Silkworms are the outer coverings of silkworm which made of silk threads made from protein, which help to protect the environment and natural enemies.

Thousands of years ago, silkworm silkworms were discovered to produced silk yair by silkworm cocoons: Silkworms will be soft by hot water and silk threads can be pulled, thin, firm and uniform and can produce beautiful and durable fabric.

Good quality silkworms are not necessarily large in size but need more silk, less cocoon, easier to pull silk and cocoons to be in shape and size.

Good silkworm cocoon due to the following factors: seedlings and care when the silkworms ripen (density, temperature, humidity, ventilation, light). kimvuongjsc12 in skype or line, wechat

Main features of cocoon: color, cocoon shape, size, hardness, wrinkles, cocoon weight, shell weght and shell ratio.

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Linda Nguyen.