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Large-scale breeding method of large-size fingerlings of Pelteobagrus fulvidraco Huangyou No.1

A breeding method and technology of yellow catfish, applied in fish farming, climate change adaptation, application, etc., can solve problems such as poor fish fry adaptability, difficult water quality control, difficult to accurately monitor bait biomass, and achieve major social benefits and economic benefits, the taming operation procedure is simple, emphasizing the effect of ecological taming

Inactive Publication Date: 2017-01-18
HUAZHONG AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantages of the existing technology: the open seedlings go to the pond to feed on the bait organisms that have been cultivated in the pond, the biomass of the bait organisms is difficult to accurately monitor, the bait biomass is unstable, the palatability is not good, the water quality is difficult to control, and it is easy to cause a large number of seedlings to die ; During the feeding period, using insecticides to control the bait organisms in the pond will easily lead to deterioration of water quality, poor adaptability of fry, and unstable feeding effect
The above-mentioned reasons will lead to low or unstable survival rate of peltago catfish seedling cultivation, the survival rate varies from 10 to 80%, and the average survival rate is about 30%

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A method for large-scale breeding of hybrid yellow catfish Huangyou No. 1 large-scale fish species, the steps of which are:

[0020] (1) Pond selection: The pond area is 3 mu, the drainage is convenient, the ridge does not leak, the slope ratio of the pond ridge is 1:2 ~ 1:3, the water depth is 1.0m, the bottom of the pond is flat, the silt is 10 cm, and one set is configured for every 3 mu Aeration machine (1500 kw / h) and 1 bait feeding machine;

[0021] (2) Disinfection of clear pond: Drain the pond water one month before stocking the fish, remove weeds and excess silt, and expose to the sun until the bottom of the pond turns white, hard and cracks; 14 days before stocking the fish, leave 25 cm of water at the bottom of the pond, Use 150kg of quicklime per mu. Sprinkle the whole pond after the water has melted, and also splash it on the slope of the pond; 3 days before the fish species are stocked, enter the water to a depth of 0.6m, and filter it with 80-mesh double-...

Embodiment 2

[0027] A method for large-scale breeding of hybrid yellow catfish Huangyou No. 1 large-scale fish species, the steps of which are:

[0028] (1) Pond selection: The pond has an area of ​​4 mu, with convenient drainage, no leakage of the pond ridge, slope ratio of 1:2 to 1:3, water depth of 1.1m, flat bottom of the pond, 12 cm of silt, and 1 set for every 4 mu Aeration machine (1500 kw / h) and 1 bait feeding machine;

[0029] (2) Disinfection of clear ponds: Drain the pond water one month before stocking fish, remove weeds and excess silt, and expose to the sun until the bottom of the pond turns white, hard and cracks; 14 days before stocking fish, leave 28 cm of water at the bottom of the pond, Use 180 kg of quicklime per mu. Sprinkle the whole pond after the water is melted, and also splash it on the slope of the pond ridge; 3 days before the fish species are stocked, enter the water to a water depth of 0.8 m, and use 80 mesh double-layer sieves when entering the water. Filter...

Embodiment 3

[0035] A method for large-scale breeding of hybrid yellow catfish Huangyou No. 1 large-scale fish species, the steps of which are:

[0036] (1) Pond selection: The pond area is 5 mu, the drainage is convenient, the ridge of the pond does not leak, the slope ratio of the pond ridge is 1:2 ~ 1:3, the water depth is 1.2m, the bottom of the pond is flat, the silt is 15 cm, and one set is configured for every 5 mu Aeration machine (1500 kw / h) and 1 bait feeding machine;

[0037] (2) Disinfection of clear ponds: Drain the pond water one month before stocking fish, remove weeds and excess silt, and expose to the sun until the bottom of the pond turns white, hard and cracks; 14 days before stocking fish, leave 30 cm of water at the bottom of the pond, Use 200 kg of quicklime per mu. Sprinkle the whole pond after the water is melted, and also splash it on the slope of the pond; 3 days before the fish species are stocked, enter the water to a depth of 1m, and filter it with an 80-mesh d...

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Abstract

The invention discloses a large-scale breeding method of large-size fingerlings of Pelteobagrus fulvidraco Huangyou No.1. The large-scale breeding method comprises the following steps: 1, selecting a pond; 2, disinfecting the pond; 3, putting eating-beginning fingerlings into the pond; 4, feeding bait; 5, performing water quality management. With the large-scale breeding method, a key for directly taming the eating-beginning fingerlings of the Pelteobagrus fulvidraco to eat compound feed for producing the large-size fingerlings is broken through at home for the first time; by a technology that a fingerling throwing area is enclosed by a net for taming eating in a centralized way, the eating-beginning fingerlings of the Pelteobagrus fulvidraco are directly tamed to eat the compound feed, so that an operating procedure is simple and convenient and management is easy; in aspects of fingerling breeding and bait feeding and the like, the large-size fingerlings are innovatively tamed by using the artificial compound feed to achieve successful eating conversion; the survival rate of the fingerlings is above 85%; the water quality of aquaculture water can keep good; most effective practical measures and means are created for sufficiently developing the hybrid Pelteobagrus fulvidraco Huangyou No.1 as a famous and extrasuperior breeding variety; therefore, the large-scale breeding method has significant social and economic benefits.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and specifically relates to a method for large-scale cultivation of yellow catfish Huangyou No. 1 large-scale fish species. The method provided by the invention can supplement or replace the current method used in the field for the cultivation of open-mouthed seedlings of yellow catfish. A method for breeding pond food organisms to produce large-sized peltago larvae. Background technique [0002] Yellow catfish ( Pelteobagrus fulvidraco ) (Richardson) belongs to the Sliuriformes (Sliuriformes), the family (Bagridae), the catfish genus ( Pelteobagrus ), commonly known as croaker, huangga, huangrading, etc. Wachener's catfish ( Pelteobagrus vachehi ) (Richardson) belongs to the order Sliuriformes, the family Bagridae, the genus Pelvis ( Pelteobagrus ), commonly known as Lang Si, Huang La Ding, Jiang Yan, etc. Yellow catfish ( Pelteobagrus fulvidraco ) and Peeled catfish ( Pelteobagru...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/10
CPCA01K61/00Y02A40/81
Inventor 袁勇超樊启学胡伟华李锐顾泽茂王银海
Owner HUAZHONG AGRI UNIV
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