Breeding method for fine breeds of litopenaeus vannamei

A technology of L. vannamei and prawns, which is applied in the field of selection and breeding of fine varieties of aquaculture prawns, and can solve problems such as spending foreign exchange, quality decline, and lack of breeding techniques

Active Publication Date: 2014-04-30
广东海兴农集团有限公司 +2
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Problems solved by technology

Although the large-scale artificial propagation technology of Litopenaeus vannamei has achieved large-scale industrialization, the technology of breeding and breeding of SPF Litopenaeus vannamei seedlings and the technology of SPR Litopenaeus vannamei species breeding are lackin

Method used

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Embodiment Construction

[0020] In order for those skilled in the art to better understand the technical solutions provided by the present invention, the following will be described in conjunction with specific embodiments.

[0021] The breeding method of the improved Litopenaeus vannamei provided by the embodiments of the present invention comprises the following steps:

[0022] (1) Introduction of basic populations: Collect 5-10 natural populations or artificially selected strains in Central and South America and the Gulf of Mexico, raise them independently, take samples, and detect viruses by PCR, leaving all negative strains as basic populations;

[0023] (2) Screening of the basic population: analyze the genetic diversity of the strains from each source, determine their genetic relationship, and keep 5 to 8 distant strains;

[0024] (3) Strengthening of broodstock: Breed the broodstock, and choose those with strong vitality, smooth body surface, no deformity, and a body weight greater than 20% of...

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Abstract

The invention discloses a breeding method for fine breeds of the litopenaeus vannamei. The breeding method comprises the steps: (1), introduction of a basic population; (2), screening of the basic population; (3), intensifying of parent shrimps; (4), building of a family; (5), standardized breeding of young shrimps; (6), independent breeding of the family; (7), family testing; (8), determining of a target family; (9), expanding of propagation; (10), colony breeding of the target family; and (11), breed conservation. Compared with the prior art, the breeding method for the fine breeds of the litopenaeus vannamei has the advantages of being high and stable in yield, resistant to stress and suitable for the high-salinity and low-salinity breeding environment of China.

Description

technical field [0001] The invention relates to the field of breeding of fine varieties of cultured prawns, specifically a method for breeding of fine varieties of Litopenaeus vannamei. Background technique [0002] my country is a big country for Litopenaeus vannamei farming. It has become an important species of shrimp farming in my country since 1999. It has developed rapidly in the three southern provinces and has become the most popular shrimp species in the country with the largest output. With the rapid development of production, there have been serious problems such as uneven quality of seedlings, virus carrying and slow growth, which directly threaten the sustainable development of my country's Litopenaeus vannamei aquaculture industry. Strengthening research on the selection and breeding of prawn farming species, establishing a genetic breeding center, and focusing on cultivating high-quality species with strong stress resistance and adapting to intensive farming a...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 陈锚江谢武陈荣坚李辉黎宏宇
Owner 广东海兴农集团有限公司
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