Discuss about the time and methods of harvesting of cocoons. List any five types of defective cocoons. 

The time for harvesting cocoons depends on the type of silkworm and its environment. For mulberry silkworms, cocoons are ready to be harvested after the silkworm has completed spinning and entered its pupal stage, which typically occurs 7 to 10 days after spinning begins. Harvesting can be done by carefully cutting the cocoons from the branches they are attached to, being careful not to damage the cocoon or break the silk fibers.

The most common method of harvesting cocoons is boiling, where the cocoons are placed in boiling water, causing the cocoons to soften and the silk fibers to unravel. This method is efficient, but can damage the silk fibers and reduce their quality. Another method is to gently peel the cocoon by hand, preserving the silk fibers for use in spinning. ________ ________ ___ _____ _________ ______ ______.
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