Culturing oysters is not only for precious pearls but also for others. People take full advantage of oysters. Oyster shells are a kind of material for making excellently fine handicraft articles such as articles incrusted with mother-of-pearl, clothes buttons and many other jewelries. Powder of pearls is used to make up medicines for treating many diseases of bone, joint, skin… Cosmetic producers extol pearls as a magic remedy to lighten and beautify face skin. In addition, the oysters meat is a delicious and nutritious speciality.