A breeding method for marsupenaeus japonicus breeding population based on high ammonia nitrogen resistance and growth traits

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

Active Publication Date: 2017-09-15
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,
[

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  • A breeding method for marsupenaeus japonicus breeding population based on high ammonia nitrogen resistance and growth traits
  • A breeding method for marsupenaeus japonicus breeding population based on high ammonia nitrogen resistance and growth traits
  • A breeding method for marsupenaeus japonicus breeding population based on high ammonia nitrogen resistance and growth traits

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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

The invention provides a breeding method for marsupenaeus japonicus breeding population based on high ammonia nitrogen resistance and growth traits. The method comprises the steps of: (1) parent shrimp import; (2) establishment of a family; (3) preliminary experiment of high ammonia nitrogen resistance; (4) high ammonia nitrogen resistance experiment for the breeding family; (5) high ammonia nitrogen resistance data recording; (6) establishment of a genetic estimation model; (7) family breeding larva reservation; (8) establishment of a second-generation family. The method can breed a new marsupenaeus japonicus variety with high ammonia nitrogen resistance and growth superiority; the stress resistance of marsupenaeus japonicus to the concentration of ammonia nitrogen is improved and the survival rate and the growth speed of marsupenaeus japonicus are increased.

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...

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Application Information

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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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