CATDOLL : CATDOLL: How do sea cucumbers grow their internal organs back after throwing them out?

1. How do sea cucumbers grow their internal organs back after throwing them out?

After throwing out its internal organs, the sea cucumber can bounce back a certain distance with the help of a certain impact force. After about 50 days, it will grow a new set of internal organs and restore normal physiological functions.

It is said that some species of sea cucumbers not only have the unique skill of expelling internal organs and confusing enemies, but also have the ability to "split into two bodies" like starfish. If you cut a sea cucumber into pieces and throw it into the sea, after 3-8 months, each piece will grow into a complete living sea cucumber.

These characteristics of sea cucumbers are derived from their body functions and simple biological structure.

2. The Secret of Sea Cucumber Vomiting Intestines Essay 300 Words

The main reason for sea cucumbers to vomit their intestines is a stress response. Usually, it is a self-protection behavior because they are frightened or stimulated by the external environment. After a period of time, the intestines will grow back, which is similar to the gecko's tail breaking off.

Escape by expelling internal organs, this is a unique phenomenon of sea cucumbers, which is what we call vomiting intestines

When a natural enemy attacks, the alert sea cucumber will quickly eject its internal organs to be eaten by the enemy, and then escape without a trace with the help of the recoil force of the internal organs. This is called the internal organs function. Of course, a sea cucumber without internal organs will not die, and it will grow again in about 50 days. You can add some of your own words and organize them. It is very simple to write. Lao Yinjia from the sea cucumber team answered, I hope you will accept it, thank you

3. How to eat fresh sea cucumbers? How to process fresh sea cucumbers

How to eat fresh sea cucumbers How to process fresh sea cucumbers

There are about 1,100 species of sea cucumbers in the world, and about 140 species in my country. Most sea cucumbers are inedible. According to statistics, there are 40 edible sea cucumbers in the world. my country accounts for half of the edible sea cucumbers, reaching 20 species. According to whether there are conical fleshy thorns on the back of the sea cucumber, it is divided into two categories: "sea cucumbers" and "light sea cucumbers". Among them, "sea cucumbers" are mainly species of the family Stichopus, and "light sea cucumbers" are mainly species of the family Holothurian, Cucurbitaceae and Colocasiaceae. Sea cucumbers: The family Stichopus includes imitation sea cucumbers, plum blossom sea cucumbers, green sea cucumbers and flower sea cucumbers. Imitation sea cucumbers are also called gray sea cucumbers, sea cucumbers, gray sea cucumbers, sea mice, which are commonly known as sea cucumbers. It is 20-40 cm long, cylindrical, with 4-6 rows of irregularly arranged conical fleshy thorns (called warty feet) on the back; the ventral surface is flat, the tube feet are dense, and they are arranged in three irregular longitudinal strips, which are used to adhere to reefs or crawl. The mouth is located at the front, ventral, with 20 frieze-shaped tentacles, and the anus is on the back; the skin is sticky and slippery, the muscles are well-developed, and the body can be extended or curled. The size, color and number of fleshy spines often vary with the living environment. They like to live in the sandy seabed and rocky reef bottom with slow and stable water flow, no fresh water injection, and rich seaweed. They hide during the day and come out at night; they hibernate in summer when the water temperature is high; they excrete when the environment is not suitable; they have strong regeneration ability and can regenerate after being damaged or cut. Sea cucumbers are distributed in the coastal areas of Shandong, Liaoning and Hebei in my country. They are mainly produced in Qingdao, Weihai, Yantai, Dalian, Changshan Island, etc. The fishing season is from November to June of the following year, especially in June and December when the catch is the largest. July to September is the hibernation season of sea cucumbers. The body wall of sea cucumbers is thick and soft, and it is the best quality among sea cucumbers. It is known as the "crown of ginseng".

How to eat fresh sea cucumbers How to process fresh sea cucumbers

4. The sea cucumber's skin is peeling, its head is falling off, and its body color is black. What's going on? What can I use to restore it? (Greenhouse farming)

1. Sea cucumber skin disease is also known as "sea cucumber rotten skin syndrome". The disease is most likely to occur from December to March of the following year when the aquaculture water temperature is relatively low. The characteristics of the disease are: first, the disease is widespread, affecting all aquaculture areas; second, the disease develops quickly. Once the disease occurs, it quickly spreads throughout the pond, and the mortality rate can reach more than 90%, which can cause heavy economic losses. The main clinical symptoms are shaking the head and excreting, and the mouth is swollen and cannot shrink and close. As the disease worsens, the number of ulcers on the diseased sea cucumber increases, forming blue-white spots, the whole body ulcers, and the sea cucumber dies after autolysis, dissolving into a snot-like colloid, leaving a certain white mark on the attachment.

2. The "secret" to prevent and treat sea cucumber skin disease

According to the cause analysis of sea cucumber rot skin syndrome, through investigation, research, analysis and demonstration, the author believes that the only effective way to prevent and treat sea cucumber rot skin syndrome is to effectively control pond bottom pollution and add Chinese herbal medicine, vitamins such as Vc to the feed to improve the sea cucumber's own immunity.

Secret 1: Regularly add zeolite powder, activated carbon, clay, medical stone, etc. into the breeding pond, with a release amount of 100-150 kg per mu. Use the minerals' own micropores to absorb microorganisms and toxic substances such as ammonia nitrogen and hydrogen sulfide in the breeding water, and absorb the pathogens that harm the growth of sea cucumbers in the breeding pond and bottom sediment. It has a certain protective effect on alleviating the deterioration of water quality and reducing the degree of pollution at the bottom of the pond.

Tip 2: Regularly add quicklime powder, ecological protection agent and disinfectant to the breeding pond, add 20-30kg of quicklime powder per mu, add 100-200kg of ecological protection agent per mu, which can effectively isolate the pollution source at the bottom of the pond from the water body, form a thin isolation film at the bottom of the pond, and control the large concentration of toxic substances. It can also kill pathogens in the water body and have a certain cleaning and anti-inflammatory effect on the sea cucumber body. However, when adding quicklime powder, you must pay attention to the dosage and evenly sprinkle it, and try to reduce direct contact with the sea cucumber body. If it is not controlled well, it is easy to harm the sea cucumber body.

Tip 3: Add 1% antibiotics, 0.001% vitamin VC, 1.5% allicin or 1.5% three yellow powder Chinese herbal medicine to the feed to ensure the normal development and healthy growth of the sea cucumber body. According to the characteristics of sea cucumber rot skin syndrome, it often occurs under low temperature and no feeding conditions in winter and spring, and the onset often causes the reaction of excretion of internal organs. After excretion of internal organs, the sea cucumber loses the ability to eat and the opportunity to heal. Therefore, feeding medicated feed early before winter, adding antibiotics and Chinese herbal medicine to the mixed feed can increase the antibacterial effect in the sea cucumber body. Adding VC can promote the normal growth of sea cucumbers, prevent diseases, and have a certain detoxification effect, so that the sea cucumber can enhance its disease resistance in winter, so as to achieve the purpose of winter disease prevention in autumn.

Tip 4: Use mechanical water pumping or aerator regularly to increase the dissolved oxygen content of the pool water. Usually when there is no wind in the breeding pond, the dissolved oxygen stratification phenomenon in the water layer is serious, especially when winter turns to spring, the temperature gradually exceeds the water temperature, and the surface water temperature is higher than the bottom water temperature, which causes the water temperature stratification to form. The bottom 1-2cm water layer in the pool is often in anoxic state. When using machinery or turning on an aerator, vertical flow of the water layer can be caused. Water pumping or aerator should be turned on 2-3 times a day. Each aeration and internal circulation time should reach 2-3 hours, which will have a very good effect on oxygenation and disease prevention.

Secret 5: Regularly add biological agents and beneficial bacteria, and add 3 to 5 kg of photosynthetic bacteria, beneficial bacteria and other agents per acre. This can not only decompose organic matter such as feces, leftover bait and dead algae in the pond water, reduce the ammonia nitrogen content in the pond, but also make the aquaculture water clean. It is extremely important to improve the water quality and bottom environment, increase the immunity and disease resistance of sea cucumbers, prevent and reduce the occurrence and spread of bacterial and viral diseases, and inhibit the reproduction and growth of harmful algae and harmful bacteria.