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Efficient culture method for artificial-breeding finless eel fry

An artificial breeding and cultivation method technology, applied in fish farming, application, climate change adaptation and other directions, can solve the problems of the development restriction of the eel industry, poor breeding efficiency, low survival rate of wild seedlings, etc., to ensure good health and body shape. Consistent growth and improved survival

Inactive Publication Date: 2020-12-11
YANGTZE RIVER FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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AI Technical Summary

Problems solved by technology

[0002] At present, the rice field eel breeding industry mainly relies on caught wild seedlings for farming. The survival rate of wild seedlings is low, and the breeding benefits are poor. The development of the rice field eel industry is severely restricted.

Method used

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Examples

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Effect test

Embodiment example

[0017] The incubator consists of 3 sets of net cages of different specifications: small seedling box, medium seedling box and large seedling box:

[0018] 1. The area of ​​the small seedling cage is 0.2-0.25 square meters, the height of the cage is 30-40 cm, the mesh size is 35-45 mesh, and water hyacinth (water hyacinth) or water cabbage (big stalk) is placed in the cage;

[0019] 2. The area of ​​the medium seedling net cage is 1.2-1.8 square meters, the height of the net cage is 80-100 cm, the mesh size is 24-28 mesh, and water peanuts (Nicola chinensis) are placed in the net cage;

[0020] 3. The area of ​​the large seedling cage is 2.5-3.5 square meters, the height of the cage is 80-100 cm, the mesh size is 7-12 mesh, and water peanuts are placed in the cage.

[0021] 4. The 3 net cages are set box structure, that is, the small seedling box is placed in the medium seedling box, and the medium seedling box is placed in the large seedling box.

[0022] Training method:

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Abstract

The invention relates to an efficient culture method for artificial-breeding finless eel fry. The finless eel fry are cultured by utilizing a net-shaped sleeve cage, the net-shaped sleeve cage comprises a small-fry net cage, a medium-fry net cage and a large-fry net cage which are nested with one another; the breeding process comprises the following steps of 1, putting the finless eel fry into thesmall-fry net cage, feeding the finless eel for 5 meals to 7 meals, and turning the fry in the small-fry net cage into the medium-fry net cage; 2, feeding fresh and alive tubificidae into the medium-fry net cage for 10 meals to 15 meals, and then turning the fry in the medium-fry net cage into the large-fry net cage; and 3, feeding smashed chilled fresh fishes and the tubificidae into the large-fry net cage five times, then completely feeding the the smashed chilled fresh fishes. According to the method, three different specifications of sleeve cages are combined for feeding, the fry are highin mouth-open feeding rate, consistent in body type growth and high in survival rate. According to the sleeve cage structure, the fry are gradually placed into the medium cage and the large cage along with gradual growth of the fry, the growth environment of the fry is not changed, the survival rate is increased, and the survival rate of the fry can reach 98% or above through the combination technology.

Description

technical field [0001] The invention relates to the field of aquaculture, in particular to a high-efficiency cultivation method for rice field eel artificial breeding seedlings. Background technique [0002] At present, the rice field eel breeding industry mainly relies on wild seedlings caught for cultivation. The survival rate of wild seedlings is low, and the breeding benefits are poor. The development of the rice field eel industry is severely restricted. With the maturity of the large-scale artificial breeding technology of rice field eel, the breeding volume of artificially propagated seedlings will expand rapidly in the future, and the cultivation methods of artificially propagated seedlings need to be adjusted and improved to improve the survival rate of seedlings and the uniformity rate of seedlings. Therefore inventing a kind of simple and practical seedling cultivation mode and method is very necessary and has industrial value. Contents of the invention [0003...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/10
CPCA01K61/10Y02A40/81
Inventor 李忠田海峰胡乔木
Owner YANGTZE RIVER FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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