What is the silkworm hatched from and how is it hatched?

The large silkworm makes a cocoon, then becomes an adult, bites a bite on the cocoon, comes out to ovulate, and the eggs hatch into young silkworms.

Of course, there are hatches from the eggs laid by silkworm moths!

It's like a chicken laying an egg. The problem of laying eggs. The upstairs one is really funny. Silkworm eggs? Isn't that egg also born of a silkworm?

Prepare a small box as a silkworm room and disinfect it, and spread the silkworm seeds in the silkworm plaque with the eggs facing upwards in the sterilized silkworm room. When a small number of silkworm seeds appear blue and black dots in the later stage of development, immediately cover the silkworm seeds with a black cloth, remove the dark black cloth after about 40 hours, and then wrap the silkworm seeds with white paper and wrap the egg face upwards, turn on the light to let the silkworm bite through the egg shell and hatch.

1. How to hatch silkworm seeds.

1. First of all, prepare a box as a silkworm room and disinfect it, in the sterilized silkworm room, the silkworm seeds must be spread in the silkworm plaque, and the egg surface should be upward. When there are a few silkworm seeds in the later stage of development, when there are a few blue-black dots, the silkworm seeds must be covered with a black cloth immediately, and then the black cloth is removed after about 40 hours, and the silkworm seeds are wrapped in white paper, and the egg side is turned on to light, so that the silkworm can bite through the egg shell and hatch.

2. After 3-4 hours of light sensitization, spring silkworms are generally at 9 a.m., and summer, autumn and silkworms can collect ants at about 7-8 a.m. Ant collection method: Cut the first leaf of the mulberry tree into small squares of centimeters, use about 5 times the amount of leaves, and sprinkle it on a dustpan lined with plastic film.

Take the silkworm seed paper in one hand, hold the silkworm chopsticks in the other hand, evenly pat the back of the silkworm seed paper, so that the ant silkworm falls on the dustpan, and then scrape the ant silkworm with goose feathers and arrange it into a circle.

3. Silkworms belong to ectotherms, and the best growth temperature is about 20-30 °C. The spring silkworm period often encounters a low temperature and humid climate, at this time it is necessary to replenish the temperature and drain the humidity, the summer silkworm period is generally high temperature and humidity, at this time it is necessary to cool down and drain the humidity, keep the air circulation in the silkworm room, and clear the stuffiness. If the autumn silkworm period is high temperature and dry, it should be moistened indoors.

Second, how to raise silkworm seeds after hatching.

1. Feeding. 1) When feeding, mulberry leaves must be covered with about 3-4cm thick on the silkworm's body.

2) Feeding: Silkworms can be eaten with the third leaf of the mulberry tree from the top bud down to the first instar at the first instar, and the amount of silkworms per silkworm seed is about 1kg; At the 2nd instar, the 4th leaf from the top bud down is fed, and the amount of silkworm per silkworm seed is about 3kg; The 3rd instar is fed with the 5th-6th leaf from the apical bud downwards, and the amount of silkworm per silkworm seed is about 10-12kg.

2. Temperature and humidity.

1) The suitable temperature of 1-2 instar silkworms is 26-27 °C, the relative humidity is 90%, and the upper cover is padded with plastic film.

2) The suitable temperature of the 3rd instar silkworm is 26-27 °C, the relative humidity is 85%, and the plastic film is not covered.

3. Management. When cleaning silkworm manure, the number of cleaning times should not be too much, and it is generally cleaned when the silkworm manure accumulates too deeply. When cleaning the mulberry leaves, the leftover stems must be cleaned, and the feeding environment should be kept ventilated.

4. Sleep period. 1) Before sleeping, you must add a net to the silkworm to remove the sand before sleeping, if some silkworms are not sleeping, you must add a net to the mulberry again, and the sleepless silkworms are brought up.

2) When the silkworm is sleeping, it must be sprinkled with lime powder on the silkworm seat in the early stage to keep the relative humidity at 80%; When there are silkworms, be sure to maintain a relative humidity of about 85%. After sleeping, more than 95% of the sleeping silkworms can be fed a small amount of mulberry leaves when they wake up.

Silkworms generally hatch in the spring, between late March and May, when the temperature is around 20, it will hatch, that is, when the mulberry leaves germinate.

Before the baby silkworm develops, you need to sprinkle it with some water, so as to maintain a certain humidity, but you can't shout too much water to shout, just keep it moist. During the incubation period, ensure that the temperature is suitable, and there are enough mulberry leaves to be rented, and they will hatch in ten days.

The purchased silkworm eggs need to wait until the mulberry leaves grow in the spring before they can hatch, otherwise the silkworms will have no food, and the eggs must be placed in a completely black environment for about 3-4 days before hatching.

Precautions for silkworm rearing:

1. Regulate temperature: silkworms are very sensitive to temperature, pay attention to temperature control during breeding, and it is best to control it between 20-25.

2. Provide light: To provide it with suitable light, it should not be placed in a dark place for a long time, and it should be exposed to astigmatism.

3. Feeding: Generally feeding mulberry leaves, it is necessary to ensure that the mulberry leaves are clean and fresh, and there can be no moisture on them, and they must be cut into small pieces.

4. Clean up the residue: pay attention to the hygiene in the box during feeding, clean up the remaining mulberry leaves in time, and clean up the excrement.

Conditions required for silkworm egg hatching:

1. The temperature condition for silkworm eggs to hatch into larvae is to keep the temperature in the range of 24-25 degrees, which is the best temperature condition for hatching silkworm eggs.

2. Pay attention to air circulation.

3. Appropriate humidity.

The practice of making silkworm eggs hatch as soon as possible is:

1. In the sterilized silkworm room, the silkworm eggs are spread in the silkworm plaque, the eggs are facing upward, the room temperature is required on the 1st to 4th day, the dry and wet difference is 2 -, and the room temperature is required to be 27 on the 5th to 10th day, and the dry and wet difference is required.

2. When a small number of silkworm eggs are found to be green and cracked, immediately darken the silkworm seeds with a black cloth, and after about 40 hours, that is, before dawn on the third day (generally before 4 or 5 o'clock in the morning), remove the dark black cloth, wrap the silkworm seeds in white paper, face the eggs upwards, turn on the light and sensitize, and let the ants and silkworms bite through the egg shell and hatch.

3. After 3-4 hours of sensitization, the spring silkworm is judged to be closed at 9 o'clock in the morning, and the summer and autumn silkworms can collect ants at 7-8 o'clock in the morning (that is, the newly hatched silkworms).

Silkworms, divided into two categories:

A type of silkworm, that is, mulberry silkworms. The Lord is going to feed on mulberry leaves. The other type is called mountain silkworms, that is, quercus silkworms, which feed on oak leaves.

Silkworms go through 4 stages in their life: eggs, larvae, pupa and moths. It is the larva of silkworm moth, the main raw material of silk products, and has an important position in human economic life and cultural history.

Native to southern China, the ancient text records that the emperor Xuanyuan began to raise silkworms, and the most famous in the south of the Yangtze River is the well-known wife of the Yellow Emperor. The staple food of mulberry silkworms is mulberry leaves, which can also be supplemented with a small amount of castor leaves. The cocoon is woven from a continuous silk with a length of about 300,900 metres (1,000,300 ft).

The adults and pupae of silkworms are edible and have therapeutic effects. Silkworm moths lay eggs and mate to reproduce offspring, and die after laying eggs. Because of its long history and economic importance, silkworm breeding has become an important object of modern scientific research.