1-FEEDING TO GET FATTENING
After the implantation, oysters are fed to be fat.
After the implant process, the oysters are subjected to many lesions that should weaken. So, oysters are fed to recover their health. The environment should be quiet and the environment conditions are less fluctuating to oysters. After the period of recovery and wholesome wound feeding, the outer membrane epidermis will develop an implant nucleus. The inner epidermis will be absorbed by the connective tissue for two days and will pass through the pearl breeding.
2-RAISING PEARLS
Oysters are raised in bamboo cages or hanging nets in seawater. After the period of feeding, the oysters recovered, they were transferred to the main farm to become pearls. Use bamboo cages or meshes in seawater with salt concentrations 25-35% (less than 15% of oysters are prone to death), temperature from 20-300C, depend on the breed that changes the depth of the cages to maintain the most appropriate conditions for mussels. Short or long cultivation depends on the requirement of large or small pearls. Usually from 1-4 years.
3-CHECKING
The cage should be clean when the epizoic creatures more cling to the shell. During the breeding process, the care mainly keeps the cage clean so that the oyster does not get sick and avoids the disadvantage for them. Because the cages are often affected by the epizoic creatures that affects growth. It should be periodically clean when the shell has many creatures. In case of adverse farming environment to move the cage to another place.
4-FEEDING TO CREATE COLOR
The oysters are colored as they are cultured in the ideal area. The favored pearls are pinky white. To have this color, the oysters must be cultured in the certain waters, elsewhere, will not make the same color. This region is called “color zone”. Specific conditions for creating pearl color have not been discovered. But according to the experience, the stained area has abundant food and advantageous environmental conditions such as temperature, salt concentration, climate... pronounced seasonal variations.
5-HARVESTING
After harvesting the oysters, pearls are drawn and made into magnificent products. The final stage is the harvest of pearls, enjoy the achievement after days of culturing pearls. Oysters are taken pearls at low temperatures, better pearl quality than taken at high temperatures. The harvest period is from August to October annually. After harvesting the pearls, they will be transferred to the jewelers’ hands and start appearing on beautiful items. Lots of silver chains, silver rings, inserted pearls have been pleasing to the ladies. Pearls are important resources, giving people invaluable gifts. Pearls are used to make valuable jewelries, not only be beautiful but protect the health, which is popular.
The process and techniques of raising pearls require the elaborately, to obtain the perfect pearl, the pearls have undergone several stages.
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