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Parent fish culturing method for scaled artificial breeding of finless ell

A technology of artificial reproduction and cultivation method, applied in the field of aquaculture, can solve the problems of few male fish and unable to meet the needs of artificial reproduction and the like

Inactive Publication Date: 2013-04-03
YANGTZE RIVER FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the number of male fish in the parent fish group is very small, which still cannot meet the needs of artificial reproduction

Method used

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  • Parent fish culturing method for scaled artificial breeding of finless ell
  • Parent fish culturing method for scaled artificial breeding of finless ell
  • Parent fish culturing method for scaled artificial breeding of finless ell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The following is an example of how to cultivate 600 catties and the size of 4 tails / jins eel females after cultivation.

[0036] A kind of broodstock culture method of large-scale artificial propagation of yellow eel, its steps are as follows:

[0037] 1. Erection of cages: 10 cages need to be erected in the pond: the mesh is 0.7mm and the area is 2×2M 2 , the water depth in the cage is 15cm, and the cage is 60cm above the water surface. Put 100kg of water peanuts in each cage.

[0038] 2. Putting fingerlings: The putting time is mid to late July every year, and the water temperature is constant above 26℃. The wild fish species with a size of 15 fish / catties are put in, and the stocking density is 4.5 catties / M 2 . 18 catties of wild fish are placed in each cage. One week before the fingerlings are put in, the cages are disinfected with povidone-iodine at a concentration of 5g / M 2 .

[0039] 3. Food taming: start feeding after 3 days of feeding the fingerlings. ...

Embodiment 2

[0054] The following is an example of how to cultivate 5,000 jin and the size of 5 tails / jins eel female after cultivation is used to illustrate the method of cultivating the oyster eel female.

[0055] A kind of broodstock culture method of large-scale artificial propagation of yellow eel, its steps are as follows:

[0056] 1. Cage erection: 100 meshes of 0.7mm need to be erected in the pond, with an area of ​​2×2M 2 , the water depth in the cage is 20cm, and the cage is 50cm above the water surface. Put 100kg of water peanuts in each cage.

[0057] 2. Putting fingerlings: The putting time is mid to late July every year, and the water temperature is constant above 26℃. The wild fish species with a size of 20 fish / catties are put in, and the stocking density is 4.0 catties / M 2 . 16 catties of wild fish are placed in each cage. One week before the fingerlings are put in, the cages are disinfected with povidone-iodine at a concentration of 5g / M 2 .

[0058] 3. Food taming...

Embodiment 3

[0068] The following is an example of how to cultivate 20,000 catties and the size of 6 tails / jins eel females after cultivation, to illustrate the method of cultivating female yellow eels.

[0069] A kind of broodstock culture method of large-scale artificial propagation of yellow eel, its steps are as follows:

[0070] 1. Cage erection: 500 meshes of 0.7mm need to be erected in the pond, with an area of ​​2×2M 2 , the water depth in the cage is 25cm, and the cage is 40cm above the water surface. Put 100kg of water peanuts in each cage.

[0071] 2. Putting fingerlings: The putting time is mid to late July every year, and the water temperature is constant above 26℃. The wild fish species with a size of 25 fish / catties are put in, and the stocking density is 3.5 catties / M 2 . 14 catties of wild fish are placed in each cage. One week before the fingerlings are put in, the cages are disinfected with povidone-iodine at a concentration of 5g / M 2 .

[0072] 3. Food taming: st...

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Abstract

The invention discloses a parent fish culturing method for scaled artificial breeding of a finless ell. The method has the advantages of simplicity and easy implementation, and is suitable for the scaled artificial breeding of the finless ell. The method comprises the following culturing steps of 1, erecting a net case; 2, throwing brood fishes; 3, domesticating food intake; 4, carrying out the first time of physical reinforcing culturing; 5, carrying out the first time of overwintering; 6, growing and feeding in the second year; 7, carrying out the second time of physical reinforcing culturing; 8, carrying out the second time of overwintering; 9, carrying out the gonadal reinforcing culturing; and 10, carrying out the artificial breeding, so as to obtain the male and female parent fishes of the finless ell with large brood amount, high breeding capability and high sperm-egg quality. The culturing method provided by the invention has the advantages that the survival rate of the recovered parent fishes can reach more than 95%, the brood amount of one male fish with the weight of 100g can reach 600 to 800, and the hatchability of fries can reach more than 98%.

Description

technical field [0001] The invention belongs to the field of aquaculture, and in particular relates to a broodstock culture method for large-scale artificial propagation of yellow eel, which is simple and easy to implement, and can obtain the male and female broodstock of the yellow eel with a large number of eggs, strong fecundity and high quality of sperm and eggs. Background technique [0002] The eel (Monopterus albus) is a subtropical fish, also known as eel, tilapia, field eel, long fish, yellow ginseng, no-scale son, field ginseng, etc. There is only one species in the world, the eel. It is widely distributed in Japan, Thailand, Indonesia, the Philippines, Malaysia, India, Japan, North Korea and my country, etc. in Southeast Asia. It is distributed in my country except the Qinghai-Tibet Plateau, especially in the middle and lower reaches of the Yangtze River. It has high distribution density and high output. It is a kind of important economic fish. [0003] Generally...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 柳凌朱祥云张洁明郭峰张涛
Owner YANGTZE RIVER FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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