Question: The silk of a silkworm is a…? (IFFCO 2022)
Options:
4th moult
3rd moult
Either a or b
2nd moult
• Silkworms go through a series of molts (shedding their skin) as they grow. The silkworm spins its cocoon after the 4th molt. Here's a breakdown of the silkworm life cycle:
-Egg: The life cycle begins with an egg.
-Larva (Caterpillar): The egg hatches into a larva, also known as a caterpillar or silkworm. This stage is all about eating and growing.
-Molting: The silkworm molts several times to accommodate its increasing size.
-Cocoon: After the 4th molt, the silkworm spins a cocoon made of silk fibers. This is where it undergoes metamorphosis.
-Pupa: Inside the cocoon, the silkworm transforms into a pupa.
-Adult Moth: The pupa develops into an adult moth, which emerges from the cocoon to reproduce.
🔑Key Points:
-The study of the cultivation of silkworms to produce silk is called Sericulture.
-The life cycle of a silkworm is Egg > Caterpillar > Pupa > Adult.
-The egg is the first and primary stage of the life cycle of Silkworm.
-The egg is laid by a  female moth and the egg is having the size of small dots.
-More than 350 eggs are laid by a female moth at a time.
-The eggs hatch in the springtime due to the warmth in the air.
-This procedure takes place once a year.
-Silkworm arises after the eggs crack and they are hairy.
-They feed on mulberry leaves and consume a large amount of these leaves for around thirty days.
-The Silkworms spin a cocoon around themselves which protects them.
-This cocoon is made up of a single thread of soil.
-Cocoon appears as a small cotton ball.
-The pupa is a motionless stage.
-The last stage is when the Pupa changes into an adult moth.
-The Silk was invented around 3500 BC in China.