Silkworms have to go through several molts, and silkworms have to molt several times in their lives

Silkworms have to molt six times in their lives, namely ant silkworms, second-instar silkworms, third-instar silkworms, fourth-instar silkworms, fifth-instar silkworms, pupae and moths. From the birth of the silkworm to the silkworm spinning silk cocoon, a total of four molts, and then in the cocoon.

Perform another molt, as well as by silkworm pupa.

To the moth for the last molt.

1. Silkworms do not eat or move when they sleep, the surface is sleeping, but in fact they take off the old skin and replace it with a new skin to continue to grow.

2. The sleeping period of silkworms lasts about one day each time.

3. Silkworms generally begin to form cocoons in about 25 days, and when the back of the silkworm is shiny and shiny, yellowing and transparent, it means that it is going to spin silk and form cocoons, and then it is necessary to provide a cross space for silkworm babies.

Cocooning. It usually takes two days to form a complete cocoon and complete the last molt in the cocoon to become a pupa.

4. Male and female silkworm moths.

Copulation is carried out shortly after the cocoon breaks, and the female moth can lay 400 eggs in 4 to 5 hours after mating, and then slowly die.

5. Silkworms reproduce with eggs, silkworm eggs look very much like fine-grained sesame seeds, about 1 mm wide and about mm thick, a female moth can produce about 450 500 silkworm eggs, weighing about 1 gram.

Silkworms go through 4 molts in their lifetime, and 4 times in the larval stage.

The life of the silkworm: 1. The period of silkworm eggs: The silkworm eggs grow very small, and the newly born silkworm eggs are pale yellow and slightly oval.

2. Incubation period: After about a week, the eggs hatch into larvae, and the whole body is covered with black hair, which looks very much like ants, so it is called ant silkworm.

3. Adult silkworm period: silkworms shed their skin once every seven days, and once they shed their skin, they are called the second instar; The second time of peeling is called the third instar, the third time of peeling is the fourth instar, the fourth time of peeling is the fifth instar, and then it forms a pupa after that.

Fourth, the silking period: after four times of peeling, after Ziyu becomes a fifth-star silkworm, the body color of the silkworm will turn yellow and transparent, tight, and do not like to eat mulberry leaves, which means that it is ready to cocoon silk.

Silkworms molt a total of six times in their lifetime. The period of molting from the silkworm sedan chair is one instar, and after molting, it is the second instar larva. After molting again, enter the third instar.

After the fourth molt, enter the fifth instar. The fifth-instar silkworm will begin to form cocoons, and it will molt four times from the birth of the silkworm Nianliang to the spinning of the silk cocoon. However, it will molt once to become a pupa and then molt, so that the silkworm will molt a total of six times in its lifetime.

<> common saying is that silkworms molt four times in their lives, from the birth of silkworms to the silkworm spinning silk cocoon a total of four times, but there are still silkworm molts in the cocoon, as well as a molt from silkworm pupae to moth. Therefore, silkworms have a total of six molts in their lifetime. The sequential phases are:

Ant silkworm - second instar silkworm - third instar silkworm - fourth instar silkworm - fifth instar silkworm - pupal - moth.

Silkworm is the larva of silkworm moth, the main raw material of silk, and has an important position in human economic life and cultural history. Native to northern China, the staple food is mulberry leaves, which can also be supplemented with goose vegetables. The cocoon is made from a continuous silk with a length of 300 900 m (1000 3000 ft).

Silkworm insects and pupae are edible and have therapeutic effects. The adult moth cannot fly, it is also called"Silkworm moth", which is only used to lay eggs to reproduce offspring, and dies after laying eggs. Because of its long history and economic importance, the genes of silkworms have become an important object of modern science.

It doesn't matter, I also have silkworms in my family, and the silkworms in your family are male and grow slower. Don't worry, it'll be fine. I promise!

Silkworms have to molt a total of 4 times in their lifetime.

After the silkworm swims and feeds on mulberry, the larvae grow rapidly, under suitable temperature conditions, a silkworm from hatching to spinning silk cocoon, about 6-9 days to molt a skin, a total of about 24-32 days, about 20-30g of mulberry leaves (dry matter, generally after four sleeps and molting, to the extreme growth, the weight increases by about 10,000 times. Spinning silk and forming cocoons is an instinct of the silkworm to adapt to the environment and survive.