Isolated breeding technique for cherax quadricarinatus eggs

A technology of red crayfish and technology, applied in the field of shrimp culture and cultivation, can solve the problems of poor quality, great difference in quality, low survival rate, etc., so as to reduce input cost, solve low survival rate and poor quality, and be easy to popularize Effect

Inactive Publication Date: 2013-09-25
太仓年年有渔农业科技有限公司
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  • Abstract
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Problems solved by technology

[0003] Although red claw crayfish can lay eggs many times a year, the survival rate of larvae in the wild natural environment is low and the quality varies greatly, which cannot meet the needs of the majority of farmers for larvae and larvae, and at the same time increases breeding The capital investment cost of the farmers, so the current manual treatment method is widely used to cultivate isolated shrimp eggs. Although some problems of low survival rate and poor quality have been solved under the current technical conditions, it still cannot meet the market demand for shrimp seedlings. Larvae Requirements

Method used

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Embodiment Construction

[0017] Below in conjunction with specific embodiment, a kind of crayfish ovum in vitro cultivation technique of the present invention is described in detail:

[0018] A kind of crayfish ovum in vitro cultivation technique as described above, this cultivation technique comprises the following steps,

[0019] Step (1) Disinfect the egg-bearing shrimp, wherein the egg-bearing shrimp is put into 5mg / L Soak in the solution for 35-40 minutes.

[0020] Step (2) Separation of ovum-bearing shrimp, in which sterile steel / wooden tweezers are used to separate the parent shrimp from the egg body, and the temperature of the tweezers is kept at 15°C to 20°C during the operation.

[0021] In step (3), the separated egg shrimps are graded according to the individual size, weight and development degree of the separated egg shrimps.

[0022] Step (4) Egg shrimp implantation, first put the graded egg shrimp of the same level in the sterilized hatching container, and then slowly add the sterili...

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Abstract

The invention discloses an isolated breeding technique for cherax quadricarinatus eggs. The breeding technique includes the steps: disinfecting ovigerous shrimps; separating the ovigerous shrimps; classifying the separated oval shrimps; implanting the oval shrimps; hatching the oval shrimps. The isolated breeding technique solves the problems of low survival rate and poor quality of artificial breeding, the hatching rate of the shrimp eggs can be increased by more than 70%-75%, the demand of the market for shrimp seed offspring can be effectively met, capital investment cost is reduced, and the isolated breeding technique is easy to popularize.

Description

technical field [0001] The invention relates to the technical field of shrimp breeding and cultivation, in particular to a technology for in vitro cultivation of red-clawed crayfish eggs. Background technique [0002] Red claw crayfish (Cherax quadricarinatus), also known as "Australian freshwater lobster", originates in Australia and is also distributed in New Guinea. Guangdong and Hubei Trial breeding in two provinces was successful. Red claw crayfish is generally 50-100 grams in size, and the largest individual is 500-600 grams. It is a kind of freshwater shrimp with strong adaptability. It has a wide appetite, fast growth, tender meat, delicious taste and rich nutrition. , Japan, especially in the Chinese market by the majority of consumers. [0003] Although red claw crayfish can lay eggs many times a year, the survival rate of larvae in the wild natural environment is low and the quality varies greatly, which cannot meet the needs of the majority of farmers for lar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 周春波
Owner 太仓年年有渔农业科技有限公司
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