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Method for improving growth of paralichthys olivaceus fries by regulating and controlling light environment

A technology for regulating light and fry, which is applied in fish farming, application, climate change adaptation, etc. It can solve the problems of extensive light source, discontinuous light source spectrum, mercury pollution of fluorescent lamp water source, etc., so as to shorten the breeding time, increase the growth rate, improve The effect of economic benefits

Active Publication Date: 2021-06-22
INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But how to make use of this opportunity to accelerate growth, there is no report at home and abroad on the use of spectrum to promote growth from 50 days after hatching
[0004]The use of light sources in domestic aquaculture workshops at present is simple and extensive, and most of the artificial light sources used are straight tube fluorescent lamps or compact fluorescent lamps commonly used in civil buildings, but this A light source with a discontinuous spectrum
In addition, although it is easy to purchase and easy to install, it causes many problems. For example, the life span in a humid environment is often only a few thousand hours, and the discarding of fluorescent lamps will cause serious mercury pollution in water sources.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] According to the existing breeding and raising methods, according to the regulation and control of the following light environment, experiments were carried out on flounder fry 50 days after hatching in the Aquarium Building of the Institute of Oceanography, Chinese Academy of Sciences.

[0019] A plurality of incubation boxes for experiments are set, and flounder fry are cultivated in a white opaque incubation box with a length of 66 cm, a width of 45 cm, and a height of 34 cm. Fresh seawater is added to a water depth of 25 cm, and the temperature of the cultivation water is 20-22°C. One LED light is suspended 10-12cm above the water surface of each incubator;

[0020] The lights suspended on different incubators are green LED lights (the wavelength range is 515-565nm) and white LED lights (full spectrum); each spectrum is set to 3 parallel, and the light intensity is 12.45umol / m 2 / s, the photoperiod is 15L:9D, and then 200 flounder fry 50 days after hatching are put ...

Embodiment 2

[0023] Set up a plurality of breeding tanks for experiments, continue to cultivate the above-mentioned flounder fry in an opaque cylindrical culture tank with an outer diameter of 96 cm, an inner diameter of 88 cm, and a height of 74 cm, add fresh seawater to a water depth of 66 cm, and cultivate water temperature of 20-23 ° C. One LED light is suspended 68cm above the water surface of each breeding tank;

[0024] The green LED lamp (its wavelength range is 515-565nm) is used as the experimental group, and the white LED lamp (full spectrum) is used as the control; each spectrum is set in 3 parallels, and the light intensity is 12.45umol / m 2 / s, the photoperiod is 15L: 9D, and then the flounder fry of 160 days after hatching in Example 1 is put into the breeding tank of corresponding light color, cultivates under the above-mentioned environment, presses the mode of conventional cultivation in the cultivation process to The water body was inflated, the water was changed twice a ...

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PUM

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Abstract

The invention belongs to the technical field of aquaculture, and particularly relates to a method for improving growth of paralichthys olivaceus fries by regulating and controlling a light environment. The growth of the paralichthys olivaceus fry 50 days after incubation is improved by regulating and controlling the irradiation environment of the light source. The light environment is regulated and controlled according to the specific favor of fish to the spectrum, so that the requirement of the paralichthys olivaceus for the spectrum is met, the growth rate of the paralichthys olivaceus is increased, and the economic benefit is increased.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a method for improving the growth of flounder fry by regulating the light environment. Background technique [0002] Light environment, including spectrum, light intensity and photoperiod, is one of the most important external ecological factors in the aquatic environment. Studies have shown that the light environment will have an impact on multiple physiological processes of fish. Among them, the regulation of photoperiod on reproduction has been paid attention to, but there are few reports on the impact of different light spectra on fish development and growth. In addition, different fish species and their different developmental stages have different requirements and adaptations to the light environment. [0003] Flounder, belonging to the order Pleuriformes, suborder Flounder, family Flounder, and genus Flounder, has delicious meat and rich nutrition, and is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/10A01K63/06
CPCA01K61/10A01K63/06Y02A40/81
Inventor 邹玉霞尤锋吴志昊王丽娟彭壮壮王雯祥梁少帅吴巧婉邹聪聪
Owner INST OF OCEANOLOGY - CHINESE ACAD OF SCI