CATDOLL : CATDOLL: Silkworm breeding process record sheet (Silkworm breeding process record sheet design)

1. What is 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.

2. How to fill in the silkworm growth record sheet?

The growth record of silkworms should first record the time, secondly the temperature, and thirdly the length.

3. 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.

4. What is the answer to the record of silkworm’s growth changes?

Silkworm ages are divided into: first instar 4 to 5 days; second instar 3 to 4 days; third instar 4 days; fourth instar 6 days; fifth instar 7 to 9 days; pupa stage +4 to +8 days; moth stage 3 to 5 days.

1. Silkworm eggs. Silkworms reproduce by eggs. Silkworm eggs look like fine sesame seeds, about 1 mm wide and 0.5 mm thick. A female moth can produce 400 to 500 silkworm eggs. 1700 to 2000 silkworm eggs weigh about 1 gram. The color of silkworm eggs is light yellow or yellow when they are just laid, and changes to light red bean color or red bean color after 1 to 2 days, and then changes to gray-green or purple after 3 to 4 days. It will no longer change, which is called fixed color. The outer layer of silkworm eggs is a hard eggshell, and the inside is yolk and serosal membrane. The embryo in the fertilized egg continuously absorbs nutrients during the development process and gradually develops into an ant silkworm. It crawls out of the eggshell, and the eggshell becomes white or light yellow after it is empty.

5. What methods can be used to record silkworm breeding?

When raising silkworms, we have three ways to record: photography, filling out record sheets, and writing observation diaries.

Raising silkworms is an activity that can stimulate children's creativity, interest, life, scientific thinking, and is beneficial to children's hands-on ability. It is also a good content for family activities. It becomes the first diary of the silkworm baby. Observe the ant silkworm and talk about what the ant silkworm is like. Question: What does the newly hatched silkworm look like?

6. What are the contents of the silkworm rearing notes?

1. Observation record of eggs

Color:

shape:

size:

2. Hatching of eggs

temperature:

Time (how many days):

3 Observation records of larvae

First instar silkworm

Size:

Color:

Appearance:

Second to fifth instar silkworms

Length:

Food intake:

Color:

Pattern:

Number of valve pairs:

foot:

Action:

Food:

Number of peeling times:

4. Cocooning Observation Record

Silking days

Cocoon color:

Cocoon shape:

Cocoon size:

Quantity:

Days spent growing in the cocoon:

5. Cut open a cocoon and observe the pupa inside

Pupa color:

Shape:

Appearance:

Action:

6 Records of the Cocoon-Moth Transformation

Silkworm moth appearance:

Mating duration:

Number of eggs laid:

Survival days:

Eating conditions:

7 Observation Notes Summary: