Simple method for rapidly recognizing males and females of salmon and trout juvenile fishes

A technology for juvenile fish and salmon trout, which is applied in the field of rapid identification of male and female salmon and trout juveniles, can solve the problems of chemical substance harm to human body, long identification cycle, complicated tissue sectioning technology steps, etc., so as to avoid economic losses and quickly on-site discriminating effect

Inactive Publication Date: 2013-12-11
MARICULTURE INST OF SHANDONG PROVINCE
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The gonads of juvenile fish have just begun to develop, and the gonad tissue is small, so it cannot be identified by the identification method of adult fish. The traditional method generally uses tissue slice technology, but the tissue slice

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Simple method for rapidly recognizing males and females of salmon and trout juvenile fishes
  • Simple method for rapidly recognizing males and females of salmon and trout juvenile fishes

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0023] Example 1

[0024] The simple and convenient method for quickly identifying male and female salmon and trout juveniles of the present invention includes the following steps:

[0025] 1. Take fresh salmon and trout juveniles (10g and above), dry the surface water of the juveniles with a towel, and place them on the dissection tray. Take out the gonads. The gonads are located at the top of the abdominal cavity near the head. They are generally white and about 1 to 1.5 cm long.

[0026] 2. Place the gonads on the glass slide, peel off the surface film, and expose the internal tissues (such as figure 1 ), and try to spread the gonadal tissue to facilitate microscopic observation.

[0027] 3. Put a few drops of water on the spread gonadal tissue so that the gonadal tissue is completely immersed in the water.

[0028] 4. Place the glass slide under the microscope and observe under the microscope of 100 times.

[0029] 5. The cells in the gonadal tissue are round or nearly circular are ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Lengthaaaaaaaaaa
Login to view more

Abstract

The invention discloses a simple method for rapidly recognizing males and females of salmon and trout juvenile fishes. The method comprises the following steps that firstly, the gonad of one salmon and trout juvenile fish is taken out, and the pellicle of the gonad is removed so that the internal tissue of the gonad can be exposed; secondly, water is dripped on the internal organization of the gonad; the gonad is observed under a microscope, if the cells in the gonad tissue are round or approximately round, the fish is a female fish and if the cells in the gonad tissue are arranged in a dispersed shape, the fish is a male fish. By the adoption of the simple method for rapidly recognizing the males and the females of the salmon and trout juvenile fishes, a user can recognize the sex of the juvenile fishes timely, early, and rapidly and as early as possible in the process of fry cultivation and aquaculture production of the salmon and trout fishes, and the female ratio of fry is grasped; if the female ratio is high, aquaculture production can go on, and if the female ratio is low, the fry can be abandoned timely and fry culturing or purchasing can be conducted again; therefore, large economic losses and the waste of time are avoided.

Description

technical field [0001] The invention belongs to the technical field of marine aquatic products, relates to the field of sex identification of salmon and trout, and in particular relates to a simple and convenient rapid identification method for juvenile salmon and trout. Background technique [0002] In the case of artificial breeding, salmon and trout (rainbow trout, Atlantic salmon, etc.) generally reach sexual maturity at 2 to 3 years old, and female fish generally reach sexual maturity one year later than male fish, that is, female fish have more growth periods than male fish before sexual maturity One year, so larger size commercial fish can be obtained. Undoubtedly, the all-female technology prolongs the growth time of farmed fish to a certain extent, and is more conducive to the production of more large-scale commercial fish. [0003] Research on fish reproductive biology is the basis of fish breeding, and fish sex identification technology is a key technology for ar...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 胡发文房慧王雪张少春菅玉霞高凤祥李莉潘雷郭文
Owner MARICULTURE INST OF SHANDONG PROVINCE
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap