D'source Design Gallery on Cocoon Formation

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Design Gallery

Cocoon Formation

The making of Silk Threads

Prof. Bibhudutta Baral and Mr. Antony William

NID, Bengaluru

The eggs hatch into small black coloured larvae.
They are incubated and provided with the right conditions to hatch.
Once they hatch, they feed on mulberry leaves and reach maturation.
The matured worms are segregated and readied for cocoon formation.The matured worms are segregated and readied for cocoon formation.
The environment has to be conducive to the silkworm rearing.
The larvae are stored in well-ventilated rooms.
After attaining full growth in the final instar, the worms cease to feed and are ready to spin.
These worms have to be picked up and transferred to a mountage for spinning cocoons.
The silkworms complete spinning in 48 to 72 but the cocoons should not be harvested at this time as the worms inside are still in pre-pupal stage.
About 800-900 worms per m2 are to be kept on a mountage.
Harvesting should be done on the fifth day when the pupae are fully formed and hard.
The cocoon can then be transported for silk reeling and twisting.

The eggs hatch into small black coloured larvae.	They are incubated and provided with the right conditions to hatch.	Once they hatch, they feed on mulberry leaves and reach maturation.	The matured worms are segregated and readied for cocoon formation.The matured worms are segregated and readied for cocoon formation.	The environment has to be conducive to the silkworm rearing.	The larvae are stored in well-ventilated rooms.
After attaining full growth in the final instar, the worms cease to feed and are ready to spin.	These worms have to be picked up and transferred to a mountage for spinning cocoons.	The silkworms complete spinning in 48 to 72 but the cocoons should not be harvested at this time as the worms inside are still in pre-pupal stage.	About 800-900 worms per m2 are to be kept on a mountage.	Harvesting should be done on the fifth day when the pupae are fully formed and hard.	The cocoon can then be transported for silk reeling and twisting.

This gallery will show you simple technique of cocoon formation. There are many stages in this this process which involve collection of matured worms, rearing management, mounting of matured worms and in the end cocoon harvest.

For more details: http://www.dsource.in/resource/cocoon-formation

The eggs hatch into small black coloured larvae.

They are incubated and provided with the right conditions to hatch.

Once they hatch, they feed on mulberry leaves and reach maturation.

The matured worms are segregated and readied for cocoon formation.The matured worms are segregated and readied for cocoon formation.

The environment has to be conducive to the silkworm rearing.

The larvae are stored in well-ventilated rooms.

After attaining full growth in the final instar, the worms cease to feed and are ready to spin.

These worms have to be picked up and transferred to a mountage for spinning cocoons.

The silkworms complete spinning in 48 to 72 but the cocoons should not be harvested at this time as the worms inside are still in pre-pupal stage.

About 800-900 worms per m2 are to be kept on a mountage.

Harvesting should be done on the fifth day when the pupae are fully formed and hard.

The cocoon can then be transported for silk reeling and twisting.

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Cocoon Formation