Ecological purifying method for oyster cultivation

A technology for ecological purification and oysters, applied in chemical instruments and methods, fish farming, climate change adaptation, etc., can solve problems such as few studies, and achieve the effects of improving fertilizer rate, excellent environment, and excellent water quality and environment.

Inactive Publication Date: 2014-11-19
姚茹
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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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  • Ecological purifying method for oyster cultivation
  • Ecological purifying method for oyster cultivation
  • Ecological purifying method for oyster cultivation

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Embodiment Construction

[0025] The oyster (Crassostrea rivularis) is selected as an example to illustrate the ecological purification method of oyster culture according to the present invention. For other types of oysters, including Pacific oysters, long oysters, etc., the ecological purification method of the present invention can also be used to carry out ecological purification treatment for the cultivation of these oysters.

[0026] First, provide an oyster culture pond or fish farm, that is, provide an enclosed culture place.

[0027] Seawater is used for oyster farming. Before entering the water, first disinfect the breeding pond or fish farm, and then introduce seawater through a mesh filter.

[0028] After entering the water, inoculate microalgae and probiotics into the pool or aquarium. The microalgae may be selected from the group consisting of subcordate, Chlorella, Chrysophylla, Chaetoceros, and the like. After inoculation, the number of microalgae reaches 1 million to 1.5 million alga...

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Abstract

The invention relates to an ecological purifying method for oyster cultivation. The ecological purifying method for oyster cultivation includes the following steps that an oyster cultivation pond or a fish tank is provided, sea water filtered by a net is guided, and microalgae, probiotics and other microecologics are put into the water before oysters are cultivated; the oysters are cultivated in the cultivation pond or the fish tank in a hanging mode according to the proportion of 5% of water area, the microalgae and the probiotics are supplemented every two weeks; the oysters can be harvested after purification is carried out for three to four months. During purification, content of ammonia nitrogen, nitrite nitrogen, chemical oxygen demand and other harmful substance is obviously reduced, content of dissolved oxygen in the water is increased, improvement of water quality is promoted, the weight gaining rate of the oysters is obviously increased, content of heavy metal in the oysters is reduced, and the effects of purifying the oysters and improving quality of the oysters are achieved. The purified oysters obtained in the method reach the standard of pollution-free food in China.

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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00C02F3/32C02F3/34
CPCY02A40/81
Inventor 姚茹黎祖福
Owner 姚茹
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