| Sericulture |
Life Cycle of Silkworm
All the species of silkworm mentioned above have four stages in their life cycle namely egg, larva, pupa and moth. In Bombyx mori, the egg Stage generally lasts for 10 days and the larval life is 25 to 30 days. This is the most active period in the life cycle of the animal, when it accumulates the nutrients required for its physiological activity at later ages. |
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The silkworm, keeping pace with its physiological growth, moults four times to cast off the old skin.The active period of growth, between moults is called “stage”. There are 4 moults and 5 stages during the larval period of silkworm. At the end of its larval life the silkworm builds a silken abode: the “Cocoon”. It enters the pupal stage in the cocoon which last for 8 to 10 days. This is the quiescent stage when the reproductive and adult organs are formed. After developing these organs the animal emerges out as “moth”.
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