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Incubation breeding method of Cheraxquadricarinatus

A technology of red-clawed crayfish and broodstock, which is applied in the field of red-clawed crayfish hatching and breeding, can solve the problems of limited improvement and difficulty in meeting the requirements of shrimp fry, and achieve good tolerance, good economic benefits, and strong toxicity. Effect

Active Publication Date: 2017-11-17
ZHEJIANG INST OF FRESH WATER FISHERIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Prior art such as application publication number is the Chinese invention patent of CN 103314908 A, discloses a kind of crayfish ovum culture technology in vitro, in this technology, shrimp ovum is through disinfection, graded hatching etc. process to obtain required shrimp seedlings, this The invention improves the survival rate of shrimp seedlings, but the degree of improvement is limited, and it is difficult to meet the market's requirements for shrimp seedlings

Method used

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Embodiment 1

[0013] A method for hatching and breeding red-clawed crayfish, comprising:

[0014] 1) Cultivation of broodstock: The broodstock is cultivated in a special pool according to the male to female ratio of 3:1;

[0015] 2) De-egging: use sterilized tweezers to separate the shrimp eggs from the abdomen of the parent shrimp;

[0016] 3) Disinfection: Take 1 part of disinfectant, add 40 parts of water, stir the mixed disinfectant solution, take 2 parts of shrimp eggs, add the prepared disinfectant solution, soak for 3 hours, take out;

[0017] 4) Hatching: Put the sterilized egg shrimp in the incubator, the hatching density is 125 grains / mL, the dissolved oxygen in the hatching tank is kept at 10mg / L, the hatching temperature is kept at 25°C, and the hatching liquid is composed of water, hydrolyzed protein, α- Linolenic acid, multivitamins, glucose, calcium gluconate, zinc sulfate, and sodium alginate are mixed in a weight ratio of 100 / 4 / 0.3 / 0.4 / 7 / 4 / 0.2 / 7.

[0018] The composition ...

Embodiment 2

[0020] A method for hatching and breeding red-clawed crayfish, comprising:

[0021] 1) Cultivation of broodstock: The broodstock is cultivated in a special pool according to the ratio of male to female at 5:1;

[0022] 2) De-egging: use sterilized tweezers to separate the shrimp eggs from the abdomen of the parent shrimp;

[0023] 3) Disinfection: Take 3 parts of disinfectant, add 45 parts of water, stir the mixed disinfectant, take 5 parts of shrimp eggs, add the prepared disinfectant, soak for 6 hours, take out;

[0024] 4) Hatching: Put the sterilized egg shrimp in the incubator, the hatching density is 130 grains / mL, the dissolved oxygen in the hatching tank is kept at 13mg / L, the hatching temperature is kept at 27°C, and the hatching liquid is composed of water, hydrolyzed protein, α- Linolenic acid, multivitamins, glucose, calcium gluconate, zinc sulfate, and sodium alginate are mixed in a weight ratio of 100 / 4 / 0.3 / 0.4 / 7 / 4 / 0.2 / 7.

[0025] The composition and parts by w...

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Abstract

The invention discloses an incubation breeding method of Cheraxquadricarinatus. The method comprises following steps of parent shrimp rearing, egg removal, disinfection, implantation and hatching. An adopted disinfectant comprises the following components such as 3-8 parts by weight of streptomycesglobisporus fermentation liquid, 4-7 parts by weight of crab shell extractives, 5-10 parts by weight of limonene, 1-3 parts by weight of Beta-phellandrene, 2-5 parts by weight of caryophyllene, and 3-6 parts by weight of citric acid. The incubation breeding method of Cheraxquadricarinatus has the following beneficial effects: the disinfectant employed by the method is highly toxic for pathogens; a little disinfectant can exert good effect; shrimp eggs are highly resistant to the disinfectant; while pathogens are killed, the hatching rate is not affected; the survival rate of raised larval shrimps is high; larval shrimps are good in quality; the breeding steps are easy; operation is conveniently; and the method is highly practical and generates good economic benefit.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a method for hatching and breeding red-clawed crayfish. Background technique [0002] Red-clawed crayfish belongs to Crustacea, Decapod, Longtail, Pseudoriveridae, and Light Shell Shrimp. It is native to the tropical regions of northern Australia and streams in southern New Guinea. Because of its shape similar to seawater lobsters, It only lives in fresh water, so it is commonly known as Australian freshwater lobster. Red-clawed crayfish has the advantages of large size, fast growth, mixed food habits, easy feeding, and less disease. At the same time, because of its delicious meat and rich in low-cholesterol protein, it is popular in Europe and the United States as a nutritional and health food. Its market Broad prospects. At present, the United States, France, Spain, South Africa, Southeast Asia and many other countries have introduced this shrimp, and carried out factory ...

Claims

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Application Information

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IPC IPC(8): A01K61/17A01K61/59A61K31/015A61K31/194A61K35/74A61P31/00A61K35/612
CPCA01K61/17A01K61/59A61K9/0014A61K31/015A61K31/194A61K35/612A61K35/74A61K2300/00Y02A40/81
Inventor 黄振远李喜莲顾志敏郭建林
Owner ZHEJIANG INST OF FRESH WATER FISHERIES
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