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A method for synchronous development of gonads of scallop scallop and scallop scallop and hybrid seedling breeding method

A technology for scallops scallops and scallops scallops is applied in the field of hybrid seedling breeding, which can solve the problems of inability to synchronize gonads to affect industrialization promotion and application, non-uniform development of gonads in scallops scallops, and inability to develop and mature gonads synchronously. stimulatory ability, reducing mortality and deformity rates, and enhancing developmental synchrony

Active Publication Date: 2022-04-29
中国水产科学研究院长岛增殖实验站
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing research only heats up the scallop scallop to promote ripening, while the scallop scallop adopts natural maturation, which makes the gonad development of the scallop scallop ununiform. The precise regulation of the synchronous development of the two gonads has affected the industrialization and application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] On February 22, 2018, Chlamys farreri and Ezo scallops were placed in the temporary breeding pond at the same time, and the natural water temperature was 2.5°C.

[0045] 1. Heating mode

[0046] Chlamys farreri: The temperature will start to rise on February 25, and the temperature will rise by 0.5°C every day, and will be maintained at 4°C from February 27 to March 3;

[0047] The temperature rises by 0.5°C every day and remains at 8°C from March 11th to 15th;

[0048] The temperature will rise by 1°C every day and will remain at 12°C from March 19 to 23;

[0049] The temperature rises by 1°C every day and remains at 15°C from March 26 to April 4.

[0050] Ezo scallops: The temperature will start to rise on February 25, and the temperature will rise by 0.5°C every day, and it will remain at 4°C from February 27 to March 5;

[0051] The temperature will increase by 0.5°C every day, and will be maintained at 5°C from March 9th to 15th;

[0052] The temperature rises ...

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PUM

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Abstract

The invention provides a method for synchronous development of gonads of scallop and scallop scallop and a hybrid seedling raising method, and relates to the technical field of marine organism seedling raising. In the present invention, the parents of the scallop scallop and the parent of the scallop scallop are put into the pool for temporary breeding, and the gonads of the two are developed and matured synchronously by adjusting the heating mode; Fertilization, hatching. The gonad synchronous maturation-promoting method provided by the invention can make the synchronous development and maturation rate of the gonads in groups and between groups more than 95%; it can improve the fertilization rate and hatching rate, reduce the mortality rate and deformity rate of fertilized eggs; it can enhance the growth rate of D-shaped larvae The anti-stress ability and the synchronization of development can improve the survival rate of hybrid larvae and overcome the problem of high mortality of hybrid larvae.

Description

technical field [0001] The invention belongs to the technical field of marine organism seedling cultivation, and in particular relates to a method for synchronously developing gonads of scallop and scallop scallop and a hybrid seedling raising method. Background technique [0002] Hybrid breeding is a traditional and effective breeding method for cultivating new varieties, and it is a reliable way to improve genetic traits and cultivate fine varieties. In shellfish, relevant scholars have successively carried out cross-breeding experiments on scallops, oysters, abalone and other cultured species within species, between species, and in different geographical groups. It has good production traits and certain heterosis. [0003] Patinopecten yessoensis is native to Japan, and after being introduced into China, it is rapidly cultivated in Shandong, Liaoning and other regions. It is one of the important cultured shellfish in my country. After years of cultivation, the germplasm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/54
CPCA01K61/54Y02A40/81
Inventor 于涛蔡忠强赵春暖王晓梅吴彪郑言鑫
Owner 中国水产科学研究院长岛增殖实验站