Breeding method for improving Carassius auratus cuvieri Temminck Schlegel and construction method of improved Carassius auratus cuvieri Temminck Schlegel strain

A technology of white crucian carp and female parent, which is applied in the field of breeding methods and the establishment of strains, can solve the problems of rotten tail and low muscle protein content of Japanese white crucian carp, and achieve strong disease resistance, high fertilization rate and hatching rate, rapid growth effect

Active Publication Date: 2019-02-15
HUNAN NORMAL UNIVERSITY
View PDF5 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the Japanese white crucian carp is prone to rotten tails and other diseases during the breeding process, and the muscle protein content of the Japanese white crucian carp is low

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
  • Breeding method for improving Carassius auratus cuvieri Temminck Schlegel and construction method of improved Carassius auratus cuvieri Temminck Schlegel strain
  • Breeding method for improving Carassius auratus cuvieri Temminck Schlegel and construction method of improved Carassius auratus cuvieri Temminck Schlegel strain
  • Breeding method for improving Carassius auratus cuvieri Temminck Schlegel and construction method of improved Carassius auratus cuvieri Temminck Schlegel strain

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A method for breeding improved Japanese white crucian carp of the present invention, comprising the steps of:

[0035] 1. Selection of parents and artificial intensive breeding: In the F1 generation of crossbreeding crucian carp with Japanese white crucian carp as the female parent and group-headed bream as the male parent, select the Allotetraploid crucian bream with 148 chromosomes; the selected allotetraploid crucian bream is cultured separately in a pond with a depth of about 2 meters, and the bait is about 30% protein content. Artificial compound feed, the breeding density is 2000 fish / mu, and the ratio of male to female is about 1:5; 3-4 months before the breeding season, two-year-old and above are selected from allotetraploid crucian bream, and the characteristics of sexual maturity are obvious Female allotetraploid crucian carp with good signs (good signs are good body shape, bright body color, strong physique, and no disease or injury) are used as the female pa...

Embodiment 2

[0052] A method for establishing an improved Japanese white crucian carp strain of the present invention, comprising the steps of:

[0053] 1. Improving the gynogenesis of Japanese white crucian carp

[0054] When the improved diploid Japanese white crucian carp obtained by the breeding method of the above-mentioned embodiment 1 grows to one year old, in the breeding season (4-6 months), when the water temperature is stable above 20°C, the characteristics of selective maturity are obvious (abdomen Inflation) female improved diploid Japanese white crucian carp as the female parent fish, select male bream brood fish with obvious sexual maturity characteristics (can extrude milky white semen); inject lutein-releasing hormone analogue (LRH-A) and The mixed oxytocic agent of chorionic gonadotropin (HCG) is used to induce labor, the dosage of LRH-A is 10μg / kg, and the dosage of HCG is 600IU / kg; first inject the female parent fish, and then inject the father parent fish after 4-5h ,...

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

No PUM Login to view more

Abstract

The invention discloses a breeding method for improving Carassius auratus cuvieri Temminck Schlegel. Allotetraploid Carassius auratus bream with the chromosome number of 148 is selected from the filial generation obtained with the Carassius auratus cuvieri Temminck Schlegel as the female parent and Megalobrama amblycephala as the male parent, the allotetraploid Carassius auratus bream is subjectedto artificial intensive culture, artificial parturition hastening and dry artificial insemination, oosperm is incubated by dropping water and then raised to obtain the selfed generation, and sexuallyfertile improved diploid Carassius auratus cuvieri Temminck Schlegel with the chromosome number of 100 is obtained. The improved Carassius auratus cuvieri Temminck Schlegel grows fast and is high inrate of reproduction, small in head, high in body back, good in meat quality and high in disease resistance. The invention further provides a construction method of the improved Carassius auratus cuvieri Temminck Schlegel strain. The improved Carassius auratus cuvieri Temminck Schlegel strain is sexually fertile and stable in inheritance, and the construction method has an important significance in genetic breeding and biological evolution of fishes; in production and application, due to construction of the improved Carassius auratus cuvieri Temminck Schlegel strain, a high-quality genetic resource library is provided for breeding novel excellent Carassius auratus.

Description

technical field [0001] The invention belongs to the field of fish hybrid breeding, and in particular relates to a breeding method for improving Japanese white crucian carp and a method for establishing a strain thereof. Background technique [0002] Japanese white crucian carp (Carassius auratus cuvieri Temmincket Schlegel) is a diploid fish (2n=100) belonging to Cyprinidae and Cyprinidae in taxonomy; Japanese white crucian carp is large in size, silvery in color, omnivorous, and reproduces It is a high-quality fish with fast growth and high economic benefits. However, the Japanese white crucian carp is prone to diseases such as rotten tails during the breeding process, and the muscle protein content of the Japanese white crucian carp is low. Therefore, the establishment of an improved variety of Japanese white crucian carp with strong disease resistance and good meat quality has important application value in aquatic products. [0003] Hybrid breeding is one of the most w...

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
Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/10
CPCA01K61/10Y02A40/81
Inventor 刘少军胡方舟吴昌范晶晶王石陶敏张纯覃钦博罗凯坤
Owner HUNAN NORMAL UNIVERSITY
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