How do you raise sea crabs so they don t die? How to raise sea crabs will not die

The sea crab you bought should be put in a straw bale, wrapped tightly, do not let it crawl, and then put it in the refrigerator refrigerator, so that it is generally okay for a week. If the number of crabs is not too large, you can prepare a plastic bucket with a depth of more than 30 cm, and the inner wall of the bucket should be relatively smooth, which can prevent the crabs from crawling out and escaping. The crabs you bought must not be washed, they are easy to die when washed, just put the crabs in the prepared plastic bucket, the most important thing is not to let the crabs layer up, that is to say, only one layer of crabs can be placed.

After the crab is placed, add clean water, and the amount of water should reach just half the height of the crab's body, so that the crab's eight legs can be exposed to the surface of the water to breathe.

The main function of this water is to moisturize the crabs, and adding too much water will cause the crabs to lack oxygen and suffocate to death. After adding water, put the bucket in a cool and ventilated place indoors (you can't put the bucket in the sun, if necessary, you can use breathable gauze or cotton cloth to shade the light), do not cover, and change it with clean water once a day. Temporary crab breeding in this method is simple and practical, and when the temperature is not too high, it can even be stored for more than 5 days (the indoor temperature does not exceed 15), and the crabs will not die.

If the number of crabs is larger, you can use a larger plastic basin, or directly use a home bathtub.

Pond conditions (1) The area and water depth of the growing pond are mainly earthen ponds, the area can be large or small, and the water depth is required to be more than meters. When the area of a single pond is more than 10 acres, it is advisable to separate the pond with a plastic net to prevent the concentration of pike crabs due to changes in water temperature and water quality, resulting in excessive local density and mutual cannibalism. (2) The bottom of the pool is slightly inclined from one end of the inlet gate to one end of the drainage gate to facilitate the inlet and drainage.

The bottom should be sandy and muddy, the bottom of the pond should be more corrugated ditches, and the pond should be set up with hidden objects (such as waste pottery, stones, tiles, nets, bamboo, branches or waste woven bags with an appropriate amount of shells, etc.), as a hiding place for pike crabs (especially during the shelling period).

Note that the woven bags used must be cleaned. In ponds with too much mud, medium and coarse sand with a thickness of about 10 cm can be spread locally at the bottom of the pond to provide a better survival and growth environment for pike crabs. (3) There is no pollution source around the breeding pond, and the environment is safe.

4) Each flood can naturally absorb the tide for about 10 days, and is equipped with a water pump to ensure the best water source for breeding during the small tide. (5) Configure an appropriate amount of aeration equipment.

The activity ability of sea crabs is still relatively strong, many businesses will tie up sea crabs, in order to reduce the energy consumed by sea crab activities, if you don't eat them in time after buying them, you can tie them up and apply them to the surface with wet wipes, and then put them in the refrigerator. The temperature of the refrigerator is about 5-10.

1. Pond conditions for aquaculture: the pond area selected for breeding in the north is generally 10-20 acres of small and medium-sized ponds, and it is necessary to choose ponds near the sea area with sufficient water sources, no pollution, rich resources of small miscellaneous fish, shrimp and shellfish, and convenient intake and drainage. The depth of the pool should be more than 5 meters.

The bottom of the pool is better with sediment, and the bottom of the pool should be covered with sand about 15 cm.

2. Preparation before breeding:

2) Set up obstacles: In order to facilitate the rest and hiding of crab seedlings, when the pond is renovated, cement pipes, tiles, bamboo tubes and other obstacles should be placed at the bottom of the pond.

3) water and breeding bait organisms: half a month after the pond is cleared, you can open the smell of the water, in order to prevent some harmful organisms from entering the pool, you can use a 60 mesh sieve silk screen to filter seawater, the depth of the pool water is generally kept at about 80 cm, after the pond is flooded, fertilizer should be applied to cultivate bait organisms, - general n fertilizer in mu, p fertilizer is mu, and the transparency of the pool water should be kept at about 30 cm. The cleaning of the pond is main.

This includes the renovation of the pond and the cleaning of medicines. The renovation of the pond is carried out in late autumn after the crab harvest is carried out, and the pond water is drained and desilted and exposed to the sun. In the early stage of dredging, it is pumped with a mud pump, and in the later stage, it is leveled with a bulldozer, and a ring ditch is set aside along the perimeter of the pool, with a width of 2 4 m and a low beach surface of 30 40 cm.

Exposed to the sun for more than half a month, the bottom of the pond will be fully oxidized, and at the same time, the pond embankment, sluice, canal and other supporting facilities will be repaired.

Crabs will hibernate in winter as the temperature decreases, so it is best to prepare silt and sand in advance for it to hibernate. During hibernation, crabs do not eat, and it is best to give them a little water regularly during this period to keep the environment moist. Crabs that do not hibernate in winter can turn up the water temperature.

Crabs generally hibernate in winter as the temperature decreases, so you can prepare silt or sand for it to hibernate, or you can prepare a safe burrow for it.

Crabs generally enter the state of winter hand sleep below 10 degrees, and during this period it will not appear to eat, the owner only needs to regularly replenish it with a little water, keep the environment moist.

In order to avoid freezing to death, the crab that does not hibernate should be given a little higher water temperature, and it should also be given more high-calorie food, which can provide it with rich energy and effectively resist the cold.