Oyster culture process is divided into three stages. Witness to his growth. The variety of oysters is usually marked by the breeding place of oysters. Generally speaking, the use of oysters sold in the market has gone through three stages. Firstly, oyster seedlings are cultured in the sea area suitable for culture, and then cultured near the estuary with fertile water and rich plankton. This is also the stage when oysters gain weight and fragrance. In the future, they will be kept in a still pool for about a week before they are put on the market. When used with oysters, it is easy to spit out impurities. In the culture stage, the biggest factor affecting the characteristics and taste of oysters is not only the meat quality of oysters, but also the distinctive local seawater flavor, which also comes from this stage. So, if you taste these oysters marked with different breeding places, you will taste the seawater from all over the world.

Breeding characteristics of oysters

Oysters can only grow at the intersection of salty and fresh water with a salinity of about 10 degrees. Once out of this sea area, cultured oysters will die because of high salinity. Oysters don't like polluted water sources, but more attention should be paid to preventing natural enemies, barnacles, sea squirts, moss vines, perforated sponges and other attached organisms, carnivores such as waterfowl and wild ducks, natural disasters and bacterial fungal diseases.

breeding method

The most common farming method is to keep the cement strips in place. This method is the most widely used oyster culture method in China at present, and its main culture technology is, but the nutrition date should be correctly grasped after the seedlings are delivered with cement belt. In order to shorten the cultivation work, it should be started after 10+00, because barnacle seedlings are basically not attached after 10. Strive to finish before the end of 1 1. Yangcheng District should choose low tide area, which is the only way to increase the water inflow time. In Doni, the Shahai area should avoid the tide and pass through several meditation places. This is because when the tide rises and falls, the shells of oysters are opened and sediment is poured into the body, leading to suffocation and death.

In addition, there is the hanging culture method, which is an advanced technology of oyster culture in China at present. It has the advantages of short culture cycle and high yield, and is the development direction of oyster culture in China. Vertical farming methods are divided into raft culture method, longline fishing method and scaffolding method. At present, there are other ways of oyster culture in China, such as bottom sowing, beach culture and beach culture.

Cultivation management

In oyster culture, we should always manage, check and observe, especially after the typhoon, we should put oyster seedlings in the sea in time to cross seedlings. In the process of raising oysters with cement belt, impurities and excessive attachments attached, attached and adsorbed on seedlings should be removed in time. When the broken string of shells falls into the mud, it should be hung up in time, especially to prevent the cutting rope from being washed away and the scaffold from collapsing, and it should be reinforced in time before the typhoon season.

Enemies and pests and diseases

Red tide is not only harmful to fishery, but also to shellfish culture. The main organisms that produce red tide are Gyrocentrum. , Chlamydomonas. Cercospora. Nocturnal insects and so on. Barnacles, sea squirts and bryozoa compete with oysters for attachment and food, which affects the attachment and growth of oysters. Fungi and parasites. Industrial wastewater pollution and pesticide pollution, with the development of township enterprises, many industrial wastewater are discharged into the sea without treatment, which has caused great harm to oyster culture. In addition, due to the overuse of many highly toxic pesticides, the water discharged from farmland has also become one of the pollutions.