How many days does a silkworm live in? The life of a silkworm is about how many days

The life of the silkworm passes through the silkworm egg, ant silkworm, mature silkworm, silkworm cocoon, silkworm moth, a total of more than 50 days. Silkworm (scientific name: bombyxmori) is a lepidopteran insect, the main raw material of silk**, which occupies an important position in human economic life and cultural history.

Native to China, South China and Taiwan, commonly known as silkworm babies or mothers.

The silkworm is called "silkworm" (meaning "silkworm") because it uses silk to weave cocoons. The cocoon is woven from a single piece of silk 300-900 meters long. Nowadays, China's cocoon silk production and export volume account for more than 70% of the world's total, and has become a major cocoon silk country that can dominate the world's cocoon silk trend.

Summary. 1.The life of a silkworm goes through four different stages, egg, larva, pupa and adult.

2.Silkworms overwinter with eggs, hatch into larvae when mulberry trees germinate in spring, and the larvae eat mulberry to grow, peel off after 4 days, and begin to form cocoons in about 25 days. After two days, the silking is completed, and after another 2-3 days, the skin is molted and pupated in the cocoon.

The pupal turns into an adult worm after about 10 days, which is a silkworm moth. Male and female moths mate to lay eggs and then die.

3.The eggs laid by the silkworm moth will be transformed into a pupa moth, and the new generation cycle will be completed. This is the life history of silkworms, which can live for more than 50 days on average.

The life of a silkworm is about how many days

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<> dear, I have been waiting for a long time, as far as I know, the life of a silkworm is about 50 days on average.

1.The life of a silkworm goes through four different periods, eggs, larvae, pupae and adults. 2.

Silkworms overwinter with eggs, hatch into larvae when mulberry trees germinate in spring, and the larvae eat mulberry to grow, peel off after 4 days, and begin to form cocoons in about 25 days. After two days, the silking is completed, and after another 2-3 days, the skin is molted and pupated in the cocoon. The pupal turns into an adult worm after about 10 days, which is a silkworm moth.

Male and female moths mate to lay eggs and then die. 3.The eggs laid by silkworm moths will complete the cycle of a new generation.

This is the life history of silkworms, which can live for an average of more than 50 days for early cultivation.

Dear, I advise you that after receiving the silkworm seeds, the silkworm seeds will be protected in a suitable environment in the chaotic mu, so that the embryos can develop normally, the specific method is: in the sterilized silkworm room wide accompaniment bureau, the silkworm seeds are spread in the silkworm plaque, the eggs are facing up, the 1st to 4th day requires room temperature 24, dry and wet difference 2-, the 5th to 10th day requires room temperature 27, dry and wet difference. When the embryo develops to the later stage, when a small number of silkworm eggs are found to be small cyan dots, immediately darken the silkworm seeds with a black cloth, after about 40 hours, that is, 4-5 o'clock before dawn on the third day, remove the dark black cloth, wrap the silkworm seeds in white paper, the eggs face upward, turn on the light and sensitize, so that the ant silkworms bite through the egg shell and hatch out, so that it can be.

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Little safflower] silkworms grow to what kind of cocoons.

Okay, wait a minute.

Hello, dear, silkworms will take about 1 month to form cocoons.

What are the symptoms before the cocoon.

Wait a minute. Symptoms: The silkworm will become quiet, no longer eat the feast mulberry leaves, the body will begin to become shiny, the stool is much larger than the usual ominous anniversary, the head will keep swinging, and the withered muscles of the head will expand and contract back and forth with the swing.

At this point in time, can you put it in the nutrient bowl?

Hold on. Dear, yes, you can put.

After releasing it, we should not move the silkworms, otherwise the silkworms at this time will easily die.

What if it doesn't have a clean stool after putting it in, and it poops again?

Hold on. Dear, you can put the stool in the silkworm after draining it, and when it is finished, the stool is relatively thin, because this is the excess water in the mulberry leaves.

The life cycle of the silkworm is 56 days, and the life cycle of the silkworm is about 24 32 days, which are the four cycles of eggs, larvae, pupae and adults, in these four cycles, it only eats in the larval stage, and does not eat in its three periods, in the adult stage, although the silkworm has wings, it can only vibrate its wings and cannot fly.

The larvae grow rapidly after eating mulberry leaves, under suitable temperature conditions, the silkworm molts once every 6 9 days, it takes about 24 32 days, after eating about 20 30 grams of mulberry leaves (5 grams of dry matter), it usually sleeps and molts 4 times, when it grows to the extreme, its weight increases about 10,000 times, the cocoon is the silkworm's instinct to adapt to the environment and survive. The staple food of silkworms is mulberry leaves, other leaves can also be used (silkworms and trees can also raise silkworms), silkworms have a strong appetite, they eat mulberry leaves day and night, so they grow quickly, in addition, silkworms are very afraid of cold, and when the temperature is slightly lower, they may die due to cold, we must pay attention to keeping warm at room temperature, silkworms are also delicious for ants, and we should also pay attention to the threat of ants to the life of silkworms.

The silkworm Nianyan baby eats a lot of mulberry, so it grows very quickly and its body color gradually fades. However, its appetite gradually decreases and even fasts completely, it spits out a small amount of silk, fixes its gastropods on the silkworm seat, raises its head and thorax, and no longer moves, as if it is asleep, which is called "sleep". The sleeping silkworm seems to be stationary on the outside, but the body is preparing to shed its skin, and after taking off the old skin, the growth of the silkworm will enter a new age stage, from the ant silkworm to the silkworm cocoon a total of 4 times.

Sleeping is one of the growth characteristics of silkworms, and sleep is a genetic trait of silkworms, which is also affected by the environment. At present, the silkworm breed raised in China is a four-sleeping species.

When the silkworm baby reaches the end of the fifth instar, it gradually shows the characteristics of old maturity: first, the excreted feces change from hard to soft, from dark green to leaf green; loss of appetite and decreased amount of mulberry eaten; The anterior digestive canal is empty, and the thorax is hyaline; Then stop eating completely, the body drive is shortened, the abdomen also tends to be transparent, the cephalothorax of the silkworm body is raised, the mouth is spit silk, and the left and right swing up and down to find a place to camp in the cocoon, such a silkworm is called a mature silkworm.

The eggs laid by the silkworm moth will be transformed into a pupa moth, and the new generation cycle will be completed. This is the life history of silkworms.