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Method for breeding high-ammonia-nitrogen and high pH resistant species of prawn

A high ammonia nitrogen, shrimp technology, applied in fish farming, application, climate change adaptation and other directions, can solve the problems of low survival rate of farming, quality degradation of shrimp farming, poor resistance to stress, etc., and achieve simple and convenient operation, growth speed and farming. The effect of improving the survival rate

Inactive Publication Date: 2011-05-25
YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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Problems solved by technology

[0004] The invention provides a method for breeding prawns resistant to high ammonia nitrogen and high pH varieties, which can solve the problems of quality degradation, poor stress resistance and low survival rate of cultured prawns in the prior art

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Embodiment Construction

[0016] Describe technical content of the present invention in detail below by embodiment:

[0017] The present invention has been implemented and applied in Changyi Haifeng Aquaculture Company of Shandong Province, and the effect is good.

[0018] 1. In September 2005, six populations of Penaeus sinensis "Huanghai No. 1" cultured in 5 different areas of Changyi, Hebei, Jiaozhou, Rizhao and Wendeng and wild populations of Rizhao offshore were collected to form a basic population. Among the 10,000 broodstock prawns, 500 prawns with bright luster, strong vitality, and a body length of more than 15 cm were selected. Quantitative genetics was used to analyze the growth and development rules and hybrid vigor of different breeding populations for the collected basic populations, and the genetic diversity analysis was carried out by AFLP and other techniques.

[0019] 2. Family selection 136 families were established according to the complete diallel hybridization model, and the rati...

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Abstract

The invention provides a method for breeding a high-ammonia-nitrogen and high pH resistant species of a prawn, which can solve the problems of degraded quality, poor stress resistance and low breeding survival rate of prawn breeding existing in the prior art. Specifically, the new species with high stress resistance is screened by manually breeding the yellow sea No.1 fenneropenaeuschinensis with favorable growth characters as a basic group and adopting a combined breeding method of group breeding and family breeding through a high-ammonia-nitrogen and high pH stress test. The new high-stress resistance species screened by using the method is capable of aggregating and growing, has favorable characters of stress resistance and improves the high-ammonia-nitrogen and high pH resistance by 30 percent.

Description

technical field [0001] The invention relates to the selection and breeding of stress-resistant characters of prawns, in particular to a method for breeding excellent varieties of prawns resistant to high ammonia nitrogen and high pH. Background technique [0002] Shrimp is one of the important marine biological resources in my country, with high economic value, and it is also the main export aquatic product with huge market potential. Large-scale artificial breeding began in the late 1980s along the coast of my country. At present, the national shrimp farming industry is developing rapidly, with a farming area of ​​more than 200,000 hectares and an annual output of more than 1 million tons, accounting for 1 / 3 of the global farming output. Breeding of improved species is one of the most important keys to the sustainable and stable development of the shrimp farming industry. Breeding fine varieties with strong stress resistance through artificial directional selection can enh...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 李健何玉英刘萍王清印李吉涛陈萍
Owner YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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