CATDOLL : CATDOLL: How to cultivate sea cucumbers and what conditions are required?

1. How to cultivate sea cucumbers and what conditions are required?

Cofferdam pond building

According to the requirements of the healthy breeding project of sea cucumbers, it is necessary to build a pond by throwing stones to

A standard pond of 80 acres is built in the form of stone reefs.

A total of 18,000 m3 of stone was poured to build a healthy sea cucumber breeding experiment with an east-west orientation, semi-tidal type, and convenient water inlet and outlet.

To facilitate pond cleaning, the pond is built in a ridge-like pattern, following the “leek”-shaped framework.

The reef is 2.5m wide and 1.2m high, with a total length of 3580m. The west weir of the pond is adjacent to the sea, with two high and low inlet and outlet gates. The low gate is used for clearing the pond and draining water, and its gate base is level with the lowest tide level. The base of the high gate is half

If the tide level is difficult, the tide difference can be used to naturally absorb the tide into the pool. Both the upper and lower gates can be controlled manually. In addition, special water inlet and outlet pump units are installed near the sea weir.

1 set for emergency use. After the pond is built, use the low gate to release the pond water at low tide, and pump out the rest of the water to remove gobies, Japanese yam, starfish and other stinging fish.

Level the pond bottom and spread 70kg lime powder per mu for disinfection. 1 week

After that, 1000kg of fermented chicken manure is applied per mu, the water inlet is 50cm, and the fertilizer water is applied for 60 days. After the water quality is stable and the benthic diatoms in the pond have reproduced in large numbers, the sea cucumber seedlings are put in.

Seed source and placement

Sea cucumber seedlings come from natural capture and artificial cultivation. The size of naturally captured seedlings varies, generally 3 to 10 cm in length.

After 3～

After 5 days of temporary rearing, the sea cucumbers are graded and screened, and the injured and disabled sea cucumbers are quickly put into the breeding pond. Artificially cultivated seedlings are all cultivated in the middle, and are put into the pond when the sea cucumbers are more than 5 cm long.

Feeding and management

After the sea cucumber seedlings are released, they enter the breeding and management stage, and their main tasks are

Do a good job in feeding feed and regulating daily water quality.

Feeding: Feed the culture pond evenly every 2 days, including 50% starch, 20% sea mud, 8% fish meal and 22% seaweed meal.

The amount of feed is about 10% of the total amount of sea cucumbers in the sea area.

The fish are stable and have abundant bait. Piles are built and rafts are set up along the artificial reefs in the pond.

Kelp and wakame, and at the same time transplant algae such as giant kelp and sargassum into the pond to create a good habitat for the healthy cultivation of sea cucumbers.

Disease prevention measures: To prevent the occurrence of diseases, use disinfectant once every half a month and spray it throughout the pond during low tide, which can have a good disease prevention effect.

Water quality control To prevent floating garbage and floating oil from entering the pond with the tide and polluting the water, three floating raft-type pollution and oil prevention nets are set up in the water inlet channel.

Intercept floating garbage and oil pollution. The technicians observe the water quality in the pool every day, and conduct water quality tests every 7 days during the high temperature period.

Depending on the weather, start the water pump in time to transfer water into the pond to prevent the salinity of the pond from decreasing and seawater from desalination.

Temperature control, oxygenation

The high temperature season in Longkou is from mid-July to early September every year. From 11:00 a.m. to 3:00 p.m. every day, the farmers use 8-horsepower fishing boats to regularly sail and surf in the pond at high speed to increase oxygen and reduce temperature, so as to prevent the sea cucumbers from suffocating and dying due to lack of oxygen.

：Sea cucumbers are now a delicious dish on the table, and their breeding technology is no longer a mystery. The most important point in sea cucumber breeding is to provide good and comfortable conditions and keep them away from the harassment of natural enemies. 1. Pond weaving cloth to build reefs

Use a woven cloth with a width of 8m and a length equal to the pond to sew it into pieces, lay it flat on the bottom of the pond, and press it down with stones; cut waste foam into small pieces of 5cm×8cm as floats to float the woven cloth...

2. What kind of work does it involve to raise sea cucumbers?

There are two main ways to cultivate sea cucumbers now. One is to cultivate sea cucumbers in natural sea areas, and the other is to cultivate sea cucumbers in ponds. Sea cucumbers cultivated in ponds require very strict conditions such as seawater temperature, salinity, and food. If fresh water and sea salt are used on land, the problem of sea cucumber enemies and large-scale disease transmission can be solved. In addition, the problem of short-term seawater pollution and inability to change water can be solved. However, the cost of replacing seawater is very high, and a backup pool is required. Every time the water is changed, water must be stored and cultivated in the backup pool. If the backup pool takes a month to cultivate the water, and the cultivation pool needs to change water once every half a month, this is difficult to solve, and the equipment investment is large. However, it is possible to consider fine cultivation of sea cucumbers, such as adding a greenhouse to the pond (with insulation nets in summer and film insulation in winter) to control the temperature. The main consideration is the cost of cultivation and whether the input and output are proportional.

3. When raising shrimps in a sea cucumber pond, is it good to see the shrimps during the day?

Is it good to see shrimps in the sea cucumber pond during the day? It should be bad. The shrimps must be lacking oxygen in the pond. That's why they float on the surface. Or maybe it's because the weather is very hot and stuffy.

It’s also nice to see shrimps in the summer.

4. How to improve the water quality in the sea cucumber pool if the water cannot be changed for a long time due to some reasons! ! ! ! ! ! Please answer this question

Dilute. Change slowly.