Supercharge Your Innovation With Domain-Expert AI Agents!

Method for cross breeding of Channa argus and Channa asiatica

A technology of snakeheads and snakeheads, which is applied in the field of breeding, can solve problems such as the registration of hybrid breeding of snakeheads and snakeheads that have not been seen, the small area of ​​large-scale culture, and the meat quality is not tender enough. The method is simple, the cultivation time is short, and the meat is tender. Effect

Pending Publication Date: 2021-12-21
JIANGSU POLYTECHNIC COLLEGE OF AGRI & FORESTRY
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Based on the above research results, it is shown that the hybridization of snakeheads and snakeheads has been applied in production. Moon snakeheads and snakeheads belong to the same genus and different species. The current cultured snakeheads belong to the snakehead family. There are many diseases in the medium, and the meat quality is not tender enough compared with the moon snakehead; the meat of the moon snakehead is tender and delicious, but the body is small and the growth rate is slow, and it has high environmental requirements. The current large-scale breeding area is small
Haven't seen any reports about the crossbreeding of snakeheads and snakeheads

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
  • Method for cross breeding of Channa argus and Channa asiatica
  • Method for cross breeding of Channa argus and Channa asiatica
  • Method for cross breeding of Channa argus and Channa asiatica

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] 1. Parental cultivation

[0066] In October of the previous year, select the moon snakeheads over 1 full age, without disease and injury, and weigh more than 100g, and the black snakeheads over 2 years old, weighing more than 600g, as the parents of hybrid breeding, and breed them in ponds. The two kinds of fish are separated. Cultivate with a density of 600 tails per mu. Feed the snakehead puffed feed throughout the whole process. The daily feeding rate is 5% of the body weight, 3 times a day, and the water level is kept at 1.5-2m during the cultivation process. Bacillus and photosynthetic bacteria are used every week Adjust the water quality; in November, as the temperature drops, the species of fish will be transferred to the greenhouse to continue to cultivate.

[0067] 2. Strengthen cultivation

[0068] In March of the next year, we will adopt a gradual warming method to strengthen the cultivation of snakeheads and snakeheads. Feed high-protein compound feed comb...

Embodiment 2

[0108] Embodiment 2 adopts the same method of embodiment 1, the difference is:

[0109] In step (3), in May, select female snakeheads with mature gonads, weighing more than 750 g, with a swollen and soft abdomen, obvious grooves in the middle of the upward abdomen, obvious outline of the ovary, and slightly red and swollen protruding genital pores; males with mature gonads Moon Channa, weighing more than 300g, has a narrow, slightly protruding genital opening, with reddish ends, and semen flows out when squeezed gently on both sides of the abdomen.

[0110] In step (4), the oxytocin drugs include luteinizing hormone releasing hormone analogue No. 2 (LRH-A2) and chorionic gonadotropin (HCG). The injection dose of snakehead female is as follows: HCG (1200IU / kg) + LRH-A2 (10μg / kg), with one injection; the dose of male snakehead HCG (900IU / kg) + LRH-A2 (8 μg / kg) , using the second injection method, 1 / 3 of the first injection dose, with an interval of 18 hours between the two need...

Embodiment 3

[0114] The black moon hybrid snakehead seed cultivated in embodiment 1 and 2 is tested.

[0115] Adopt the method of embodiment 1 and 2, carry out breeding production, measure the hatching rate and the emergence rate of the seed of black moon hybrid snakehead.

[0116] The breeding method of the snakehead adopts the literature: Zhu Lin, Li Yingsen, Feng Xiaoyu, Guo Shuirong, Xie Nan, Zhu Shuren. Overview of the cultivation and artificial seedling technology of the snakehead[J].Jiangsu Agricultural Science,2011,39(03):298-300.

[0117] The breeding method of Channa chinensis adopts the literature: Lin Dongnian. The whole artificial propagation experiment of Channa chinensis[J]. Water Conservancy and Fishery, 2005(03):34-35.

[0118] The breeding method of hybrid snakehead adopts literature: Feng Xiaoyu, Wang Yuxi, Xie Nan, Guo Shuirong, Liu Xinyi, Yao Guigui. Research on artificial propagation and seedling cultivation technology of hybrid snakehead[J].Freshwater Fishery,2010,40...

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 method for cross breeding of Channa argus and Channa asiatica, which comprises the following steps: parent cultivation: selecting Channa argus and Channa asiatica as cross breeding parents for cultivation in autumn of the year before breeding; intensive cultivation: in the second year, transferring the parents of the Channa argus and Channa asiaticainto a greenhouse for intensive cultivation; parent selection: selecting Channa argus and Channa asiatica with mature gonad as parents; artificial spawning induction: performing artificial spawning induction on the selected Channa argus and Channa asiatica; artificial insemination: adopting dry fertilization; hatching management: hatching fertilized eggs, and hatching fries out of membranes after fertilization; and fry breeding: breeding the hatched and membrane-out fries until the fries grow to about 1-2 cm, and then transferring the fries into a pond for breeding. According to the method, far-source hybridization is carried out on the Channa argus and Channa asiatica through a hybridization breeding technology, and the tender meat quality of the Channa asiatica and the excellent growth traits of the Channa argus can be obtained through gene recombination, so that a new variety which is high in growth speed, high in disease resistance, high in adaptive capacity and tender in meat quality is obtained, and the breeding economic benefit is improved.

Description

technical field [0001] The invention belongs to the field of breeding, and in particular relates to a method for hybrid breeding of snakeheads and snakeheads. Background technique [0002] Cross breeding is the most classic breeding method. Hybridization can select offspring individuals with excellent traits of both parents through the separation and recombination of parental genes. According to the genetic relationship between parents, hybridization can be divided into close hybridization and distant hybridization. Distant hybridization refers to hybridization between species, genera, and subfamilies, and even hybridization between biological types that are more distantly related. It can recombine the genomes of parents and change the phenotype and genotype of hybrid offspring. At the same time, it can break through intraspecific restrictions and expand genetic variation, thereby producing new variant types or new species. In fishery, the use of heterosis has become an i...

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 王煜恒陈军周广帅王煜轩王子怡颜子豪张子琳王会聪张坤
Owner JIANGSU POLYTECHNIC COLLEGE OF AGRI & FORESTRY
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com