CATDOLL : CATDOLL: How to draw a beautiful flowchart of the whole process of silkworm breeding (How to draw a beautiful and simple flowchart of the whole process of silkworm breeding)

1. What is the whole process of silkworm rearing?

There are five stages in silkworm rearing: silkworm eggs - larvae - mature silkworms - silk cocoons - silk moths, which takes a total of more than forty days.

Ant silkworm: When the silkworm hatches from the egg, its body is brown or reddish brown, very small, and has many fine hairs, which looks a bit like an ant, so it is called an ant silkworm. The ant silkworm is about 2 mm long and 0.5 mm wide. After it crawls out of the egg shell, it will eat mulberry leaves after 2 to 3 hours.

The sleeping nature of silkworms: Silkworms eat a lot of mulberry, so they grow very fast and their body color gradually fades. But their appetite gradually decreases or even completely stops eating. They spit out a small amount of silk, fix their abdomen and feet on the silkworm seat, raise their head and chest, and stop moving, as if they are asleep. This is called "sleeping". The sleeping silkworms may seem motionless on the outside, but they are preparing to shed their skin inside. After shedding the old skin, the silkworms enter a new age. From ant silkworms to spinning silk cocoons, they shed their skin four times in total. Having the sleep nature is one of the growth characteristics of silkworms. Sleep nature is a genetic trait of silkworms and is also affected by the environment. The silkworms currently raised in my country belong to the four-sleeping varieties.

Silkworm age: also known as age period, which indicates the development stage of the silkworm. From the ant silkworm to the first molt is the first age; after waking up from sleep, it enters the second age; after molting again, it enters the third age; after the third molt, it enters the fourth age, and the fourth molt is also called the long sleep. After the long sleep, it enters the fifth age. The fifth-age silkworm grows very fast, with a body length of 6 to 7 cm and a weight of about 10,000 times the weight of the ant silkworm.

Mature silkworms: When silkworms reach the end of the fifth instar, they gradually show the characteristics of maturity: first, the feces they excrete change from hard to soft, and from dark green to leaf green; their appetite decreases, and the amount of food they eat decreases; the front digestive tract is empty, and the chest becomes transparent; then they stop eating completely, their bodies shorten, and their abdomens tend to be transparent; their head and chest are raised, they spit out silk threads from their mouths, and they swing left and right and up and down to find a place to build their cocoons. Such silkworms are called mature silkworms.

Cocooning during the adult stage: People put mature silkworms in special containers or on cocoons, and the silkworms will spin silk and make cocoons.

2. The whole process of silkworm rearing?

1. Hatching silkworm eggs: Place the silkworm eggs in a warm place such as an electric blanket or pocket.

2. Feeding food: Provide silkworms with fresh, dry mulberry leaves once a day.

3. Clean regularly: Clean the paper box once a day to remove any remaining food and feces.

4. Note: When the silkworms are making cocoons, put some dry branches and bamboo strips in the paper box.

3. The process of raising silkworms?

step

(1) Place the silkworm eggs in a clean and odor-free silkworm rearing box. From the time the silkworm eggs leave the warehouse, they will naturally hatch into larvae in about 11 days (including the shipping time) at room temperature of 21-29°C.

(2) The larvae begin to have an appetite about 40 minutes after hatching, and can be fed. You can cut the mulberry leaves into small pieces with a knife and put them in the silkworm box. The silkworms will actively climb onto the mulberry leaves to eat. For 1-3 day old silkworms, you can choose tender mulberry leaves, and for 4-5 year old silkworms, you can use ordinary mulberry leaves.

(3) Silkworms grow well in an environment of 22-29°C, with the optimum temperature being around 27°C. Feeding can be done in the morning or at noon.

4. How to draw the life cycle of a silkworm?

1. Draw the rough diagrams of the various stages of the life of a silkworm on paper, and use a black colored pen to draw the moth. Draw the rough diagrams of the various stages of the life of a silkworm on paper with a pencil, and use a black colored pen to draw the shape of the adult moth and the figure of the silkworm.

2. Use a black colored pen to draw the larvae of the silkworm. Next, use a black colored pen to draw the larvae of the silkworm, which are drawn from hatching to dormancy and molting.

3. Use a black colored pen to draw the graphics of the silkworm's secondary dormancy and growth stage after molting. Then, use a black colored pen to draw the graphics of the silkworm's secondary dormancy and growth stage after molting.

4. Use a black colored pen to draw a picture of a grown silkworm. Next, use a black colored pen to draw a picture of a grown silkworm.

5. Use a black colored pen to draw a picture of a silkworm spinning silk to form a cocoon. Then, use a black colored pen to draw a picture of a silkworm spinning silk to form a cocoon.

6. Use a black colored pen to draw the image of the silkworm becoming a pupa in the cocoon. Next, use a black colored pen to draw the image of the silkworm becoming a pupa in the cocoon.

7. Use orange and tangerine colored pencils to color the figures of the silkworms at different stages. Finally, use orange and tangerine colored pencils to color the figures of the silkworms at different stages so that they look nice.

Silkworms reproduce by laying eggs. Silkworm eggs look like fine sesame seeds, about 1 mm wide and 0.5 mm thick. A female moth can lay 400 to 500 silkworm eggs. 1700 to 2000 silkworm eggs weigh about 1 gram and have a diameter of 0.2 cm. The color of silkworm eggs is light yellow or yellow when they are first laid, and changes to light red bean color or red bean color after 1 to 2 days, and then turns to gray-green or purple after 3 to 4 days. It no longer changes and is called a fixed color.

The outer layer of the silkworm egg is a hard eggshell, and inside is yolk and serous membrane. The embryo in the fertilized egg continuously absorbs nutrients during the development process and gradually develops into a silkworm. It crawls out of the eggshell, and the eggshell becomes white or light yellow after it is empty.

5.5 What are the steps to raising silkworms?

The growth of silkworms can be divided into five stages: eggs, larvae, mature silkworms, cocoons, and moths. Under normal feeding conditions, it takes 20 to 28 days for the larvae to hatch and eat mulberry leaves, spin silk and make cocoons; it takes about 3 days to spin silk and make cocoons; it takes another 1 to 2 days to pupate; after 10 to 15 days of pupal stage, it will turn into a moth, and the total process is about 40 days, and the moth will become an adult.