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A method for identifying live and fresh Channa sinensis from different sources

A technology of Chinese black pond snakehead and source, applied in the application, fish farming, animal husbandry and other directions, can solve the problems of ecological breeding of Chinese black pond snakehead nutritional value and economic value difference, difficult to realize artificial breeding, low identification accuracy and other problems , to achieve the effect of no professional requirements, high accuracy, simple and convenient operation

Active Publication Date: 2019-05-14
GUANGXI MANGROVE RES CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

How to identify the source of fresh and live products of Channa sinensis on the market, there is no scientific and effective identification method at present, only relying on experience to judge from the appearance of body color, fat and thin, etc., the identification accuracy rate is low, and operators are required to have relevant experience
Because of this, there is no simple and scientific way to identify the breeding source of Chinese snakehead in the market, and it is difficult to realize the difference in nutritional value and economic value of artificial breeding, ecological breeding and wild Chinese snakehead

Method used

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  • A method for identifying live and fresh Channa sinensis from different sources
  • A method for identifying live and fresh Channa sinensis from different sources
  • A method for identifying live and fresh Channa sinensis from different sources

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] Samples and sources: In September 2016, a total of 84 live Snakena chinensis were collected, 28 from wild sources, 28 from mangrove ecological culture sources and artificial pond culture, of which:

[0073] Wild populations were purchased from Shanxin Village, Jiangping Town, and fishermen caught them with centipede cages.

[0074] The mangrove ecological breeding population was provided by the Guangxi Mangrove Research Center Pearl Harbor Coastal Ecological Experiment Station located in Shijiaobu, Jiangshan Township. The seedlings were released in April 2016. The size of the seedlings was 27 / 500g, and the source of the seedlings was wild. The breeding method is as follows: a pipeline is buried in the soil under the mangrove forest, and there is long flowing water in the pipeline. Part of the bait for cultured Chinese snakehead comes from artificial feeding, and the rest comes from natural small fish, shrimp and crab shells in the natural water flowing through the pipeli...

Embodiment 2

[0099] Samples and sources: In April 2017, 51 living bodies of Channa sinensis were collected, including 11 from wild sources, 20 from mangrove land pipeline ecological breeding, and 20 from artificial pond breeding. The specific breeding methods of each sample are the same as in Example 1 .

[0100] 1. Anesthesia:

[0101] The fish used in the experiment were transported back to the laboratory in a foam box to moisturize and dry, and they were raised temporarily in semi-seawater with a salinity of 15‰, and were processed and measured within 24 hours. Anesthetize the fish to be tested with semi-seawater containing 60-100 mg / L ethyl m-aminobenzoate methanesulfonate (MS-222) before measurement for 8-10 minutes, and measure after the water on the surface of the fish is blotted with absorbent paper. The salinity of semi-sea water is 12-20‰.

[0102] 2. Sample shooting:

[0103] Fix the digital camera (Canon G12) on the top of the table with a tripod, make the lens vertical to t...

Embodiment 3

[0123] Samples and sources: In May 2017, 87 live Snakena chinensis were collected, including 27 from wild sources, 30 from mangrove ecological culture, and 30 from artificial pond culture. The specific breeding methods of each sample are the same as in Example 1.

[0124] 1. Sample shooting:

[0125] Use a selfie stick to fix the mobile phone (HUAWEI MATE8) with camera function above the table, make the lens perpendicular to the table, place the fresh and alive Chinese snakehead to be tested side up on the table, and align the middle of the side of the fish with the center of the lens , adjust the distance between the lens and the table so that the complete fish body in the photo occupies about three-quarters of the entire picture, take a photo, and place a label marked with the sample number next to each fish.

[0126] 2. Morphometric measurements

[0127] Input the photo of the sample into the computer, and use Image-Pro Plus6.0 software to perform morphological measurement...

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Abstract

The invention provides a method for authenticating fresh and live bostrichthys sinensis with different sources. The method comprises the steps of shooting a photo for fresh and live bostrichthys sinensis to be measured, and obtaining traditional shape measurement data (body length, body height and the like) and frame measurement data (the spacing from the rostral side to the starting point of the first dorsal fin, the spacing from the starting point of the pelvic fin to the starting point of the first dorsal fin and the like) from the photo, and adopting the data as an original data source, conducting proportion processing on the traditional shape measurement data, conducting correction by making the frame measurement data divide the body length of the traditional shape measurement data, and substituting the result into an authentication formula so that the source of a bostrichthys sinensis sample can be effectively judged. According to the method for authenticating fresh and live bostrichthys sinensis with the different sources, through the mode of shooting the photo and obtaining the original data from the photo, the operation steps needed by authentication are effectively simplified, and the work efficiency of the authentication is improved. Meanwhile, the authentication method is high in accuracy, through the adoption of the authentication method, the authentication accuracy for fresh and live bostrichthys sinensis with a wild source, a mangrove ecological breeding source and an artificial pool breeding source can reach 93% or above.

Description

technical field [0001] The invention relates to the technical field of aquatic product identification, in particular to a method for identifying fresh and alive Chinese snakeheads from different sources. Background technique [0002] Chinese snakehead (Bostrychus sinensis) belongs to the class Neopin, order Perciformes, family Channaidae, and the genus Bostrychus sinensis. It inhabits shallow seas, inner bays and estuary brackish and fresh waters, and also enters fresh water. It winters in potential muddy sand bottoms and is commonly used by folks. Supplement after surgery to promote wound healing. At present, Chinese snakeheads are mainly cultivated artificially in ponds. Zhangzhou, Fujian Province has a relatively large scale of cultivation. There are only more than 300 farmers in the Chinese snakehead breeding association in Xingchen Town, Dongshan County, with an annual output of more than 600 tons and an annual output value of nearly 70 million. Yuan. [0003] Mangrov...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/95
CPCA01K61/95
Inventor 阎冰陆宇哲杨明柳高霆炜吴斌
Owner GUANGXI MANGROVE RES CENT
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