How to fold the lattice of silkworm spinning, how silkworm spinning

Fight the cross! Two crosses are not one! Cross the pieces of paper, but be thicker! Drain the water before silkworm spinning!

After the ripe silkworm is caught, it continues to crawl, and when it finds a suitable place to camp in the cocoon, it begins to spin silk and form cocoons.

Silkworm spinning silk cocoon can be divided into 4 processes:

1) The ripe silkworm first spits out the silk, sticks it to the chopper, and then spins the silk to connect the surrounding branches, that is, the cocoon net. The cocoon net does not have a cocoon shape, but is just some soft and messy cocoon silk layer to serve as a support for the cocoon.

2) After the silkworm finishes the cocoon net, it continues to spit out messy silk circles, thickens the inner layer of the cocoon net, and then spins the silk in an S-shaped way, and the outline of the cocoon begins to appear, which is called the cocoon coat. The silk fibers of the cocoon are fine and brittle, arranged very irregularly, and have a lot of sericin content.

3) After the cocoon is formed, the cocoon cavity gradually becomes smaller, the front and rear ends of the silkworm body are bent to the back to form a C shape, the silkworm continues to spit out the cocoon silk, and the silking method changes from the S-shape to the shape, which begins the process of forming the cocoon layer.

4) When the silkworm has a large amount of silkworm spinning, the body is greatly reduced, the cephalothorax swing speed slows down, and there is no certain rhythm, the silkworm begins to appear messy, forming a loose and soft cocoon silk layer, called the pupal lining. Finally, the head of the silkworm goes up and the tail goes down, and the last silk material left in the body is spit out, forming a soft cocoon top, and the process of spinning the silk camp cocoon ends.

Only the larval stage feeds on mulberry leaves. The mulberry leaves eaten by silkworms are digested and absorbed by the digestive system in the silkworm, and some of them become the constituent substances of the silkworm's tissue cells, and at the same time provide the energy required for life activities.

The other part is converted into various amino acids, which are transported from the bloodstream to the silk glands. The silk gland is a gland that specializes in the synthesis of silk, and it is made up of more than 900 glandular cells. The liquid silk protein secreted by glandular cells is processed and synthesized by the silkworm mouthpiece, and is pulled by the silk spinning tube at the bottom of the silkworm mouthpart, and a long liquid filament is spit out, and the filament condenses into a solid filament after encountering air.

Generally speaking, the larvae of a mature silkworm, after 2 to 3 days of all-night "work", can use slender silk to form an oval cocoon cavity until it becomes a cocoon.

If you play at home, throw a few knotted clumps of straw between them, and they will use the terrain to form cocoons on their own.

At this time, you should prepare a small box, lay paper in the box, pick some fresh mulberry leaves (wet mulberry leaves should be dried with a cloth, otherwise the silkworm will have diarrhea), put it in a small box, and then put the silkworm on it, so that the silkworm will eat mulberry leaves every day when it is hungry, about a week, the silkworm will slowly grow up, peel, and become yellow after a peel, and the second or third time will become a white "princess", we are all called silkworm babies, and then there is a little finger as thick, About three or four peels of silkworms translucent, and do not eat, it is time for silkworms to make cocoons, it will spit out some white silk, at this time you should pay attention, it is best to use another box, do not put anything in it, at this time it will not eat, just like that, silkworms will choose a corner at any of the four corners of the box, spin silk, make cocoons, and after it finishes the cocoon, it will also wrap itself in the cocoon, you see that you are just a white oval cocoon, at this time you don't move it, You close the box, wait for about half a month, and then open the box, there will be a silkworm moth flying out of it, this time is when it gives birth, you can lay some paper in the box, the silkworm moth will produce the child on the paper, and after giving birth, the silkworm moth will fly away. That is, dead)

If the silkworm begins to be transparent, it is time to spin silk.

Prepare some hay and put the silkworms on it.

When the silkworm begins to spin silk, it will stop eating, drain the feces in the body, and the white part of the body color will become translucent and shiny milky yellow (6 12h) to complete, then you only need to use straw to tie into a scattered fork branch, it will climb up to form a cocoon on its own, and it can be picked after 3 days of starting cocoons, and it doesn't matter if you don't pick it there.

Prepare clean gloves, spread out the clean straw and place the baby silkworm on it. It's too cumbersome to tie up shelves, use shoeboxes, etc.

What silkworm is so godly? will post questions.

In the body of the silkworm, there is a silk making system called silk glands with a complete structure and complex structure. The silk gland is connected to the silk bubble called the extruder under the head, and these two basic components make up a "natural textile machine".

When the silkworm spins silk, the head keeps swinging, and the muscles of the head expand and contract back and forth with the swing, squeezing out the liquid silk in the body. These liquids.

As soon as the filaments come into contact with air, they quickly condense into solids. The silkworm will spit out the silk into a neat "8" shaped silk circle, and each weave more than 20 silk circles (weighed.

Silk Row) Benna moved her body, and then continued to spin the silk and weave the silk column below, weaving one end and then weaving the other. Therefore, the shape of the cocoon is always two.

Thin in the middle.

When the silkworm spins the silk cocoon, the head keeps swinging, and the silk is woven into neatly arranged zigzag silk circles. Its head is always raised, sometimes down, and constantly swaying from side to side. If you look closely with a magnifying glass, the silk of the silkworm cocoon is a neatly arranged "8" shaped silk circumference, and every more than 20 silk circles is called a silk row.

A silkworm that grows naturally in the wild can spin silk.

One or two hundred meters long, and now after artificial domestication and selection, one silkworm can spin more than 3,000 meters. The head keeps swinging, weaving the silk into neatly arranged "8" shaped silk circles. Silkworms need to change their position 250-500 times to weave more than 60,000 "8" shaped silk loops, each of which is an average centimeter long, and the silk length of a cocoon can reach 700-1500 meters.

The 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. 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. Before spinning the silk cocoon, it can be seen that the breast of the silkworm is slightly transparent, which is the reason for the accumulation of a large amount of protein in the silk gland.

Gaga, An'an also raises silkworms, your sister, I also raise ha.

Just take some sticks with a smooth surface and put them crossed.

Our silkworms are all cocooned.

The branches are too hard and too rough on the outside, find something with a smooth surface, such as thin bamboo, and tie them together.

If you have time, prepare a box, see how many silkworms you have, divide the box into several small grids, about 3-5 centimeters, there are not too many requirements, if there are only a few silkworms, you can not care, the silkworms themselves will run to the corner of the box to knot. Silkworms are very smart,

Take a four-cubic-centimeter cardboard box, cut off the adjacent sides, and the silkworms will go inside.

Place on a bunch of straw or in a piece of plaid paper.