1.The cultivation of silkworm called sericulture.
· 2. The silkworm incubates egg till they hatch into larva, at this point the size of the larva is quarter of 1 inch.
· 3. When the larva has hatched they placed under the fine goss layer and fed a huge amount of chopped mulberry leaves, at this time larva shed their skin 4 times.
· 4. Larva which fed mulberry leaves produces the finest of the finest silk. The larva will eat 50,000 times more its initial weight in plant material, for about six weeks, silkworm continuously. And grows to a maximum size of inches at 6 weeks. Then it stops eating and changes color.
· 5. And it is about 10,000 times heavier than it is hatched.
· 6. The silkworm has ready to spin a silk cocoon.
· 8. A single silkworm pupa can produce up to 15cm of fiber per minute.so, the silkworm attaches itself to a compartment frame, a twig, a tree, a shrub in a rearing house to spin a silk cocoon over 3 to 8 days called pupating.
· 9. And steadily over the next 4 days, silkworm will rotate its body in a figure 8 movement 300,000 times constructing a cocoon and producing about a kilometer of silk filament.
· 10. And now we reel the cocoon. Firstly we will treat cocoon with boiling water, hot air or stream.
· 11. Silk cocoon is unbounded from the cocoon but delicately and carefully unwinding of reeling this filament from 4 to 8 cocoons at one time. sometimes with a slight twist to create a single strand so this is how it’s actually done.
· 12. Now the amount of usable silk in each cocoon, it is really, really, really small. Because it takes 10kgs of the cocoon to obtain 1kg silk. And silk dress requires about 70 kgs of mulberry tree leaves.