Following precautions and managements are essential for the maintenance of sericulture:
A. Plantation of mulberry trees:
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To supply fresh leaves to the larvae, plantation of mulberry trees (commonly used is Morus alba) is essential.
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It requires fertile land and good source of water.
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The field of mulberry plants should be near the sericulture centre.
B. Rearing house:
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A well protected house is essential for rearing of larvae and caterpillars.
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There should be relatively small changes in the temperature conditions.
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The rearing house should protect the larvae from birds, direct bright light and high temperature.
C. Feeding:
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The larvae and caterpillars are voracious feeders. They are fed with fresh mulberry leaves.
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Therefore, regular supply of fresh, young mulberry leaves is essential.
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The fresh leaves are supplied after every 2-3 hours.
D. Careful observation and Isolation:
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The non-feeding and spinning caterpillars are regularly observed and isolated.
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The spinning caterpillars are isolated and transferred to different spinning trays, called chandrikas (Cocconage).
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The spinning is regularly inclined towards the light which helps the cocoon to develop.
E. Care of cocoons and stifling:
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Damaged and ruptured cocoons are not useful in the preparation of silk threads.
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Hence, rupture of cocoons is avoided by hot water treatment or dry heat or fumigation.
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The pupa is killed and the cocoon damage is prevented. This process is known as stifling.
F. Reeling:
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The winding of silk fibre on a wheel is known as reeling.
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It is done by throwing many silk fibres and twisting them together.
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A strong silk thread is wound around a wheel.
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This is raw silk.
G. Spun and spool:
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The damaged cocoons and broken silk fibres are teased to prepare silk thread.
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This process is known as spool.
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The silk obtained is known as spun.