The that comes out of the egg is the larva of the silkworm, and is the adult of the silkworm.

The larvae that come out of the eggs are the larvae of the silkworm, and the (silkworm moth) is the adult of the silkworm. The life of the silkworm has gone through (four stages of egg, hatching, pupa and moth).

There are four forms of silkworms in their life, which are silkworm eggs, ant silkworms, silkworm pupa, and silkworm moths.

1) Silkworm eggs: Silkworms reproduce with eggs. The embryo in the fertilized egg continues to take in nutrients during the development process, and gradually develops into an ant silkworm, which crawls out of the egg shell, and turns white or yellowish after the egg shell is empty.

2) Ant silkworm: When the silkworm hatches from the silkworm egg, the color of the body is brown or black, very small, and it looks a bit like an ant, so it is called an ant silkworm.

3) Silkworm pupa: silkworm babies will form cocoons at the end of the fifth instar, and after about 4 days, they will become pupa. After about 12 to 15 days, when the pupal body begins to soften again, and the pupal skin is a little wrinkled and earthy brown, it will become a moth.

4) Silkworm moth: The adult stage of silkworm is shaped like a butterfly and covered with white scales, but due to the small two pairs of wings, it has lost the ability to fly. Soon after birth, they will look for a mate. Generally, after mating, the male dies and the female can lay fertilized eggs.

nymphs) (silkworm moths) (egg-larvae-pupa-adults).

The occurrence period of silkworms generally begins when the mulberry tree sprouts, and the occurrence of silkworms is called the greening period, and it should be protected indoors with air circulation, appropriate temperature and humidity for 12 to 13 days. Make the silkworm hatch, hatch out of the ant silkworm only 3mm long, heavy, after mulberry leaf feeding 25-28 days, silkworm maturity before 9cm long, weight about 4 5g, in the whole silkworm breeding period, for humidity aeration, feeding leaves, remove silkworm sand and broken leaves, to silkworm ripe after the cluster cocoon, is a series of more detailed processes.

After the silkworms are ripe and the cocoons are made, the next step is to reel the silk. In order to prevent the cocoons from turning into moths during storage, a simple cocoon drying equipment will use heat energy to kill the live pupae in the cocoon cavity of the fresh cocoon and remove the appropriate amount of water. There are many ways to reel silk, according to the different ups and downs of the silk cocoon, it can be divided into floating reeling, semi-floating reeling, sinking reeling three kinds, the rise and fall of the cocoon mainly depends on the amount of water absorption in the cocoon cavity after boiling the cocoon.

The cooked cocoon is reeled into raw silk, which must go through the processes of threading, sorting, gathering, twisting, interweaving, coiling, and drying. After the cocoon is reeled into raw silk by a silk reeling machine, it enters the silk weaving stage.

The color of silkworm eggs is pale yellow or yellow when it is first laid, and it becomes pale red bean color and red bean color after 1 2 days, and then turns gray-green or purple after 3 or 4 days, and then it no longer changes, which is called fixed color.

The larval stage is four to five days old; 2nd instar 3 to 4 days; 3rd instar 4 days; four years and six days; 5th age: 7 to 9 days;

Pupal stage 14 to 18 days;

Moth stage: 3 to 5 days.

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nymphs) (silkworm moths) (egg-larvae-pupa-adults).

<>Mulberry silkworms are accompanied by sleep and molting during their growth.

Sleep: After the silkworm completely stops eating, it spits out a small amount of silk, fixes the abdominal foot and tail foot on the silkworm seat, and raises the head and chest, as if asleep, which is called "sleep".

Molting: When molting, the cuticle of the silkworm head falls off first, then the silkworm body wriggles, and the rest of the old skin sheds back until it is completely shed.

1. What and what phenomena accompany the growth of silkworm larvae

Mulberry silkworms are accompanied by phenomena such as sleep and molting during the growth process.

2. Sleep and molt (up).

1. After the silkworm eats a large amount, it grows rapidly, the body color gradually fades, and the subsequent food consumption of the silkworm gradually decreases until the silkworm completely stops eating. At this time, the silkworm spits out a small amount of silk, fixes the gastropod and tail foot on the silkworm seat, and the head and chest are raised high, no longer moving, as if asleep, the phenomenon is called "sleep".

2. During the dormant period, the silkworm does not seem to eat and is inactive on the surface, but it is undergoing intense tissue renewal inside to prepare for molting (during this period, it mainly relies on the nutrients obtained by eating mulberry leaves before sleep to maintain normal life activities). When molting, the cuticle of the head falls off first, then the silkworm body wriggles, and the rest of the old skin slowly sheds back until it falls off completely. After molting, the silkworm enters the next instar stage.

3. Silkworm molting is because the epidermis of silkworm is chitin, which will not grow with the growth of silkworm body, so silkworms need to ensure their smooth growth by constantly molting.

3. Age and dormancy

1. The first instar period is about 4-5 days, the second instar period is about 3-4 days, the third instar period is about 4 days, the fourth instar period is about 6 days, and the fifth instar period is about 7-9 days.

2. The sleep period of the first instar is about 22 hours, the sleep period of the second instar is about 18-20 hours, the sleep period of the third instar is about 24 hours, and the sleep period of the fourth instar is about 44-46 hours.