Method and device suitable for single oyster culture in shallow sea mudflat

Abstract

The invention provides a method and device suitable for single oyster culture in a shallow sea mudflat. Single seed oysters can be directly placed in culture mesh cages, the culture mesh cages are suspended on raft frame ropes of the shallow sea mudflat, the cultured single oysters are rolled in the culture mesh cages through two times of tidal variation every day to produce friction and tide stream impact force to keep shell surfaces and shell edges smooth, shells are attractive and beautiful, tedious work such as manual polishing is not required, the human and material resources are reduced,the culture cost is greatly reduced, the price of the cultured single oysters is 1-2 times higher than that of common oysters, the benefits are very significant, and besides, the utilization rate ofthe shallow sea mudflat is also increased. The method and device suitable for single oyster culture in the shallow sea mudflat can be applied to shallow sea mudflat areas with abundant bait and good water environments, the development demands of single oyster culture are met in the culture manner of culturing the single oysters by using tidal variation, meanwhile, manual separate polishing is notneeded, and the quality and value of oysters are improved.

Description

technical field [0001] The invention relates to a method for cultivating oysters, in particular to a new method for cultivating single oysters in shallow beaches by using tides, and belongs to the field of aquaculture. Background technique [0002] Oyster is one of the four major cultured shellfish in my country. Its output accounts for 1 / 3 of the total shellfish cultured output in my country and more than 85% of the world's total oyster output, but the output value of oyster in my country is only 3% of the world's oyster export value. Moreover, the raw oysters eaten in high-end hotels in major cities in my country are all imported from abroad, and the price of a single oyster is more than 30 yuan, while the price of oysters farmed in my country is only a few yuan per catty, and a single oyster is less than one yuan, which is different from the price of imported oysters. far. [0003] The reason is that in addition to the lack of world famous oyster brands in my country, it i...

AI Technical Summary

Problems solved by technology

[0002] Oyster is one of the four major cultured shellfish in my country. Its output accounts for 1 / 3 of the total shellfish cultured output in my country and more than 85% of the world's total oyster output, but the output value of oyster in my country is only 3% of the world's oyster export value. Moreover, the raw oysters eaten in high-end hotels in major cities in my country are all imported from abroad, and the price of a single oyster is more than 30 yuan, while the price of oysters farmed in my country is only a few yuan per catty, and a single oyster is less than one yuan, which is different from the price of imported oysters. far

[0004] At present, the growing time of individual oysters in our country is relatively short, and scallops are mainly used for growing in net cages for marine culture. However, during the growing process of individual oysters, the edges of oyster shells are extremely sharp and easy to cut the net cages. On the one hand, it causes The loss of growing individual oysters reduces the yield per mu of cultured. On the other hand, it causes damage to the growing cages, making them unusable and increasing the cost of farming. Special grow-out net cages are expensive, and the cost is high, so there are few people in shallow tidal flats, so the utilization rate of natural resources in shallow tidal flats is extremely low

However, in order to meet the standards of imported oysters in these single oyster culture methods, the single oyster must be artificially polished for 1-2 times during the culture period to keep the shell surface smooth. It is very large, and there is currently no more effective breeding method in foreign countries

In addition, because oyster farming does not require bait feeding, will not pollute the breeding sea area, and can improve the water quality of the sea area, oyster farming is advocated all over the world, but the existing oyster farming methods have affected the output of high-quality oysters

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