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Artificial breeding method of southern China beluga sturgeon

A southern region, artificial breeding technology, applied in fish farming, application, climate change adaptation and other directions, can solve problems such as difficult breeding, inability to meet market demand, and lack of seed resources, and achieve excellent growth traits, The effect of strong stress resistance and high survival rate

Inactive Publication Date: 2016-12-07
HANGZHOU QIANDAOHU XUNLONG SCI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the shortage of seedling resources of the European beluga in China, the difficulty in breeding the beluga in the south and the inability to meet the market demand, and provide a set with high spawning rate, fertilization rate, hatching rate and survival rate. An economical and effective artificial breeding method for the southern region of the European beluga

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A kind of artificial breeding method of European beluga in southern area, described method step is as follows:

[0033] 1. Broodstock selection and winterization cultivation

[0034] 1. Broodstock selection: In the southern region, when the water temperature is below 18°C, it is determined whether the female broodstock can be used for reproduction. Under the artificial cultivation of the European sturgeon broodstock, the female parent is 13+-year-old European sturgeon, with a body length of 160-195cm and a weight of 60-90kg. The male parent is 11+-year-old European beluga, with a body length of 145-175cm and a weight of 45-70kg; select male and female European beluga broodfish with normal shape, body color, large individual size, and health, and put the male and female broodstock into a circle with a diameter of 15m respectively. In the broodstock breeding pond, the ratio of male to female is ♀:♂=1.5:1; stocking density is 15kg / m 3 .

[0035] 2. Winterization cultivat...

Embodiment 2

[0052] A kind of artificial breeding method of European beluga in southern area, described method step is as follows:

[0053] 1. Broodstock selection and winterization cultivation

[0054] 1. Selection of broodstock: In the southern region, when the water temperature is below 18°C, it is determined whether the female broodstock can be used for reproduction. Under the artificial cultivation of the broodstock of the European beluga, the female parent is 13+-year-old European beluga, with a body length of 160-195cm and a weight of 60-90kg. The male parent is 11+-year-old European beluga, with a body length of 145-175cm and a body weight of 45-70kg; select male and female European beluga broodstock with normal shape, body color, large individual size, and health, and put the male and female broodstock into a circle with a diameter of 15m respectively. In the broodstock breeding pond, the ratio of male to female is ♀:♂=1.8:1; stocking density is 18kg / m 3 .

[0055] 2. Winterizat...

Embodiment 3

[0072] A kind of artificial breeding method of European beluga in southern area, described method step is as follows:

[0073] 1. Broodstock selection and winterization cultivation

[0074] 1. Selection of broodstock: In the southern region, when the water temperature is below 18°C, it is determined whether the female broodstock can be used for reproduction. Under the artificial cultivation of the broodstock of the European beluga, the female parent is 13+-year-old European beluga, with a body length of 160-195cm and a weight of 60-90kg. The male parent is 11+-year-old European beluga, with a body length of 145-175cm and a body weight of 45-70kg; select male and female European beluga broodstock with normal shape, body color, large individual size, and health, and put the male and female broodstock into a circle with a diameter of 15m respectively. In the broodstock breeding pond, the ratio of male to female is ♀:♂=2:1; stocking density is 20kg / m 3 .

[0075] 2. Winterizatio...

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Abstract

The invention relates to an artificial breeding method of southern China beluga sturgeon. The method comprises the steps of 1, parent fish selection and winterization breeding; 2, parturition hastening and artificial insemination; 3, incubation management seedling emergency; 4, seedling breeding. The artificial breeding method has the advantages that the bred beluga sturgeon seedlings are high in fertilization rate and hatching rate (the insemination rate reaches 95% or above and the hatching rate reaches 90% or above) and have the advantages of being rapid in growth, large in adaptability, high in survival rate, high in stress resistance and good in other growth trait, has the higher economic benefits and is suitable for breeding of southern China beluga sturgeon.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and relates to an economical and effective artificial breeding method for the European beluga in the southern region with high spawning rate, fertilization rate, hatching rate and survival rate. Background technique [0002] European sturgeon, also known as European sturgeon and black sea sturgeon, belongs to the order Sturgeoniformes, the family Acipenseridae, and the genus Hulus. It is one of the largest freshwater fishes in the world. High nutritional value, the protein content of fish meat and eggs can be as high as 18% and 29%. The most valuable product of the European beluga is undoubtedly the European beluga caviar processed from its roe. It is the most expensive variety in the international market. With the increasing market demand for sturgeon, the natural resources of the European beluga are constantly depleting, and the production of sturgeon fish is less than 25%-30% of the glob...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCA01K61/00Y02A40/81
Inventor 夏永涛胡谋廖金海张大海张颖许式见邵辉
Owner HANGZHOU QIANDAOHU XUNLONG SCI TECH
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