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Breeding method of fast-growing stress-resistant type penaeus chinensis commercial line

A technology of Chinese prawns and matching systems, which can be used in fish farming, application, climate change adaptation, etc., and can solve problems such as difficulty in meeting the needs of diversified new species

Inactive Publication Date: 2021-11-23
YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the breeding of prawns in China is mainly based on group breeding and family breeding, and the breeding goals are mostly the selection of a single trait, which is difficult to meet the needs of the current aquaculture industry for diversified new varieties

Method used

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  • Breeding method of fast-growing stress-resistant type penaeus chinensis commercial line
  • Breeding method of fast-growing stress-resistant type penaeus chinensis commercial line

Examples

Experimental program
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Effect test

Embodiment 1

[0031] Embodiment 1: Collection of Chinese prawn mating line progenitor basic population

[0032] Chinese shrimp "Huanghai No. 1", "Huanghai No. 3" and "Huanghai No. 4" are all new aquatic species approved by the state, and the species registration numbers are GS01001-2003, GS-01-002-2013, GS-01-003 -2020, each has different excellent production performance. Among them, the Chinese prawn "Huanghai No. 1" has the excellent traits of fast growth, the Chinese prawn "Huanghai No. No. 4" has strong tolerance to high pH value in aquaculture water. The implementation site is located in Changyi Haifeng Aquaculture Co., Ltd., and the parental materials used are also purchased from Changyi Haifeng Aquaculture Co., Ltd. The breeding environment and management conditions are basically the same, and the errors caused by human and environmental factors can be eliminated. Improve the accuracy of breeding effect. The traits of growth, ammonia nitrogen tolerance and high pH stress of the thr...

Embodiment 2

[0034] Embodiment 2: the performance selection standard of Chinese prawn mating line maternal progenitor

[0035] In October 2015, when the Chinese prawn “Huanghai No. 1” culture colony was harvested, 100 unmated female shrimp and male shrimp with strong physique and good growth performance were selected from the Chinese prawn “Huanghai No. 1” culture colony for separate breeding and overwintering , to count its body length and weight as the progenitor of the mating line. The collected Chinese prawn "Huanghai No. 1" unmated female shrimp has a body length of 14.65-15.35cm and a weight of 37.01-42.37g; a male shrimp has a body length of 12.7-13.62cm and a weight of 24.02-27.53g.

Embodiment 3

[0036] Embodiment 3: the performance selection standard of Chinese prawn mating line paternal progenitor

[0037] In April 2015, the broodstock of the collected Chinese prawns "Huanghai No. 3" and "Huanghai No. 4" basic populations were bred, and the stress experiment was carried out when the larvae developed to larvae with a body length of about 1.0 cm.

[0038](1) Randomly select 100,000 larvae from the "Huanghai No. 3" population of Chinese prawns, and put about 25,000 surviving individuals into outdoor ponds after being stressed with ammonium chloride at a concentration of 64 mg / L for 96 hours. When harvested in October 2015, 100 male shrimps with strong physique and good growth performance were selected for separate seeding and overwintering, and their body length and weight were counted. As the male parent of the matching line, the male shrimp body length was 12.16-12.98cm , weighing 21.89-22.53g.

[0039] (2) 100,000 larvae were randomly selected from the population of...

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Abstract

The invention discloses a breeding method of a fast-growing stress-resistant type penaeus chinensis commercial line, and belongs to the technical field of penaeus chinensis breeding. The method comprises the following steps: collecting penaeus chinensis Huanghai No.1 population for pure breeding, selecting excellent female prawn and male prawn parents from the penaeus chinensis Huanghai No.1 pure breeding population as ancestral generations, and breeding a family with high growth performance as a specialized maternal line; collecting penaeus chinensis Huanghai No.3 and Huanghai No.4 populations for pure breeding, selecting male prawn parents with high ammonia nitrogen resistance and high stress resistance from the penaeus chinensis Huanghai No.3 pure breeding populations, selecting female prawn parents with high pH resistance and high stress resistance from the penaeus chinensis Huanghai No.4 pure breeding populations as ancestral generations; breeding a family with high stress resistance as a specialized paternal line by adopting an artificial insemination technology; selecting female prawns from the specialized maternal line, selecting male prawns from the specialized paternal line, carrying out hybridization by adopting the artificial insemination technology, and obtaining the fast-growing stress-resistant type penaeus chinensis commercial line.

Description

technical field [0001] The invention belongs to the technical field of Chinese prawn breeding, and in particular relates to a breeding method of fast-growing and stress-resistant Chinese prawn matching lines. Background technique [0002] Chinese prawns, also known as Oriental prawns, commonly known as prawns and prawns, are important aquaculture species in the coastal areas of the Yellow and Bohai Seas in my country. In the peak period of aquaculture development (around 1990), the aquaculture output reached about 200,000 tons, accounting for 70% of my country's prawn aquaculture output. . However, since the outbreak of prawn viral diseases in 1993, the total production of prawns in China has declined sharply, and production has not been gradually resumed until after 2000. In recent years, the annual aquaculture area has been 300,000-400,000 mu, and the aquaculture output has been 40,000-50,000 tons. In recent years, the pollution of the aquaculture water environment and fre...

Claims

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Application Information

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IPC IPC(8): A01K61/59
CPCA01K61/59Y02A40/81
Inventor 何玉英王琼李健王学忠
Owner YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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