Liquid-oxygen oxygen-increasing high-density sturgeon culturing method

Abstract

The invention belongs to the technical field of breeding of aquatic products, particularly relates to a liquid-oxygen oxygen-increasing high-density sturgeon culturing method, and aims to overcome the defects of difficulty in control on water temperature and water quality of a culture pond, low oxygen increasing efficiency of the culture pond and difficulty in realizing high-density culture of sturgeons of a sturgeon culturing method in the prior art. The method adopts a land culture pond; the culture pond comprises a culture zone and a temperature regulating zone; the temperature regulating zone is isolated form the culture zone by a fence; a coil is arranged in the temperature regulating zone; and cold or hot circulating water is filled into the coil to control water temperature of the culture pond. The culture pond selects water on the bottom layer of a drinking water source, wherein salinity of a water body is not more than 0.05%, N-NH3 is less than 0.5 mg / L, N-NO2 is less than 0.5 mg / L, TP is less than 50 mg / L, and pH is in the range of 6.0 to 6.8; burnt lime is adopted to disinfect the water body in the culture pond; dissolved oxygen in the water body reaches 5 mg / L in a liquid-oxygen oxygen increasing manner; the sturgeons are added to be cultured; in the culturing process, the dissolved oxygen in the water body is controlled in the range of 7 to 8 mg / L; in 0.5 hour before and after baits are supplied, the dissolved oxygen in the water body is controlled in the range of 9 to 10 mg / L; and in the sturgeon culturing process, the water body in the culture pond is replaced with a fresh water source.

Description

technical field [0001] The invention belongs to the technical field of aquatic product cultivation, and in particular relates to a liquid oxygen-increased aeration method for high-density sturgeon cultivation. Background technique [0002] In the traditional aquaculture mode, due to the greater influence of environmental factors, it is difficult to guarantee the water temperature and water quality of aquaculture. In terms of water temperature, the annual temperature difference in most areas is above 30°C, while the suitable temperature difference for the growth of sturgeon is generally in the range of 15°C. Therefore, fish usually choose water with a relatively suitable temperature on the entire water surface. layer activities, greatly reducing the breeding density. In terms of water quality, fish feces are decomposed by microorganisms in the pond, and the decomposition time is relatively long. The content of harmful substances such as carbon dioxide, ammonia nitrogen, and ...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of difficult control of water body temperature and water quality in the breeding pond of the prior art, low efficiency of oxygenation in the breeding pond, and difficulty in realizing high-density breeding of the sturgeon, and provides a kind of water body temperature and water quality in the breeding pond High-density sturgeon culture method with reliable control and high oxygenation efficiency in culture ponds

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