How do earthworms reproduce? How earthworms reproduce

Earthworms are hermaphroditic, allogeneic fertilization, and when reproduction, egg cocoons are produced through rings to reproduce the next generation.

Earthworm, also known as earth dragon, is a terrestrial invertebrate of the oligochaete class of the phylum Annelid, earthworm is one of the annelids, there are more than 3,000 species of earthworms in the world, and there are more than 200 species in China. Earthworms can be used as a valuable medicine** for many diseases, and can also be used as high-protein food and feed. Earthworms dig holes to loosen the soil, decompose organic matter, create good conditions for the growth and reproduction of soil microorganisms, and play a special role in soil improvement, eliminating public pollution, protecting the ecological environment, in material cycle, biodiversity, etc.

How hermaphroditic earthworms reproduce offspring.

The upstairs guy may have accidentally made a typo ......Earthworms are not dioecious, but hermaphroditic, each single individual has two sets of reproductive systems, but allofertilization is required to complete sexual reproduction, because the sexual cell maturity period of a single individual will be different, so it must be mated between different individuals to complete insemination. In the case of a broken body under the action of an external force, it can be regenerated.

In addition, it has been reported that ringworms can reproduce asexually from auto-laying cells into new individuals without insemination.

Earthworms are dioecious, allofertilized, which is sexual reproduction.

Of course, earthworms can be regenerated into two or three earthworms due to accidental body breaking, which is asexual reproduction.

Asexual reproduction also includes parthenogenesis in ringworms.

In nature, earthworms breed mostly in August to October. 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 3 eggs secretes mucus to wrap several eggs together to form ten vermicoons, and one earthworm can produce many vermicoons. The vermicoon is mostly oval, generally only half the size of a mung bean, and the wall is hardened by mucous membranes, which is thin and soft. The cocoons are buried in the soil and hatch into young worms when the temperature is right.

If it is allowed to hatch in situ, not only the hatching rate is low, but also the hatching of young worms and adult worms is mixed and grown, which is not conducive to feeding management. Therefore, vermicoons should be collected and hatched separately. When collecting vermicoons, place new bait at a distance from vermicompost and old bait.

After two days, most of the earthworms will be led to the new bait to feed. At this time, the soil layer at the old bait can be dug up, and the vermicoons and vermicompost in the soil can be collected and removed.

The collected mixture of manure and cocoons should be stacked in clay pots, mixed with moist soil, covered with wet straw, shaded and insulated, and waiting for the cocoons to hatch. 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.