How old can earthworms live in total, and how many earthworms reproduce in a year

The lifespan of earthworms often varies depending on their species and ecological environment. The lifespan of an earthworm is calculated, generally from the beginning of ontogeny to the end of the individual's life. That is, from the young worm breaking out of the cocoon to the natural death of the earthworm, it includes all stages from the young worm to sexual maturity, full maturity, senescence and death.

Different species of earthworms have different lifespans. Generally, the lifespan of earthworms in the breeding state is higher than that of earthworms living in natural conditions in the wild. The lifespan of ortho vermicombs in the field is about 4 years, whereas in captivity, the lifespan of long-term vermicombs can be as high as 10 years and 3 months.

The lifespan of the worm is about 15 years under the condition of captivity, from the occurrence of sperm eggs, mating insemination, ovulation, fertilization, 7 to 10 days to produce vermicoons, 14 to 21 days after hatching of young worms, 3 to 4 months after sexual maturity, the ring begins to appear, 1 year later it is fully mature, after the year begins to senescent, the ring disappears, after which it is senescent, and after 15 years it dies. The disappearance of the earthworm ring marks the end of the earthworm reproduction period, and the aging begins, at this time, the earthworm's weight decreases, and the various organs, system structures and functions also appear, and over time, it finally dies due to physiological aging. Of course, earthworms often die in nature due to various natural enemies, diseases and harsh environments, so the lifespan of earthworms in nature is generally much shorter than that under artificial breeding conditions.

Earthworms can live up to 3-5 years, and Australia's largest earthworm can even live up to 20 years.

1 poundEarthwormsBreeds 12 times a year. Under the condition of suitable climate and sufficient fertilizer, 1 kg of earthworms can reproduce about 2000-3000 a year, and the life span of adult earthworms is about 1-3 years. Earthworms generally mate in an allogeneic manner, with parthenogenesis in some species.

Except in cold winters or arid places, earthworms can reproduce.

1 kg of earthworms can reproduce 12 times a year, depending on temperature and soil moisture. Earthworms, also known as earth dragons, are terrestrial invertebrates of the phylum Annelids.

Earthworms are rich in nutrition, rapid reproduction, miscellaneous diets, and high yield in artificial breeding. Economic benefits.

Good. Earthworms can be used as a valuable medicine** for many diseases, and can also be used as high-protein food and feed. The annual yield of fresh earthworms per mu is about 2-3 tons, and the maximum can reach 5 tons.

Under artificial culture conditions, if the soil temperature and humidity are suitable and the bait is sufficient, it can reproduce all year round. After mating, earthworms generally begin to ovulate in 7 to 8 days. Each row of 1 5 eggs secretes mucus to wrap several eggs together to form ten vermicoons, and one earthworm can produce many vermicoons.

Generally at 20 o'clock, after about 20 days, it can hatch into a young worm. After the young worms hatch in large numbers, they are lured together with high-quality bait and put into new culture vessels for rearing. Generally, 30-35 days is fine**.

The growth and development cycle of earthworms is closely related to factors such as temperature, density and humidity. Growth can be carried out by increasing or enlarging the somites continuously, usually for 3 to 4 months.

The growth cycle of Beixing No. 2 and Daping No. 2 is generally 47-128 days, and some varieties have a longer growth cycle, up to 140-180 days. Earthworms start from the cocoon of the worm and go through five stages: hatching stage, young vermitry stage, vermisite stage, adult stage and senescence stage.

The growth cycle is an average of 3 monthsIt takes about half a year to grow to about 10 cm in a good growth environment! Earthworms are thermophiles, and wild earthworms burrow into the soil layer to dormant during prolonged drought, severe winter and high temperature seasons. To raise earthworms in captivity, the temperature should be adjusted so that earthworms can grow and reproduce throughout the year.

The optimum growth temperature for red earthworms is around 25. Earthworms are hermaphroditic animals but must be allomated. Sexually mature earthworms (i.e., growth rings) lay eggs 1 week after mating. But the frequency of spawning has a lot to do with temperature.

Environmental requirements. 1. Temperature.

Generally speaking, the activity temperature of earthworms is 5-30, 0-5 enters a dormant state, dies below 0, the optimal temperature is about 20-27, and it is also the optimal temperature for cocoon eggs, stop growing when it is above 32, and die when it is above 40.

2. Humidity. Earthworms use ** to breathe, so the earthworm body must be kept moist, the earthworm's body water accounts for more than 75% of the body weight, preventing water loss is the key to the survival of the earthworm, so the humidity of the feed should be kept at about 70%.

If the earthworm is cut off from the middle, two more earthworms can be spawned each. If cut off from near the back end, only the front end will be able to spawn a full earthworm.

The internal structure of the earthworm is repeated and repeated. If you cut exactly to the part that separates the repetitions, then both sections will survive.

Earthworms themselves are eukaryotic cell organisms, to be precise, they may not grow into two, earthworms are a relatively higher kind of annelids, the structure is more complex than many annelids, and the digestive system and circulatory system appear, which is the premise for the development of vertebrates. If there is too much blood loss during cutting, it may not be able to become two, and there are many external factors that can affect its growth.

If it is under the conditions of temperature, pH and sterilization, it is possible to survive, just like the tissue culture of plants, of course, cutting off earthworms and tissue culture is not a principle, but the lower the expression of the organism, the greater its ability to develop into an identical independent individual.

Earthworms can only live if they have a reproductive belt, which is the white ring on their neck, and the other half will definitely die.

I'm the same as an earthworm, how many cuts do you think is appropriate?

This depends on the climatic factors of your breeding area, management methods, breeding density and many other factors. My outdoor breeding season in the northeast is from the end of April to the middle of October, about 6 or 7 months of breeding time every year, the normal annual reproduction is one pound of breeding eight catties, and the maximum breeding density of one acre of land is 1,500 catties to 2,000 catties.

Earthworms prefer warmth and humidity. Under natural conditions, it is generally able to reproduce in the warm season, except in severe winters or droughts. Under the conditions of captive breeding, it can reproduce all year round.

Earthworms lay their cocoons from the time they lay their eggs to the time they mature and begin to lay eggs as a reproductive cycle, and their growth and development have a lot to do with environmental conditions.

The optimum growth temperature for red earthworms is around 25. Earthworms are hermaphroditic animals but must be allomated. Sexually mature earthworms (i.e., growth rings) lay eggs 1 week after mating.

But the frequency of spawning has a lot to do with temperature. When the temperature is lower than 10, it takes about 35 days to lay an egg; When the temperature is 18 25, the humidity is 30 50, and the ventilation is good, one egg is laid every day; When the temperature is high.

At 35, the number of eggs laid decreases. Cocoon hatching also has a lot to do with temperature. When the temperature is lower than 8, the egg cocoon stops hatching; At 15 o'clock, the egg cocoon hatched the larvae in about 33 days, the hatching rate was 97, and the average hatching of the larvae in each egg cocoon was 97. When the average temperature is 20, the larvae hatch in 19 days; At 32 o'clock, it can hatch in 10 days, but the hatching rate is only 33, and the average hatching of 2 3 larvae in each egg cocoon.

<> earthworms generally live for one to several years, and some normal earthworms can live for up to 6 years, and generally mature after one year. The lifespan of earthworms often varies depending on their species and ecological environment, and the lifespan of different species of earthworms also varies.