Breeding method for novel salinity-fluctuation-resistant variety of Penaeus monodon

A technology of Penaeus monodon and breeding methods, which can be applied in fish farming, application, climate change adaptation, etc., can solve problems such as weak adaptability, and achieve the effects of strong universality, optimized screening effect, and strong self-stress resistance

Active Publication Date: 2018-06-01
SOUTH CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI +1
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Problems solved by technology

[0002] Penaeus monodon has wide salinity, can withstand high te...

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  • Breeding method for novel salinity-fluctuation-resistant variety of Penaeus monodon

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[0033] The present invention will now be further described in detail in conjunction with the accompanying drawings and embodiments. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present invention in a schematic manner, so it only shows the composition related to the present invention.

[0034] Such as figure 1 As shown, a method for cultivating new varieties of Penaeus monodon resistant to fluctuations in salinity, the salinity of the cultured water is divided into several gradient ranges, and the median salinity of each gradient range is the first salinity in order from high to low range to the 4th salinity range, and the 5th salinity range to the 9th salinity range; the adjustment operation time of each salinity range corresponds to a specific period of time; put some P. The step range is cultivated in sequence from the first salinity range to the ninth salinity range; by using several step ranges for salinity-adjusted far...

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Abstract

The invention discloses a breeding method for a novel salinity-fluctuation-resistant variety of Penaeus monodon. According to the invention, by starting with Penaeus monodon larvae for domestication and selection, and by adoption of simultaneous and slow decrease of upper and lower limit salinities in each salinity range at first, the salinity gradually declines to about 15 degrees from a high initial level, and gradual decrease of a median in each salinity range is guaranteed, so an average salinity is reduced, and Penaeus monodon is mainly to gradually adapt to the growth environment of a low salinity in Penaeus monodon larva and young Penaeus monodon stages; and after completion of above-mentioned salinity decrease, by continuous remaining of a manner of simultaneous decrease of an upper limit salinity and a lower limit salinity, significant enhancement of a fluctuation range formed by a difference salinity of the upper and lower limit salinities starts to emerge during salinity decrease, and with changing of the salinity fluctuation range to a greatest extent, the lower limit salinity in a salinity range gradually declines to a lowest level at the same time; thus, the young Penaeus monodon basically grows into adult Penaeus monodon and has stronger stress-resistant ability, and the overall trend is to guarantee slow and gradual decrease of the salinity of a breeding water body and to enable the Penaeus monodon to be able to adapt to significant fluctuation of the salinity at the same time.

Description

technical field [0001] The invention relates to a technique for cultivating a new variety of Penaeus monodon, in particular to a method for cultivating a new variety of Penaeus monodon resistant to fluctuations in salinity. Background technique [0002] Penaeus monodon is eurysalinity, can tolerate high temperature and low oxygen, and has weak adaptability to low temperature. Strong disease resistance. The individual is large, the shell is thicker, and the edible ratio is lower than that of Chinese prawns. The meat is delicious and nutritious. The body shell is relatively solid and can withstand being caught by hand. After leaving the water, it has a strong endurance to dry and expose to the air, so it can be sold as a live shrimp. Its adaptability to salinity ranges from 5 to 25, and the closer to 10, the faster the growth. Coastal and estuary beaches that are suitable for the living habits of P. monodon can be used to build ponds to raise shrimp. The water source shoul...

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Application Information

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IPC IPC(8): A01K61/59
CPCA01K61/59Y02A40/81
Inventor 姜松江世贵周发林黄建华杨其彬杨丽诗
Owner SOUTH CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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