CN112997925B - Method for improving growth of flounder fry by regulating and controlling light environment - Google Patents
Method for improving growth of flounder fry by regulating and controlling light environment Download PDFInfo
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- CN112997925B CN112997925B CN202010679085.6A CN202010679085A CN112997925B CN 112997925 B CN112997925 B CN 112997925B CN 202010679085 A CN202010679085 A CN 202010679085A CN 112997925 B CN112997925 B CN 112997925B
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- paralichthys olivaceus
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/10—Culture of aquatic animals of fish
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/06—Arrangements for heating or lighting in, or attached to, receptacles for live fish
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Zoology (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention belongs to the technical field of aquaculture, and particularly relates to a method for improving the growth of flounder fries by regulating and controlling light environment. The growth of the fry of the paralichthys olivaceus 50 days after hatching is improved by regulating the irradiation environment of the light source. According to the special preference of fishes to spectra, the invention regulates and controls the luminous environment to meet the spectrum requirement of the paralichthys olivaceus and improve the growth rate of the paralichthys olivaceus, thereby improving the economic benefit.
Description
Technical Field
The invention belongs to the technical field of aquaculture, and particularly relates to a method for improving the growth of flounder fries by regulating and controlling a light environment.
Background
The light environment, including spectrum, illumination intensity and photoperiod, is one of the most important external ecological factors in aquatic environments. Researches show that the illumination environment can affect a plurality of physiological processes of fishes, wherein the regulation and control of the photoperiod on the propagation are concerned by people, but the influence of different spectrums on the development, growth and the like of the fishes is rarely reported. In addition, different fish species and different development stages thereof have different requirements and adaptations on the light environment.
The flounder belongs to the flounder, flounder suborder, flounder family and flounder genus, has delicious meat quality and rich nutrition, and is an important marine culture fish in China. The fry of the paralichthys olivaceus which is hatched for 50 days starts benthic life, the fry after benthic life only eats mysid in nature, then starts to gradually eat young fishes such as sardines and tigers, the feeding property starts to be transformed when the body length is 11-14cm, and the water temperature, the bait and the like can influence the growth of the paralichthys olivaceus. At present, the fish opsins are various in types, such as LWS opsin sensitive to red light, RH2 opsin sensitive to green light, SWS2A opsin and SWS2B opsin sensitive to blue light and the like, and have different expression spectrums in different development stages, so that the fish possibly has different requirements and adaptations on the spectrums in different development stages. For Paralichthys olivaceus, 0 to 180 days after hatching is a fast-growing stage. However, how to accelerate growth by using the timing is not reported at home and abroad at present, and the growth is accelerated by using spectra from 50 days after hatching.
The light source of the aquaculture workshop at present in China is simple and extensive to use, and most of the used artificial light sources are straight tube fluorescent lamps or compact fluorescent lamps commonly used in civil buildings, but the light source spectrum is discontinuous. In addition, although the lamp is convenient to purchase and simple and convenient to install, the problems caused by the lamp are many, for example, the service life of the lamp is often only thousands of hours in a humid environment, and the waste of the fluorescent lamp can cause serious mercury pollution to a water source. The LED light source not only has spectral specificity and can promote growth more effectively, but also is clean and sanitary and has long service life. Therefore, the growth rate of the fry is improved by using the LED light with a specific spectrum, so that the production benefit is improved, the mechanism of the fry is researched, and the method has important significance for the continuous and healthy development of the industry and further revealing the light action mechanism.
Disclosure of Invention
The invention aims to provide a light environment regulation and control method for improving the growth of flounder fries by applying a specific spectrum LED lamp.
In order to achieve the purpose, the invention adopts the technical scheme that:
a method for improving the growth of the fry of the paralichthys olivaceus by regulating and controlling the light environment is used for improving the growth rate of the fry of the paralichthys olivaceus by regulating and controlling the irradiation environment of a light source for 50 days after the fry is cultured and incubated.
And the green light source is adopted to irradiate the fry of the paralichthys olivaceus for 205 days in the growth process of the fry of the paralichthys olivaceus which is 50 days after hatching, so that the growth rate of the fry is improved.
The illumination intensity of the green light source is 12.45umol/m 2 And/s, the photoperiod is 15L:9D.
The wavelength range of the green light is 515-565nm.
The method is characterized in that: the light source is arranged 10-12cm above the water surface of the culture water body.
The invention has the advantages and beneficial effects that:
the invention utilizes the LED lamp with specific spectrum to regulate and control the light environment of the fry of the paralichthys olivaceus, meets the spectrum requirement of the paralichthys olivaceus, and obviously improves the growth rate of the paralichthys olivaceus in the same time compared with white light irradiation no matter the whole length and the body weight of the paralichthys olivaceus, thereby shortening the culture time of the paralichthys olivaceus, saving bait, water, electricity and manpower, and effectively improving the economic benefit of industrial culture of the paralichthys olivaceus.
The specific implementation mode is as follows:
in order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in detail below with reference to specific embodiments.
The invention provides a method for improving the growth of flounder fry through a luminous environment. Namely, in a specific stage of the flounder fry, the LED lamp with a specific spectrum is used for irradiation.
The method comprises culturing Paralichthys olivaceus in white settling tank at 20-22 deg.C and water depth of 25cm, suspending 1 LED lamp above the water, irradiating 50 days after incubation with green light with wavelength of 515-565nm for 205 days at illumination intensity of 12.45umol/m 2 S; the photoperiod is 15L:9D.
Example 1
According to the existing breeding mode and the regulation and control of the following light environment, the experiment is carried out on the flounder fry which is hatched for 50 days in the aquarium building of the oceanographic research institute of Chinese academy of sciences.
Arranging a plurality of experimental incubators, culturing the paralichthys olivaceus fry in a white opaque incubator with the length of 66cm, the width of 45cm and the height of 34cm, adding fresh seawater to the water depth of 25cm, and culturing the water temperature of 20-22 ℃.1 LED lamp is suspended 10-12cm above the water surface of each incubator;
the lamps suspended on different incubators are respectively a green LED lamp (the wavelength range of the lamps is 515-565 nm) and a white LED lamp (full spectrum); each spectrum is provided with 3 parallels, and the illumination intensity is 12.45umol/m 2 And/s, photoperiod of 15L:9D, then putting the eggs into each of the arrangement boxes after hatchingCulturing 200 fish fries of 50-day lefteye flounder in the environment, aerating the water body in a conventional culture mode in the culture process, changing water 2 times every day (the water changing is carried out under the irradiation of a fluorescent lamp because the fish fries are small), and feeding the bait 4 times. The total length of each group was measured after 110 days, and the average total length of the green group was 21.69% higher than that of the white group.
The experiment shows that the green light can obviously promote the growth of the flounder fry compared with the white light in 50 to 160 days after the hatching.
Example 2
Arranging a plurality of culture tanks for experiments, continuously culturing the flounder fry in an opaque cylindrical culture tank with the outer diameter of 96cm, the inner diameter of 88cm and the height of 74cm, adding fresh seawater to the water depth of 66cm, and culturing at the water temperature of 20-23 ℃.1 LED lamp is suspended at the position 68cm above the water surface of each culture cylinder;
a green LED lamp (the wavelength range of which is 515-565 nm) is used as an experimental group, and a white LED lamp (full spectrum) is used as a reference; each spectrum is provided with 3 parallels, and the illumination intensity is 12.45umol/m 2 And/s, photoperiod of 15L:9D, then, the 160-day-hatched fry of the paralichthys olivaceus in the example 1 is put into a culture tank with corresponding light color, and cultured in the environment, the water body is inflated in a conventional culture mode in the culture process, the water is changed for 2 times every day, and the bait is fed for 3 times; after 95 days of illumination, the total length of each group of fish was measured, and the average total length of the experimental group was 27.5% higher than that of the white light group.
The above embodiment shows that the green light has obvious promotion effect on the growth of the fry of the paralichthys olivaceus from 160 days to 255 days after hatching, so that the growth rate of the paralichthys olivaceus can be obviously improved by carrying out light regulation and control on the growth stage of the paralichthys olivaceus.
The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, extension, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.
Claims (2)
1. A method for improving the growth of flounder fry by regulating and controlling light environment is characterized in that: the growth of the fry of the paralichthys olivaceus after 50 days of incubation is improved by regulating and controlling the irradiation environment of a light source;
irradiating the fry of the paralichthys olivaceus which is hatched for 50 days for 205 days by adopting a green light source in the growth process, thereby improving the growth rate of the fry;
the illumination intensity is 12.45 [ mu ] mol/m when the green light source irradiates 2 And/s, photoperiod of 15L:9D;
the wavelength range of the green light source is 515-565nm.
2. The method for improving the growth of the flounder fry by regulating the luminous environment as claimed in claim 1, which is characterized in that: the green light source is arranged 10-12cm above the water surface of the culture water body.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010679085.6A CN112997925B (en) | 2020-07-15 | 2020-07-15 | Method for improving growth of flounder fry by regulating and controlling light environment |
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| CN202010679085.6A CN112997925B (en) | 2020-07-15 | 2020-07-15 | Method for improving growth of flounder fry by regulating and controlling light environment |
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| CN112997925A CN112997925A (en) | 2021-06-22 |
| CN112997925B true CN112997925B (en) | 2023-03-14 |
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| CN115136908A (en) * | 2022-06-21 | 2022-10-04 | 佛山电器照明股份有限公司 | Culture method and culture system for improving growth rate of fish |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009125012A (en) * | 2007-11-26 | 2009-06-11 | Iwate Prefecture | Method for sex manipulation in fish |
| JP2012065625A (en) * | 2010-09-27 | 2012-04-05 | Kinki Univ | Light wavelength control rearing method for larvae of fishes |
| KR20120083185A (en) * | 2011-01-17 | 2012-07-25 | 임봉수 | Method for growth promotion of fish using light wavelength |
| CN102748663A (en) * | 2012-06-18 | 2012-10-24 | 中国水产科学研究院黄海水产研究所 | Underwater annular light-emitting diode illumination system of industrial fish culture and application |
| CA2932946A1 (en) * | 2013-12-10 | 2015-06-18 | Philips Lighting Holding B.V. | An artificial lighting system for fish and a method of providing fish lighting |
| JP2018139548A (en) * | 2017-02-28 | 2018-09-13 | 学校法人近畿大学 | Breeding method |
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2020
- 2020-07-15 CN CN202010679085.6A patent/CN112997925B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009125012A (en) * | 2007-11-26 | 2009-06-11 | Iwate Prefecture | Method for sex manipulation in fish |
| JP2012065625A (en) * | 2010-09-27 | 2012-04-05 | Kinki Univ | Light wavelength control rearing method for larvae of fishes |
| KR20120083185A (en) * | 2011-01-17 | 2012-07-25 | 임봉수 | Method for growth promotion of fish using light wavelength |
| CN102748663A (en) * | 2012-06-18 | 2012-10-24 | 中国水产科学研究院黄海水产研究所 | Underwater annular light-emitting diode illumination system of industrial fish culture and application |
| CA2932946A1 (en) * | 2013-12-10 | 2015-06-18 | Philips Lighting Holding B.V. | An artificial lighting system for fish and a method of providing fish lighting |
| JP2018139548A (en) * | 2017-02-28 | 2018-09-13 | 学校法人近畿大学 | Breeding method |
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