How do silkworms molt? Why molt?

Nowadays, many people do not know much about silkworms, and now we rarely see silkworms in our lives. But it was different before, in ancient times there was a trend of raising silkworms, when every household raised a lot of silkworms, but the silkworm itself is a kind of insect. When the silkworm first begins to shed its shell, it is cracked from the back, and when it is cracked, the opportunity to slowly fall off, and the reason why the silkworm wants to shed its shell is because the silkworm itself has to go through a process of growth.

Now we rarely see people raising silkworms, through the relevant explanation of silkworms on TV, silkworms belong to a kind of insects, his growth is different from us humans, the growth of human beings is the gradual growth of the body, silkworms we all call shells, and we humans have no shells. We see the silkworm shelling, first of all, the back of the silkworm begins, the silkworm itself has some protruding soft burrs, when the skin on its back is cracked, after a period of time, these skins will slowly fall off, when the original skin falls, the new skin will slowly grow out.

We all know that the silkworm that has just come out of the silkworm egg is black, looks like a caterpillar, and has no silkworm appearance at all, but when the skin on its body is replaced, the chance will turn white, and its feet will become much sharper than before, and it can catch silkworm leaves. The reason for silkworm shelling is that silkworms, like us humans, have to go through the growth stage of the body, but in a different way. The silkworm is to shed its shell because it has a hard shellThis layer of skin has an obstructive effect on the release of substances in the silkworm's bodyThe poison cannot be excreted from the body, which seriously affects the growth of silkworms, so silkworms will shed their shells when they grow.

The growth process of the silkworm has to go through several shelling, but every time the shelling will find that the silkworm has a great change, it will look much larger than before, especially the color of the surface cortex will become whiter and whiter, when you touch it with your hands, you will find that the feel is getting better and better, and it is full and vicious than before.

After eating mulberry leaves, they grow very fast, and the outer shell gradually falls off when it can't wrap it, and the body turns black means that it is about to fall off. Because to grow up, the shell is equivalent to its clothes, and when a person grows up, the clothes will not be able to wear when they are small, so the silkworm is the same, and it needs to molt its shell to wrap its grown body.

When the silkworm's body grows slowly and is restricted, it sheds its skin. The epidermis of the silkworm cannot grow with the growth and development of the silkworm during the growth and development of the silkworm.

During the growth and development of silkworms, the epidermis cannot grow as the body grows. When the growth of the silkworm's body is restricted, the silkworm has to shed its skin. Silkworm molting process: The silkworm raises its head, does not eat or move, which is called "sleep", and the silkworm sheds its skin from the beginning and slowly falls back.

The molting of silkworms is very simple, basically one night silkworms will complete the transformation from juvenile to adult, molting for sexual maturity.

Silkworms do not molt, they molt, and at the right time, they will molt and molt from the beginning and slowly shed their whole body. will leave a skin in place.

The process of molting silkworms is as follows:Stage 1: Preparation.

When molting, the silkworm raises its head and does not eat or move, which is called sleep.

Phase 2: Start.

A small yellow dot on the head of the silkworm indicates that the molting work has begun.

Stage 3: Molting.

The silkworm sheds its skin from the beginning and slowly falls backwards until it detaches.

Stage 4: Recuperation.

After the molting is complete, it also needs to rest for several hours before it can start eating mulberry leaves again.

Habits. Silkworm.

Originated in China, its development temperature is 7 40, and the feeding temperature is 20 30. Silkworm.

Living on mulberry leaves, the body turns white after eating mulberry leaves, and after a while, it begins to peel. When the skin is peeled, you don't eat or move for about a day, which is called "dormancy".

After a peel, it is a second-instar larvae. Even if it sheds its skin once and increases its age by one year, the larvae have to shed their skin four times to become a fifth-instar larva, and then eat mulberry leaves for 8 days to become a mature silkworm and begin to spin silk and form cocoons.

Stage 1: Preparation. Phase 2: Start. Stage 3: Molting. Stage 4: Self-cultivation.

Because if a silkworm wants to grow up, it must go through the process of molting until it becomes a pupa and finally becomes an adult.

In many arthropods (mainly insects) and reptiles, the old epidermis is shed during growth and replaced by a new one. Usually it grows a little bit after each molt.

Because it needs to grow, in the later stage of embryonic development, from one insect state to another, or the same insect state has a previous instar and a later instar, (silkworm molting belongs to the latter) must pass a molt. The number of molts varies depending on the species of insect, with silkworms molting four times. In fact, the phenomenon of molting is very common in the insect world, (such as maggots from flies) The "skin" of the silkworm is actually its exoskeleton.