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Anonymous users2024-02-15When will silkworms spin silk?
Answer: When the silkworm wants to spin silk, it will stop eating mulberry leaves, if there is a corner, it will generally climb to the corner to spin silk, if not, it will also find a relatively spacious place, surround itself in the middle, and spit out the silk to wrap itself inside, at the beginning of the silk less, you can see the silkworm in the activity, the back is more, forming a silkworm cocoon, some hardness, white or yellow.
The one-year-old silkworm I raised spit silk, why?
Answer: Silk? It seems that you are raising silkworms for the first time, and you must not touch it after you find out about this situation, because it is molting, and in order to fix its old skin, it spits out a little silk on its body to fix it. (Remember, it is impossible for a first-year-old silkworm to spin silk and form a cocoon) I hope it helps you!
When will silkworms spin silk?
Answer: I have raised silkworms before, silkworms will stop eating mulberry leaves when they want to spin silk, if there is a corner, it will generally climb to the corner to spin silk, if not, it will also find a relatively spacious place, surround itself in the middle, spit out the silk will wrap itself inside, at the beginning of the silk less, you can see the silkworm in the activity, the back is more, the formation of silkworm cocoon, some hardness.
When the silkworm reaches the fourth instar, will it not spin silk?
A: No, it won't! Silkworms shed their skin four times in their lives, and they will spin silk in 6 to 8 days after 5 years, don't worry, there is still a long time!
Why do silkworms that have not reached the fifth instar silkworm spin silk?
Answer: People often say: "Spring silkworm to die silk square neck Yes, the life of silkworm is great Do you know what the life of silkworm is like?
Listen to me tell you in detail Spring came, and I found that the eggs laid by the silkworms in our house in the box began to hatch Several small silkworms of only about a millimeter were born, and they were black in color and wriggled in the box I sprinkled mulberry leaves.
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Anonymous users2024-02-14Normally, silkworms will spit out a little silk at any time, especially when forming cocoons.
Normally, silkworms will spit out a little silk at any time, especially when forming cocoons.
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Anonymous users2024-02-13The silkworm's silkworm cocoon is related to the silk gland organ in the silkworm's body. From the perspective of the growth process of silkworms, in the larval stage, silkworms will digest and absorb the nutrients in mulberry leaves after eating a large number of mulberry leaves. Then, the various amino acids in the mulberry leaves will be absorbed and stored by the silk glands in the silkworm body.
With the increase of silkworm age, the silk gland also increased, and the expansion rate was particularly rapid in the fifth instar.
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Anonymous users2024-02-12Summary. Hello dear, happy to answer for you. <>
After inquiry, before the silkworm is about to spin silk, the silkworm baby will become very quiet and no longer eat mulberry leaves, the body will begin to become shiny, the stool is much larger than usual, the head keeps swinging, and the muscles of the head expand and contract back and forth with the swing. At this time, it is necessary to put something that can be supported in the silkworm box, help the silkworm baby to make a cocoon, and give the silkworm baby a suitable environment to make a cocoon.
The state of the silkworm before it is about to spin the silk.
Hello dear, happy to answer for you. <>
After inquiry, before the silkworm is about to spin silk, the silkworm baby will become very quiet and no longer eat mulberry leaves, the body will begin to become shiny, the stool is much larger than the flat section, the head is resistant to swinging blind posture, and the muscles of the head are expanding and contracting back and forth with the swing. At this time, it is necessary to put something that can be supported in the silkworm box, help the silkworm baby to make a cocoon, and give the silkworm baby a suitable environment to make a cocoon.
Hello, dear. Silkworm is about to lose appetite before spitting, silkworm baby after the fourth peel, will continue to eat mulberry leaves, but the amount of food is significantly reduced, after about 7 days silkworm baby will completely stop eating, become very peaceful. The change of body shape, the silkworm treasure spinning precursor will shorten and become fat, the whole body will be noisy and the sedan chair will become brown and shiny, and the chest will also be transparent.
Silkworms generally begin to spin silk and form cocoons when they grow for about 25 days. After the silkworm is hatched, it will undergo four times of peeling, each time it sheds, the silkworm will grow one instar, and when it grows to five years, the silkworm's body will become yellow and shiny, and then it will begin to spin silk. The time for silkworms to spin silk to make cocoons is 2-3 days, during which they will stop eating and need a quiet environment, if the silkworms are frightened during silking, they will stop spinning and even die. >>>More
1.Lesion causes: microparticles and pus can directly destroy the silk glands of silkworms, resulting in the occurrence of non-silkworms. >>>More
The larvae spin silk into cocoons and store wool, upholstered furniture, fur, carpets, blankets, fishmeal, chemical wool, and cotton-blended fabrics for the larvae to feed. The larvae are mostly found in clothing storage rooms and in the cracks of upholstered furniture. The clothing moth has a very weak constitution and does not fly far, which limits its range of activity. >>>More
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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. >>>More