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Mixed breeding method combining family breeding and group breeding

A group breeding and combination technology, applied in fish farming, application, climate change adaptation, etc., can solve problems such as difficult and high-quality varieties, and achieve the effect of rapid and high-quality breeding

Inactive Publication Date: 2021-09-17
湛江华南贝类研究院
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a mixed breeding method combining family selection and group selection, which solves the problem that it is difficult to quickly obtain excellent varieties with stable traits in the traditional oyster family breeding method

Method used

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Embodiment Construction

[0022] The present invention will be further described below in combination with embodiments. A mixed breeding method combining family selection and group selection, comprising the following steps:

[0023] S1. Selection of parent oysters: According to the type of oysters that need to be cultivated, select individuals with normal biological characteristics, regular shell shape, and strong vitality from the corresponding type of oyster populations for more than two years, and weigh the selected individuals. Male and female individuals whose body weight is 15-20% larger than the average body weight are used as the first brood;

[0024] S2. Acquisition of sperm and eggs: dissect the brood individuals selected in S1, squeeze the gonad mass lightly, then absorb a small amount of squeezed liquid, and then distinguish male and female according to conventional methods and place them separately. Broilers are washed eggs or semen, and filtered separately;

[0025] S3. Sperm and egg gr...

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Abstract

The invention provides a mixed breeding method combining family breeding and group breeding. The mixed breeding method combining family breeding and group breeding comprises the following steps: S1, selecting parent oysters: selecting individuals which are more than two years old, normal in biological characteristics, regular in shell type and high in vitality from corresponding types of oyster groups according to types of oysters needing to be bred, weighing the selected individuals, and taking the male and female individuals with the weight 15-20% greater than the average weight as the first parents. According to the mixed breeding method combining family breeding and group breeding, family breeding and group breeding are combined for use, oyster individual selfing and hybridization of various oysters are carried out at the same time, various filial generations with different character expressions can be bred at the same time, the female parents and the male parents of the second-generation parents with different character expressions are respectively subjected to exchange mating cultivation, so that the recessive character is stably inherited, and the required stable excellent breeding can be quickly obtained while the same cultivation time is spent.

Description

technical field [0001] The invention relates to the field of oyster cultivation, in particular to a mixed breeding method combining family selection and group selection. Background technique [0002] Oysters, commonly known as sea oysters, oysters, etc., belong to the mollusk phylum, bivalves, and pearl oysters. They are the largest cultured shellfish in the world and one of the important marine biological resources available to humans. Not only is the meat delicious and nutritious, but it also has unique health care functions and medicinal value. It is a rare seafood with high nutritional value. The zinc content of oysters ranks first in human food. [0003] At present, oysters are mostly cultivated artificially, and with the continuous improvement of people's living standards, the demand for oysters is also increasing. In order to breed high-quality oysters, people will breed excellent varieties through selective breeding . [0004] In related technologies, the breeding ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/55
CPCA01K61/55Y02A40/81
Inventor 李鹏飞李琪于瑞海李忠玉刘士凯徐成勋
Owner 湛江华南贝类研究院
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