A method for body color control of adult flounder

A technique for the development of plaice flounder and adult body, which is applied in the field of body color regulation of plaice flounder adults, can solve the problems of small sales volume, influence on the commodity value of plaice flounder, promotion and breeding scale, and inconspicuous typical characteristics of plaice flounder, etc. The effect of raising the price of goods

Inactive Publication Date: 2017-12-08
YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the breeding process, it was found that, unlike other flounder fishes, adult flounder has abnormal body color, that is, the seedlings with normal body color, after a period of breeding, the eye side will gradually blacken until the whole body is black. , so that the typical characteristics of the round spots unique to the star flounder are not obvious (such as figure 1 As shown), there is a large difference in body color from wild individuals, and the melanization ratio of the eye side of some commercial fish cultured in some workshops or manufacturers is sometimes as high as 80% or more
Because this kind of commercial fish with black body color is unattractive and its typical characteristics are not obvious, it is difficult to be recognized and recognized by the market. The market sales price is low and the sales volume is small, which seriously affects the commodity value and the promotion of breeding of star flounder. scale

Method used

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  • A method for body color control of adult flounder
  • A method for body color control of adult flounder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) The effect of roof light transmittance on the body color of the star flounder

[0023] The project team adopted 3 workshops with different roof light transmittance: 1) The roof is made of glass steel tiles with 0 light transmittance; 2) The glass steel tiles with roof light transmittance of 0 and 30% are arranged in a ratio of 6:1; ) FRP tiles with roof light transmittance of 0 and 60% are arranged in a ratio of 1:1. In addition, two 100w incandescent lamps are installed in the corridor of each workshop for lighting, so as to facilitate the daily management of the workshop personnel such as feeding fish and pouring ponds. After 6 months of breeding experiments, the results showed that the normal body color rates of star flounder with completely melanized eyes were 10%, 20% and 50%, respectively. figure 2 shown.

[0024] (2) Effects of different color light sources on the body color of the star flounder

[0025] The project team conducted a test on the influence ...

Embodiment 2

[0029] In 2014, we carried out aquaculture and production of star flounder in Shandong Kehe Ocean High Technology Co., Ltd., and regulated its body color. First of all, the roof of the workshop was remodeled, and the original opaque fiberglass tiles were changed to alternate placement of fiberglass tiles with 0 and 60% light transmittance. Two incandescent lamps with a power of 100w were installed diagonally in each breeding pond, the colors were red and blue, and the distance between the lamps and the water surface was 0.8m. The breeding method is the same as that of the star flounder in previous years. After one year of cultivation, the normal body color rate of the flounder has reached 75%, while the adults cultured in the unmodified workshop (the roof of the workshop is completely covered with opaque glass steel tiles, and two 100w incandescent lamps are installed in the corridor of the workshop) The normal rate of body color is lower than 10%. Therefore, this method is u...

Embodiment 3

[0031] In 2014, we carried out aquaculture and production of star flounder in Shandong Kehe Ocean High Technology Co., Ltd., and regulated its body color. The roof of the workshop is alternately placed with FRP tiles with a light transmittance of 0 and 60%. Two blue incandescent lamps with a power of 40w and 100w are installed diagonally in each breeding pond. The incandescent lamps are 0.8m away from the water surface, and the illumination time is 4:00-8:00 and 18:00-22:00. The breeding method is the same as that of the star flounder in previous years. After one year of cultivation, the normal body color rate of the flounder has reached 78%, while the adults raised in the unmodified workshop (the roof of the workshop is completely covered with opaque fiberglass tiles, and two 100w incandescent lamps are installed in the corridor of the workshop) The normal body color rate is lower than 10%. Therefore, this method can also realize the regulation of the body color of the star ...

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Abstract

The invention discloses a verasper variegatus adult body color adjustment and control method, and belongs to the technical field of aquaculture. The verasper variegatus adult body color adjustment and control method comprises the steps of workshop roof reconstruction and illumination adjustment; according to the workshop roof reconstruction step, two or more kinds of covering objects which are different in luminousness are adopted to be arranged alternatively; according to the illumination adjustment step, two to four monochromatic light sources with different powers or two to four light sources with different colors and the same power are evenly installed in each culture pond. According to the verasper variegatus adult body color adjustment and control method, the adaptability of verasper variegatus body colors to the environment is utilized to adjust the light-admitting quality, the illumination intensity and the light source color of a culture workshop roof, unevenness of the illumination intensity and the colors is caused artificially, the normal proportion of the body colors of cultured verasper variegatus adults is over 70%, and the commodity price of verasper variegatus is significantly raised.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a method for regulating the body color of an adult flounder. Background technique [0002] Verasper variegatus (Verasper variegatus) belongs to the order Pleuronectiformes, the family Pleuronectidae, and the genus Verasper. It is commonly known as piebald treasure, flower leopard, and lace claw. The East China Sea mainly includes the coastal areas of Liaoning, Hebei and Shandong. Star flounder is an important representative fish species in the order Pleuriformes. It is benthic, large in size, oval in shape, gorgeous in color and high in nutritional value. The "flower" of the folk proverb "chunhuaqiu sole" is "Piebald treasure". It is a traditional rare fish, and its market price is relatively high in my country, Japan, North Korea and South Korea. Due to the low temperature of its spawning water, weak fecundity, coupled with overfishing and environmental changes,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/10
CPCA01K61/00Y02A40/81
Inventor 刘长琳陈四清胡建成燕敬平王志军
Owner YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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