Artificial propagation method of pangasias sutchi

A freshwater white shark, artificial reproduction technology, applied in fish farming, application, climate change adaptation and other directions, can solve the problem of no reports of artificial reproduction methods of freshwater white sharks, impurities easily sticking to the sticky egg membrane, seedlings Problems such as unclear genetic background, to achieve the effect of clear genetic background of seedlings, avoiding the degradation of offspring germplasm, and preventing the degradation of offspring germplasm

Inactive Publication Date: 2018-01-19
衡阳市九龙生态农业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Breeding and hatching in the environment of inland still water ponds is prone to the following problems: 1) Due to the self-sinking and stickiness of freshwater white shark fertilized eggs, they will sink to the bottom of the water and stick to each other, and will soon be hypoxic. Death; 2) There are many impurities in the hatching water, or the water is turbid, and the impurities in the water are very easy to stick to the viscous egg membrane, resulting in the death of the fertilized eggs due to hypoxia; 3) The fertiliz

Method used

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Embodiment Construction

[0035] Embodiments of the present invention will be described in detail below in conjunction with examples, but those skilled in the art will understand that the following examples are only for illustrating the present invention, and should not be considered as limiting the scope of the present invention.

[0036] The present invention is achieved through the following technical solutions: the artificial breeding method for freshwater white sharks, comprising the steps of:

[0037] (1) Selection of broodstock: Select a healthy individual, no disease, no disability, no parasites on the body surface, and good nutritional status. A 4-5-year-old female freshwater white shark with a size of 3.5 kg is used as the female parent. , a male freshwater white shark with a size of about 3 kg is used as the male parent;

[0038] (2) Breeding of broodstock: Put the broodstock into the breeding ponds according to the ratio of 1:1 of male and female respectively, and the breeding density: the ...

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Abstract

The invention relates to an artificial propagation method of pangasias sutchi. The artificial propagation method comprises the following steps of selecting of parent fishes, culturing of parent fishes, artificial spawning induction, and artificial insemination; the zygotes are placed into a hatching tank to hatch for 50 to 60h in hatching water with temperature of 28 to 30 DEG C, and content of dissolved oxygen of 4mg/L. The artificial propagation method has the advantages that the fully-artificial hatching of the fishes can be realized, the condition of the parent fishes swallowing the fish fries is prohibited, the family line of the fishes can be established, the subsequent breeding of the family line is convenient, the relationship between the offsprings and the parents can be clearly known, the inbreeding can be controlled, and the genetical characterization decline of the offsprings produced by the inbreeding can be avoided.

Description

technical field [0001] The invention relates to an artificial breeding method for freshwater white shark scientific name Pangasius.sutchi Fowler, belonging to the technical field of aquatic breeding. Background technique [0002] Freshwater white sharks, also known as tiger sharks and badinfishes, belong to Siluriformes, Siluridae, and Miscanthus. They are mainly distributed in Southeast Asia. The meat is tender, delicious, and has no intermuscular spines. It is a valuable tropical economic fish in freshwater. , Egg stickiness. [0003] Breeding and hatching in the environment of inland still water ponds is prone to the following problems: 1) Due to the self-sinking and stickiness of freshwater white shark fertilized eggs, they will sink to the bottom of the water and stick to each other, and will soon be hypoxic. Death; 2) There are many impurities in the hatching water, or the water is turbid, and the impurities in the water are very easy to stick to the viscous egg membr...

Claims

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Application Information

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IPC IPC(8): A01K61/10A01K61/17A01K61/95A01K63/04
CPCY02A40/81
Inventor 谢苑陈友谟
Owner 衡阳市九龙生态农业有限公司
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