Cultivation method of three-way hybrid scallop commodity offspring seeds

A technology of ternary hybridization and breeding method, which is applied in the fields of application, climate change adaptation, fish farming, etc., can solve the problems of male sterile seed production and other problems, so as to improve the supply capacity of excellent seedlings and breeding production, and increase heterosis , the effect of large genetic distance

Active Publication Date: 2022-05-10
YANTAI INST OF COASTAL ZONE RES CHINESE ACAD OF SCI +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention aims at the problem of the lack of high-quality seedlings in the scallop culture industry and the difficulty in producing male sterile seeds of the hybrid offspring of Gulf scallops, Gulf scallops and purple scallops, and proposes a ternary hybrid scallop commodity based on purple scallops, Gulf scallops and Gulf scallops seedling cultivation method

Method used

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Embodiment

[0029] In late January 2019, 200 large and vigorous Gulf scallops and 200 Gulf scallops were selected for fattening in the nursery. The tolerance of Gulf scallops to low temperature is worse than that of Gulf scallops. Therefore, the initial culture water temperature of Gulf scallops is higher than that of Gulf scallops. After 2°C, it was stable for 2 days. After the Gulf scallop cultured seawater warmed up to the culture temperature of the Gulf of Mexico scallop, the two kinds of scallop cultured seawater were heated again at a rate of 0.5°C / day. When the cultured water temperature rose to 19°C, the temperature was stopped and Keep the water temperature constant (19±0.5°C) until the gonads of the two scallops are fully mature. After the gonads mature in mid-March, dry them in the shade for 30 minutes, and place a single scallop in a beaker pre-added with seawater at 24°C to induce labor. If the scallops lay eggs first, collect the eggs into a clean beaker; if the scallops ej...

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Abstract

The invention relates to the technical field of marine economic shellfish cross breeding, in particular to a breeding method based on argopecten purpuratus, argopecten irradians and Argopecten irradians concentricus three-way hybrid scallop commodity fries. The argopecten irradians and the Argopecten irradians concentricus are subjected to intersubspecific hybridization, then the obtained first-generation scallops of the intersubspecific hybridization and the argopecten purpuratus are used as seed scallops and are respectively subjected to high selfing purification, and the obtained purified sea and ink sea (or ink sea) hybrid scallops and the argopecten purpuratus are subjected to interspecific hybridization; therefore, large-scale preparation of the sea-black-black-purple (or black-sea-black-purple) three-way hybrid scallop commodity offspring seeds is realized. According to the method for preparing the three-way hybrid scallop commodity offspring seeds of the Argopecten purpuratus, Argopecten purpuratus, Argopecten purpuratus, Argopecten purpuratus, Argopecten purpuratus, Argopecten purpuratus, Argopecten purpuratus, Argopecten purpuratus, Argopecten purpuratus, Argopecten purpuratus, Argopecten purpuratus, Argopecten purpuratus, Argopecten purpuratus, Argopecten purpuratus,

Description

Technical field: [0001] The invention relates to the technical field of marine economic shellfish hybrid breeding, in particular to a method for cultivating commercial scallop seedlings based on the three-way hybridization of purple scallops, bay scallops and Gulf of Mexico scallops. Background technique: [0002] The northern subspecies of the bay scallop (Argopecten irradians irradians, referred to as the bay scallop) and the southern subspecies of the bay scallop (Argopecten irradians concentricus, also known as the Gulf of Mexico scallop) are native to the coast of the Americas, both of which are fast-growing shellfish. It was introduced into China in the 1990s and 1990s, and rapidly developed into the main cultured species of scallop in the northern and southern coastal areas of my country, triggering a development climax of my country's aquaculture industry (Zhang Fusui, 2014; Han Jiajun et al., 1998). In 2018, the aquaculture area of ​​Gulf scallops and Gulf scallops i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/54
CPCA01K61/54Y02A40/81
Inventor 宁军号王春德刘桂龙曹为安
Owner YANTAI INST OF COASTAL ZONE RES CHINESE ACAD OF SCI
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