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Seed production method of new variety of ammonia-nitrogen-resistant and high-yield sinonovacula constricta

A ammonia-nitrogen-resistant, new variety of technology, applied in the fields of application, fish farming, animal husbandry, etc., can solve the problems of poor bottom quality and high concentration of ammonia nitrogen in water bodies, and achieve high commercial value and promotion value

Active Publication Date: 2022-07-22
浙江万里学院宁海海洋生物种业研究院 +1
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Problems solved by technology

[0005] The technical problem to be solved in the present invention is to aim at the problems of high ammonia nitrogen concentration in the water body and poor substrate conditions caused by the current mixed culture mode in ponds, and combine the genetic characteristics of the ammonia nitrogen resistance of razor clams to provide a new variety of razor clams with ammonia nitrogen resistance and high yield. Seed production method

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  • Seed production method of new variety of ammonia-nitrogen-resistant and high-yield sinonovacula constricta

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[0022] The technical solutions of the present invention will be described clearly and completely below. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] The invention provides a method for producing seeds of a new variety of constricted clams with ammonia nitrogen resistance and high yield, comprising the following steps:

[0024] S1: Initial screening: take the constricted razor clams germplasm resource group with excellent traits as the breeding base group, take ammonia nitrogen resistance as the breeding target, and keep the parent shellfish as the basic parent shell group;

[0025] S2: Secondary selection: adopt the method of colony sub-generation breeding, select the larvae with stron...

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Abstract

The invention provides a seed production method of a new variety of ammonia-nitrogen-resistant and high-yield sinonovacula constricta, which comprises the following steps: S1, primary screening, S2, secondary optimization, S3, same-generation multi-point heritability evaluation, and S4, strain purification. According to the method, the novel sinonovacula constricta strain which is high in ammonia nitrogen resistance and rapid in growth and is suitable for a pond mixed culture mode is obtained, a solid technical support is provided for large-scale high-density healthy culture of sinonovacula constricta, and a germplasm resource guarantee is provided for sustainable development of the sinonovacula constricta industry.

Description

technical field [0001] The invention relates to the fields of aquaculture and seed production, in particular, to a seed production method for a new variety of constricted clams with high yield and resistance to ammonia nitrogen. Background technique [0002] Constricted razor (Sinonovacula constricta) is a green seafood with high protein and low fat. It has the characteristics of fast growth and short breeding cycle. It is one of the important economical shellfish for farming. The main farming methods are polyculture of fish, shrimp, crab, etc. Multi-trophic-level pond ecological culture model for cultured species. The constricted clams feed on phytoplankton and organic debris in seawater, lick benthic diatoms, etc., to promote convection between the upper and lower water layers, accelerate the decomposition of organic matter, and achieve smooth energy circulation and material circulation. [0003] However, under the high-density intensive aquaculture mode, the ammoniation ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/54
CPCA01K61/54Y02A40/81
Inventor 徐洪强董迎辉林志华何琳何京孙长森吕丽媛
Owner 浙江万里学院宁海海洋生物种业研究院
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