CATDOLL : CATDOLL: What are the practical techniques for clams farming? How to raise them?

What are the practical techniques for clams farming? How to raise them?

In our daily life, we can often eat a variety of delicacies, and some people like to eat shellfish very much. Because these consumers think that shellfish taste very fresh and delicious. So today we are going to talk about clams because clams can be said to be a kind of food that everyone often sees, but the cultivation of clams actually requires certain techniques. So today we are going to talk about what the practical techniques for cultivating clams are and how to cultivate them.

The first thing to do when choosing a breeding site is to choose the right site. Clams should be farmed in areas with convenient transportation and far away from pollution. In very calm areas, the sand quality is relatively stable, and the sand content should be between 70% and 90%. It is best to choose a low-tide beach with very good water quality, which is suitable for breeding some aquatic products.

Precision breeding is secondly necessary, because areas that have been breeding a lot of clams need to be renovated every few years. All the mud and sand under the ground must be turned out, and then washed with water, and some microorganisms or debris can be removed after being exposed to the sun. Then the output of the clams can be guaranteed when breeding, and the sand is also very susceptible to sand washing by floods. Then the amount of sand will be reduced, so in order to prevent the sand from being washed away, it is necessary to build a clam pond, and to build dams and repair sluices in advance.

Pay attention to the transportation of clams. Finally, when raising clams, you also need to pay attention to the transportation of clam seedlings, and ensure that the clams are transported on the same day after they are harvested. This can prevent some damage during transportation, or some mutations of the clams. And when raising clams, you must ensure ventilation and keep the temperature low, so that you can ensure that the clams will not die during breeding.

The more practical breeding technology is to choose a very good breeding environment, scientifically breed seedlings, strengthen daily management, and prevent and control diseases. During the breeding process, the growth status of clams should be observed frequently, and the ponds should be disinfected frequently.

Most of them are seedling breeding. When purchasing suitable seedlings for breeding, you must pay attention to the feeding situation. Generally, the clam seedlings can be put in after four or five months.

The first thing is to choose a very suitable area, and then you must pay attention to the oxygen and oxygen in the water. You must choose clams with a higher survival rate. The breeding temperature should also be kept at around 18 degrees. Then you also need to change the water in time, and you must choose high-quality feed.

How to grow clams at home

(I) Selection conditions of breeding farms

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.

(II) Preparation and seedling planting

1. Seedling planting season: The seedling planting season varies greatly depending on the size of the individual seedlings. White seedlings are generally planted in April and May; medium seedlings are mostly planted in December, and in some places, due to cold weather and other reasons, the planting is postponed to the spring of the following year; large seedlings are generally planted before egg laying.

2. Land preparation: Land preparation mainly involves building embankments with Miscanthus near the harbor 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, drainage ditches must be dug 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.

3. Seedling sowing method: There are two methods of seedling sowing: dry sowing and wet sowing.

(1) Dry seeding: When the land is dry after low tide, unload the clam seedlings from the seed transport boats moored on the land. When sowing the seedlings, spread them evenly to prevent them from clumping. If the tide has risen and it is impossible to continue sowing the seedlings or if the sowing is not completed, unload the clam seedlings, immerse them in water, and wait until the next tide to sow them again.

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.

(2) Wet seeding: Wet seeding is to transport clam seedlings to the marked land by boat before the tide has receded from the pond, and then evenly spread the seedlings within the marked area. Seeding should be done at low tide or when the tide is slow to prevent the seedlings from being lost.

The wet sowing method increases the sowing time, improves the work efficiency and the survival rate of clam seedlings, but the sowing is less uniform. This method is only suitable for the sowing of medium and large seedlings.

4. 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 appropriate seedling density. The seedling quantity should be determined according to factors such as the size of the clam seedlings, the height of the tidal zone and the bottom conditions (Table 19-6): If the clam seedlings are large, the survival rate is high and less seeding can be done; if the tidal zone is low, the clam seedlings have a long feeding time and grow fast, and at the same time there are more enemies and pests, the clam seedling damage rate is high, so more seeding should be done appropriately; the bottom of the pond with hard soil has good stability and can also be sown more.

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.

(I) Selection of breeding farms Clam breeding farms should be selected in the middle and low tide areas with relatively calm winds and 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. (II) Preparation and seeding 1. Seeding season: The seeding season varies greatly depending on the individual size of the seedlings. White seedlings are generally planted in April and May; medium seedlings are mostly planted in December, and in some places, due to cold weather and other reasons, the planting is postponed to the spring of the following year; large seedlings are generally planted before spawning. 2. Preparation: The main work of preparation is to first build a dike with Miscanthus near the harbor and the edge of the subtidal zone to prevent the loss of clam seedlings. The dike is 30 to 40 cm wide and about 25 cm high. Large tidal flats should also be surrounded by reed dikes and divided into several blocks for easy management. Then pick up the stones and debris on the surface of the pond, fill the depressions with sand, and level the surface of the pond. If the pond is soft, ditches must be dug to prevent water from accumulating in the pond. Finally, one week before sowing the seedlings, sprinkle the pond with bleaching powder (15 kg/mu) or tea seed cake (8 kg/mu) to kill harmful organisms. 3. Sowing methods: There are two methods of sowing seedlings: dry sowing and wet sowing. (1) Dry sowing: When the pond is dry after the tide recedes, unload the clam seedlings from the seed transport ship moored on the pond. When sowing the seedlings, it is required to sow evenly to prevent them from clumping. If the tide has risen and sowing cannot continue or the sowing 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 seedling sowing. (2) Wet sowing: Wet sowing is when the tide has not yet retreated from the pond surface, the clam seedlings are transported to the pond ground with markings by boat, and then evenly sown within the marked range. Seedling sowing should be carried out when the tide is low or the tide is slow to prevent the clam seedlings from being lost. The wet sowing method increases the sowing time, improves the work efficiency and the survival rate of the clam seedlings, but the sowing is less uniform. This method is only suitable for the sowing of medium and large seedlings. 4. Seedling sowing density: Seedling density directly affects the growth rate and yield of clams. If the seedling density is too high, the clams 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 appropriate seedling density. The amount of seedlings to be sown should be determined based on factors such as the size of the individual clam seedlings, the height of the tidal zone, and the conditions of the bottom (Table 19-6): The larger the clam seedlings, the higher the survival rate, so less seeding is needed; in low tidal zones, the clam seedlings have a longer feeding time and grow faster, but also have more enemies and pests, and the clam seedlings are more vulnerable, so more seeding should be done appropriately; in areas with harder bottoms, the stability is good, so more seeding can also be done. In addition, the amount of seedlings should be increased or decreased as appropriate based on the amount of bait organisms in the sea area and the flow rate.

Use salt water with a concentration of about 3% (3g salt plus 100, the OP can adjust it by himself). Too low or too high will kill it. If possible, put some seaweed in the fish tank and change the water every three to five days. It can be kept for a long time.