How does the color of silkworm eggs change?

The color of silkworm eggs is light yellow or yellow at first. After 1~2 days, it turns into light red bean color and red bean color. After 3~4 days, it turns into gray green or purple, and it will never change again. The outer layer of silkworm eggs is a hard eggshell with yolk and serosa inside. The embryo in the fertilized egg constantly absorbs nutrients during development, gradually develops into an ant silkworm, crawls out of the eggshell, and the eggshell becomes white or light yellow when it is empty.

Silkworm eggs are mottled green, which is common in non-diapause silkworm eggs. Black spots appear on one side of the egg, which is obviously different from other parts. The other parts of the silkworm eggs gradually turn black in the next few days, and the characteristics of green spots also end.

Extended data:

Precautions:

1, the hatching time of each silkworm egg may be different, and the hatched mature silkworm babies will crawl out. It is necessary to observe the hatching of each silkworm egg at any time and separate the hatched larvae in time.

2. Prepare a carton for hatching silkworm eggs. Spread a layer of clean white paper in the box and put it in a warm place. If the climate is dry, you can sprinkle water on the white paper, and be careful not to sprinkle it on the silkworm eggs. The optimum temperature for silkworm eggs to hatch into larvae is 24-25 degrees. Keep the air circulating, and give silkworm babies a comfortable environment to grow up.

3. The best food for silkworm babies is mulberry leaves, and lettuce leaves can also be fed. If you can't find mulberry leaves to replace them, the remaining leaves can't be eaten by silkworm babies. However, whether it is mulberry leaves or lettuce leaves, it needs to be wiped clean when feeding. Don't feed it with yellow and rotten leaves, otherwise the silkworm baby will get sick and even be life-threatening.

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