Method for directionally breeding finless eel male parents

A technology of rice field eel and male, which is applied in the field of directional cultivation of rice field eel male parents, which can solve the problems of speeding up the time of sex change of rice field eel parents and the difficulty of finding male parents

Inactive Publication Date: 2015-01-14
YANGTZE UNIVERSITY
View PDF7 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiencies of the prior art, the object of the present invention is to provide a method for directional cultivation of the male eel parents, which can speed up the sexual transition time of the eel parents, obtain a l...

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] Implement the present invention, take the Jianghan Plain area as an example, can carry out according to the following steps:

[0015] (1) Batch acquisition and temporary rearing of postpartum female eels: put net cages with a size of 100cm×150cm×100cm into ponds, and plant an appropriate amount of floating water plants A. The growth area is about 70% of the net cage area; the female rice field eel parents after spawning in June to July are caught from the breeding cage, and the female rice field eels with an individual weight of 50-75g are selected and put into the pond planted with Alpinia sinensis The individual rice field eels are kept in net cages until the first ten days of August. Strict grading is carried out to ensure that the individual rice field eels in each cage are of the same size, so as to avoid mutual harm between individuals. The amount of rice field eels in each cage is 5kg / m 2 . During the temporary breeding period, a mixture of eel-specific compou...

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 relates to a method for directionally breeding finless eel male parents and belongs to the technical field of fishery scientific application. The method is characterized by comprising the following steps: continuously fasting for 30 days after the female finless eel spawns, thereby quickening the masculinization conversion of the spawned female finless eel; recovering the feeding for the fasted finless eel; stopping feeding till the water temperature is reduced to 15 DEG C in the last ten-day of November in the same year; and then causing the finless eel to stop eating and start to overwinter; starting to feed when the finless eel starts to eat while the water temperature is above 15 DEG C in April in the next year; transferring the finless eel to the front side of a breeding net box after feeding till the last ten-day of April. According to the method provided by the invention, the spawned female finless eel parent is converted to the finless eel male parent 5 months earlier, the masculinization rate is above 95%, 100-150g functional finless eel male parents capable of normally mating in a mating season can be acquired in batches, and the acquired functional finless eel male parents can be used for effectively solving the problems of large size and difficulty in finding of the male parent during an artificial finless eel breeding process.

Description

Technical field: [0001] The invention relates to a method for directional cultivation of rice field eel male parents, which belongs to the technical field of fishery science application. Background technique: [0002] Rice field eel (Monopterus albus) is one of the famous freshwater fishes that has developed rapidly in recent years in my country. Its main breeding areas are located in Hubei, Hunan, Anhui, Jiangxi, Zhejiang and other provinces in the middle and lower reaches of the Yangtze River; rice field eel farming has become an important aquatic product in these areas. The leading industry of aquaculture. [0003] But at present, the seedlings needed for rice field eel farming are mainly wild resources, and the wild rice field eel seedlings cannot meet the scale and industrialization needs of rice field eel breeding in terms of stocking time, quality, quantity, and source. Therefore, rice field eel seedlings The manual mass production of high-quality eels is an inevitabl...

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
CPCY02A40/81A01K61/00
Inventor 阮国良杨代勤袁汉文苏应兵陈芳杨小林
Owner YANGTZE 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