A breeding method for resistance to high ammonia nitrogen and growth traits of Penaeus japonicus breeding population

A growth trait, high ammonia nitrogen technology, applied in the application, climate change adaptation, fish farming and other directions, can solve problems such as the promotion of unfavorable farming, farming failure, weakening the respiratory function and blood oxygen-carrying capacity of shrimp, etc., and is conducive to farming. The effect of promotion, improving survival rate and growth rate, improving ammonia nitrogen tolerance and growth advantage

Active Publication Date: 2020-05-15
ZHANJIANG GUOLIAN AQUATIC PROD CO LTD +1
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Problems solved by technology

[0003] 1. It will penetrate into the blood of prawns, leading to an increase in the concentration of ammonia nitrogen in the hemolymph and a decrease in the concentration of oxyhemocyanin, which will weaken the respiratory function of prawns and the oxygen-carrying capacity of blood, and cause hypoxia in prawn tissues. A large number of deaths caused breeding failure, which is not conducive to the promotion of Penaeus japonicus culture,
[0004] 2. The concentration of ammonia nitrogen will affect the abnormal physiological functions such as growth and molting of prawns, which will increase the oxygen consumption of prawns, disturb the physiological metabolism of the body, and reduce the disease resistance
And prior art still does not have the record of the selective breeding method of Penaeus japonicus breeding population resistance to high ammonia nitrogen and growth traits

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  • A breeding method for resistance to high ammonia nitrogen and growth traits of Penaeus japonicus breeding population
  • A breeding method for resistance to high ammonia nitrogen and growth traits of Penaeus japonicus breeding population
  • A breeding method for resistance to high ammonia nitrogen and growth traits of Penaeus japonicus breeding population

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Embodiment Construction

[0030] The present invention will be further described in detail through specific embodiments below.

[0031] The embodiment of the present invention provides a method for breeding resistance to high ammonia nitrogen and growth traits of Penaeus japonicus breeding population, which includes the following steps:

[0032] (1) Introduction of broodstock: collect 1000 wild populations of Penaeus japonicus, and distribute them to four rearing pools for cultivation, with 250 tails in each pool, and use nutrients to promote the gonad maturation of shrimp. The rearing pool can be 5m×5m ×1.2m specifications. In this embodiment, 1000 shrimps and four rearing ponds are selected. In specific applications, the number of shrimps and the selection of the rearing ponds can be determined according to actual conditions.

[0033] (2) Family establishment: remove the unilateral eye stalk after the parent shrimps are mature and stable, select the brood shrimps with full and continuous gonads and ...

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Abstract

A method for selecting resistance to high ammonia nitrogen and growth traits of Penaeus japonicus breeding population, comprising the following steps: (1) introduction of broodstock, (2) family establishment, (3) pre-experiment of resistance to high ammonia nitrogen, (4) family selection High ammonia nitrogen resistance experiment, (5) high ammonia nitrogen resistance data record, (6) genetic evaluation model establishment, (7) family breeding, (8) second generation family establishment. The invention can breed a new variety of Penaeus japonicus with high ammonia nitrogen resistance and growth advantage, enhance the stress resistance of Penaeus japonicus to the concentration of ammonia nitrogen, and improve the survival rate and growth speed of Penaeus japonicus.

Description

technical field [0001] The invention relates to the field of aquatic product breeding, in particular to a breeding method for breeding populations of Penaeus japonicus for resistance to high ammonia nitrogen and growth characteristics. Background technique [0002] Ammonia nitrogen is a common harmful substance in aquaculture. Ammonia nitrogen is one of the main components of the excrement of prawns. The impact has the following aspects: [0003] 1. It will penetrate into the blood of prawns, leading to an increase in the concentration of ammonia nitrogen in the hemolymph and a decrease in the concentration of oxyhemocyanin, which will weaken the respiratory function of prawns and the oxygen-carrying capacity of blood, and cause hypoxia in prawn tissues. A large number of deaths caused breeding failure, which is not conducive to the promotion of Penaeus japonicus culture, [0004] 2. The concentration of ammonia nitrogen will affect the abnormal physiological functions suc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/59
CPCY02A40/81
Inventor 蒋湘刘建勇曾凤仙谢苗刘永奎冉春丽
Owner ZHANJIANG GUOLIAN AQUATIC PROD CO LTD
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