored on the land. When sowing the seedlings, it is required to spread them evenly to prevent them from gathering in piles. If the tide has risen and it is impossible to continue sowing the seedlings or the sowing of seedlings is not completed, the clam seedlings should be unloaded and immersed in water until the next tide.

Because white seedlings are small and light, they are easily carried away by the tide and lost, so this method is often used for sowing seedlings.

Wet seeding: Wet seeding is to transport the clam seedlings to the marked land by boat before the tide has retreated from the pond, and then spread them evenly within the marked area. Seedlings should be planted at low tide or when the tide is slow to avoid loss of clam seedlings. The wet seeding method increases the seeding time, improves the work efficiency and the survival rate of clam seedlings, but the seeding is less uniform. This method is only suitable for the seeding of medium and large seedlings.

Seedling density:

Seedling density directly affects the growth rate and yield of clams. If the seedling density is too high, the clams will grow slowly; if the seedling density is too sparse, the cultivation area cannot be fully utilized and the yield per unit area is low. Therefore, it is necessary to master the seedling density that is suitable for each scale. The seedling quantity should be determined according to factors such as the size of the individual clam seedlings, the height of the tidal zone and the bottom conditions (Table 19-6): the larger the clam seedlings, the higher the survival rate and the less seedlings can be planted; in low tidal zones, the clam seedlings have a longer feeding time, grow fast and grow taller, and have more enemies and pests, so the clam seedlings are more vulnerable and should be planted appropriately; in land with hard bottom conditions, the stability is good and more seedlings can also be planted.

In addition, the amount of water should be increased or decreased according to the amount of bait organisms in the sea area and the flow rate.

Management work:

transplant:

The main purpose of transplantation is to shift the breeding tide area, disperse the breeding density and promote growth.

(1) Seedlings are enlarged and transplanted sparsely: The tide zone where seedlings are sown is high. After 6 to 7 months of cultivation, the individuals are significantly enlarged and the food intake increases. The stocking density is relatively too dense. At the same time, the clams' physical fitness gradually improves and their ability to adapt to the external environment is stronger. Therefore, they should be moved to a lower tide zone for stocking and the stocking density should be appropriately reduced to accelerate the growth of clams.

(2) Transplant in different seasons to improve the survival rate of clam seedlings: Based on the good thermal insulation of the mud layer, the clam seedlings are not easily frozen to death in winter, and the sand court has a large water storage capacity and low temperature, so the clam seedlings are not easily sun-dried to death in summer. With different seasons, they can be transplanted to different sites to improve the survival rate. The method of harvesting and transplanting can be adopted.

(3) Accelerate the recovery of the clams after spawning and promote growth by transplantation: After spawning and ejaculation, the clams are weak and have poor adaptability to environmental factors, which can easily lead to death. Therefore, before the breeding season, the clams should be transplanted to a place with low tide, abundant bait, and calm water to restore their physical condition and accelerate their growth.

Prevent disasters and enemies:

The main natural disasters that seriously threaten clams are floods and typhoons. In the dams that are vulnerable to typhoons, efforts should be made to harvest or transplant them to safe areas before the typhoon season arrives; similar measures should be taken in the dams threatened by floods; victims who are not harvested or transplanted in time must be rescued in time, the mud and sand covering the dam surface must be cleared, and the scattered clams must be collected to reduce losses.

The pests of clams and their control measures are as mentioned above. During the culture period, the ponds should be frequently cleaned to reduce losses.

Strengthen daily management:

After the seedlings are released, it is necessary to frequently inspect the ponds to check whether the seedlings have been lost, the growth rate and survival rate of the first-year clams, and the damage caused by enemies, so as to replenish the seedlings in time or take corresponding measures. At the same time, it is necessary to dredge the ditches, fill the pond surface, and repair the dams. Especially the parent clams that have just reproduced are weak and most of them float on the surface of the pond. If they are trampled by people, the mortality rate is even greater. Therefore, after the breeding season, management should be strengthened or transplantation should be carried out.