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Propagation method of dragon-eye goldfish

A goldfish and fingerling technology, which is applied in the field of ornamental fish breeding, can solve the problems of low fertilization rate, hatching rate, fry survival rate, difficulty in large-scale breeding of dragon goldfish, lack of standard specifications for spawning, and hatching, etc., to achieve screening methods Scientific and reasonable, early breeding, and the effect of increasing hatching rate

Inactive Publication Date: 2018-11-13
天津市金水族水产养殖有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the unscientific selection and cultivation of broodstock, the lack of standard specifications for spawning and hatching in the existing methods of breeding dragon species of goldfish, the problems of low fertilization rate, hatching rate and fry survival rate make it difficult to achieve large-scale breeding of dragon species of goldfish

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A kind of breeding method of dragon species goldfish, concrete steps are as follows:

[0039] (1) Environmental management of broodstock breeding:

[0040] Choose an area of ​​10m 2 , a culture pond with a depth of 30cm. The interior of the culture pond is equipped with an independent water inlet and drainage system. The outlet is located in the pond. The slope of the bottom of the culture pond is 5‰. 3 days before stocking fish species, soak the culture pond with acid solution for 22 hours Finally, release the acid solution and rinse the pool twice with clean water;

[0041] (2) Screening and cultivation of broodstock:

[0042] Select 2-year-old female fish and 1-year-old male fish for broodstock, and pair them in groups according to the ratio of male to female at 2:1. Put 3 groups per square meter, and start feeding the broodstock 2 days after stocking. Choose fresh large zooplankton or crude protein. The extruded feed with a content greater than 32% is used as fis...

Embodiment 2

[0053] Embodiment two a kind of breeding method of dragon species goldfish, concrete steps are as follows:

[0054] (1) Environmental management of broodstock breeding:

[0055] Choose an area of ​​30m 2 , a culture pond with a depth of 80 cm. The interior of the culture pond is equipped with an independent water inlet and drainage system. The outlet is located in the pond. The slope of the bottom of the culture pond is 10‰. 3 days before stocking fish species, soak the culture pond with acid solution for 24 hours Finally, release the acid solution and rinse the pool with clean water 3 times;

[0056] (2) Screening and cultivation of broodstock:

[0057] Select 4-year-old female fish and 1-year-old male fish for broodstock, and pair them in groups according to the ratio of male to female at 3:1, put 5 groups per square meter, start feeding the broodstock 3 days after stocking, choose fresh large zooplankton or crude protein The extruded feed with a content greater than 32% ...

Embodiment 3

[0069] A kind of breeding method of dragon species goldfish, concrete steps are as follows:

[0070] (1) Environmental management of broodstock breeding:

[0071] Choose an area of ​​15m 2 , a culture pond with a depth of 50cm. The interior of the culture pond is equipped with an independent water inlet and drainage system. The outlet is located in the pond. The slope of the bottom of the culture pond is 8‰. 3 days before stocking fish species, soak the culture pond with acid solution for 23 hours Finally, release the acid solution and rinse the pool twice with clean water;

[0072] (2) Screening and cultivation of broodstock:

[0073] Choose 3-year-old female fish and 1-year-old male fish for broodstock, and make groups according to the male-to-female ratio of 3:1, put 4 groups per square meter, and start feeding the broodstock 3 days after stocking, choose fresh large zooplankton or crude protein The extruded feed with a content greater than 32% is used as fish food. Mine...

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Abstract

The invention provides a propagation method of dragon-eye goldfish. The method comprises the steps that an independent water inlet and draining system is arranged in a culturing pond, and the culturing pond is soaked by using acid liquid before fingerling is put into the culturing pond; parent fish is selected, and feed is put into the culturing pond 2-3 days after the parent fish is put into theculturing pond; filtered clear water is added after a spawning pond is cleaned and disinfected, stimulation is conducted for the estrus of the parent fish when ovipoistion is conducted, and oviposition is started before dawn on the next day; spawning nests with oosperm are put into a hatching pond, and the spawning nests are taken out one week after fry are given birth; selective preference is conducted on fish when the fry grow and become commodity fish to select excellent individuals with attractive appearance, bright color and outstanding shape and properties. According to the method, the management of culturing environments and the selecting manner of the parent fish are scientific and reasonable, the spawning nests are adopted to hatch spawns to make the observation of spawn developing convenient, propagation is conducted in advance to improve the survival rate of the spawns, the developing temperature of the spawns in the hatching process is easy to control, the water amount is less, the quality of the oosperm is easy to recognize, and the hatching rate of the goldfish is greatly improved.

Description

technical field [0001] The invention relates to the technical field of ornamental fish breeding, in particular to a method for breeding dragon species goldfish. Background technique [0002] Dragon species goldfish is a kind of fish, usually short and thick, with a flat and wide head, round and large scales, it is more suitable as an ornamental fish species. The shape of the dragon species is similar to that of the Wen species, the difference is that the eyeballs protrude out of the eye sockets. Since ancient times, dragon species have been regarded as authentic goldfish. Due to the unscientific selection and cultivation of broodstock, the lack of standard norms for spawning and hatching in the existing breeding methods of dragon species of goldfish, the problems of low fertilization rate, hatching rate and fry survival rate make it difficult to realize large-scale breeding of dragon species of goldfish. Contents of the invention [0003] The invention aims to solve the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/10A01K61/17
CPCA01K61/10A01K61/17Y02A40/81
Inventor 张宝龙曲木赵子续段霁航王云祥
Owner 天津市金水族水产养殖有限公司
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