Ecological purification method of oyster culture

Abstract

The invention relates to an ecological purification method for oyster cultivation. The ecological purification method of oyster culture according to the present invention comprises the following steps: providing an oyster culture pond or fish pond, introducing seawater filtered through a net filter, and inoculating micro-ecological preparations such as microalgae and probiotics into the water before stocking oysters; Then hang the oysters in the culture pond or fish pond according to the proportion of 5% of the water body area, and replant the microalgae and probiotics every two weeks; purify for 3-4 months, and then harvest. During this purification period, the content of harmful substances such as ammonia nitrogen, nitrite nitrogen, and chemical oxygen demand in the aquaculture water body is significantly reduced, and the dissolved oxygen content in the water body is increased, which promotes the improvement of water quality; at the same time, it significantly increases the fattening rate of oysters and reduces The content of heavy metals in oysters can achieve a good effect of purifying oysters and improving the quality of oysters. The purified product obtained by the method of the invention reaches the national pollution-free food standard.

Description

technical field [0001] The invention belongs to the field of aquaculture and relates to an ecological purification method for oyster cultivation. Background technique [0002] my country's aquaculture output ranks first in the world, and shellfish occupies a very important position in my country's aquaculture industry. According to statistics, in 2010, the output of sea shellfish culture in my country was 11.0823 million tons, accounting for 74.76% of the national sea shell culture output. The area of ​​marine shellfish cultivation is 1.308 million hectares, accounting for 62.86% of the national marine cultivation area. Therefore, the quality of shellfish farming is related to the success or failure of my country's aquaculture industry. [0003] Although my country's marine shellfish aquaculture industry has made great progress in recent decades, with the rapid economic development of my country's coastal areas, the environmental pollution of coastal waters has become incr...

AI Technical Summary

Problems solved by technology

At present, the methods used for shellfish purification are mainly physical and chemical methods such as ozone method, ultraviolet method, and chlorine disinfection method for microbial pollution. These methods can only play a role in disinfection and sterilization of water quality. There is little research on the purification technology to improve the water quality of aquaculture

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