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Method for increasing spawning rate of ricefield eels

A technology of spawning rate and eel, which is applied in the field of improving the spawning rate of golden eel, can solve problems such as low spawning rate of eel, and achieve the effects of improving gonadal function, improving body surface mucus metabolism, and increasing the number of spawned eggs.

Inactive Publication Date: 2017-05-31
蚌埠市渔歌农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limitations of the living habits and reproductive characteristics of rice field eels, large-scale farming of rice field eels has not yet made breakthrough progress. One of the main limiting factors is the low spawning rate of rice field eels.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A method for improving eel spawning rate, comprising the following steps:

[0018] (1) Choose 2m×2m×3m spawning cages, put 36 fish in each cage, including 16 female fish, 20 male fish, and the average weight of eels is 70g, and plant aquatic plants in the water tank ;

[0019] (2) Add 200g of water quality improvement solution to the water of each spawning cage, wherein the water quality improvement solution is made of the following components by weight: 38 parts of Caitou Kidney Whole Grass, 30 parts of Chongshu Fern, 25 parts of Huangzong Huacao 10 parts of yellow bamboo ginseng, 8 parts of chrysanthemum ginseng, 19 parts of Weiziye, 190 parts of water;

[0020] (3) Add 120g of fresh fish pieces to each spawning cage every day. The fish pieces come from black fish meat. Before putting the fish pieces into the nutrient solution, soak them for 2 hours. Made: 19 parts of oat grass, 20 parts of Baiziren, 18 parts of Ziji mushroom grass, 23 parts of Poria cocos skin, 160...

Embodiment 2

[0026] A method for improving eel spawning rate, comprising the following steps:

[0027] (1) Choose 2m×2m×3m spawning cages, put 36 fish in each cage, including 16 female fish, 20 male fish, and the average weight of eels is 70g, and plant aquatic plants in the water tank ;

[0028] (2) Add 250g of water quality improvement solution to the water in each spawning cage, wherein the water quality improvement solution is made of the following components by weight: 39 parts of Caitou Kidney Whole Grass, 31 parts of Chongshu Fern, 27 parts of Huangzong Huacao 12 parts of yellow bamboo ginseng, 9 parts of chrysanthemum ginseng, 20 parts of weed seed leaf, 195 parts of water;

[0029] (3) Add 130g of fresh fish pieces to each spawning cage every day. The fish pieces come from black fish meat. Before putting the fish pieces into the nutrient solution, soak them for 2 hours. The nutrient solution consists of the following components by weight: Made: 21 parts of oat grass, 22 parts of...

Embodiment 3

[0035] A method for improving eel spawning rate, comprising the following steps:

[0036] (1) Choose 2m×2m×3m spawning cages, put 36 fish in each cage, including 16 female fish, 20 male fish, and the average weight of eels is 70g, and plant aquatic plants in the water tank ;

[0037] (2) Add 300g of water quality improvement solution to the water in each spawning cage, wherein the water quality improvement solution is made of the following components in parts by weight: 40 parts of Caitou Kidney Whole Herb, 32 parts of Chongshu Fern, 30 parts of Huangzong Huacao 14 parts of yellow bamboo ginseng, 10 parts of chrysanthemum ginseng, 21 parts of weed seed leaves, 200 parts of water;

[0038] (3) Add 140g of fresh fish pieces to each spawning cage every day. The fish pieces come from black fish meat. Before putting the fish pieces into the nutrient solution, soak them for 3 hours. Made: 23 parts of oat grass, 24 parts of Baiziren, 20 parts of Ziji mushroom grass, 25 parts of Por...

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PUM

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Abstract

The invention discloses a method for increasing the spawning rate of ricefield eels. The method comprises the following steps that 1, spawning net cages of 2 m*2 m*3 m are selected, 36 ricefield eels including 16 female ricefield eels and 20 male ricefield eels are placed in each net cage, the average weight of parent ricefield eels is 70 g, and aquatic plants are planted in a water tank; 2, 200 g to 300 g of water quality improvement liquid is added into water in each spawning net cage; 3, 120 g to 140 g of fresh fish blocks are put in each spawning net cage every day, the fish blocks are from snakehead meat, and before being put, the fish blocks are soaked in a nutrient solution for 2-3 hours; 4, in the parent ricefield eel spawning period, the water temperature is kept at 23 DEG C to 25 DEG C. By means of the method, copulation and spawning between the parent ricefield eels can be effectively promoted, the gonad function of the ricefield eels is improved, and then the spawning number is increased.

Description

technical field [0001] The invention belongs to the field of aquaculture, and in particular relates to a method for increasing the spawning rate of rice field eels. Background technique [0002] The reproductive season of rice field eel is about June to August. In its individual development, it has the characteristics of sex reversal, that is, it is female from the embryonic stage to the first sexual maturity; the ovary gradually becomes the testis after laying eggs; the body length is 36- At 48 cm, part of the sex is reversed, and the male and female individuals are almost equal; those that grow to 53 cm or more are mostly testes. Juvenile fish can only grow to 20 centimeters in those days, and the female fish of 2 winter ages just reaches maturity, and body length is at least 34 centimeters. The largest individual can reach 70 cm and weighs 1.5 kg. Before the rice field eels lay eggs, the male and female eels spit out foam to build a nest, and then lay their eggs on the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/10A23K10/22A23K50/80A23K10/30
CPCA01K61/00Y02A40/81Y02A40/818
Inventor 郭强刘红郭飞
Owner 蚌埠市渔歌农业科技有限公司
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