Talk about some phenomena before silkworm farmers spin silk. What should silkworm farmers do to prepare?

Phenomenon before silkworms spin silk:

The body turns yellow and transparent, the skin is tight, and mulberry leaves are no longer eaten in large quantities. Silkworm excrement turns green, bigger than usual. In the light, you can see the transparent color between the chest and abdomen.

Silkworm farmers prepare:

Create a small place for silkworms to spin silk, for example, build a small shelf, or make some small squares with paper, and put some supporting things in the silkworm box to give silkworm babies a suitable environment to cocoon.

Extended data:

Cocoon forming process

1. Mature silkworms spin silk first and then stick to the cocoon catcher. Then they spit out their own silk and connect the surrounding branches to form a cocoon scaffolding, which is a cocoon net. The cocoon-forming net has no cocoon shape, only some soft and messy cocoon silk layers, which are used as cocoon-forming supports.

2. After the silkworm forms a cocoon web, it constantly spits out messy silk loops, thickens the inner layer of the cocoon web, and then spins in an S-shape, and the outline of the cocoon begins to appear, which is called a cocoon clothing. The silk fibers in the cocoon layer are thin and brittle, with extremely irregular arrangement and high sericin content.

3. After the cocoon layer is formed, the cocoon cavity gradually becomes smaller, and the front and rear ends of the silkworm body bend backward to form a "C" shape. Silkworms continue to spit out cocoon silk, and the way of spinning silk is transformed from s to infinity, and the process of cocoon formation begins.

4. When the silkworm's body is greatly reduced due to a large amount of spinning, the head and chest swing slowly without a certain rhythm, and the spinning begins to appear messy, forming a loose and soft cocoon silk layer called pupa lining.

Baidu encyclopedia-silk quilt

Baidu encyclopedia-silkworm