Method for establishing and breeding three matched breeding systems of Eriocheir sinensis

A Chinese mitten crab, individual technology, applied in fish farming, application, climate change adaptation, etc., can solve the problems of wild population germplasm mixing, decline, and breeding performance decline

Active Publication Date: 2012-04-25
上海福岁乐生物科技有限公司
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Problems solved by technology

What's more serious is that the germplasm of these wild populations is mixed and decayed seriously, and the breeding performance declines obviously

Method used

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  • Method for establishing and breeding three matched breeding systems of Eriocheir sinensis
  • Method for establishing and breeding three matched breeding systems of Eriocheir sinensis
  • Method for establishing and breeding three matched breeding systems of Eriocheir sinensis

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specific Embodiment approach

[0021] According to the biological characteristics, life history characteristics and breeding objectives of river crabs, the present invention carries out germplasm evaluation and screening of wild mitten crabs collected from the main stream of the Yangtze River, establishes the original parents of breeding, and forms (second step foot length) Section length, interdental depth, and anterior carapace verrucous protrusion) and body weight were the breeding targets, and three matching breeding lines (A, B, and C) were constructed, and the three lines were selected in parallel using the group breeding method. Breeding to form selective breeding lines with different morphological characteristics, different growth speeds, different selection pressures and different genetic variations, which are used for the production and promotion of new varieties or improved varieties. The specific implementation is as follows:

[0022] 1. The source and screening of the original parent of the mat...

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Abstract

The invention discloses a breeding method of three matched breeding systems of Eriocheir sinensis. The breeding method comprises the following steps of: (1) matching an original parent source of the breeding systems; (2) establishing the matched breeding systems: taking weight, rostral teeth and ambulatory leg lengths as breeding targets to establish A, B and C three matched breeding systems; (3)utilizing a group breeding method to carry out parallel breeding on each matched breeding system; (4) estimating breeding effects: breeding the matched breeding systems to the third generation and estimating the breeding effects. By utilizing the breeding method of the matched breeding systems of the Eriocheir sinensis, the breeding systems are constructed and three systems are respectively carried out by the parallel breeding through utilizing the group breeding method to form the breeding systems with different morphological characteristics, different growth speeds, different selection pressures and different hereditary variations; according to the method provided by the invention, the essential problem that the source of parent crab germplasm is bad in the traditional production of river crab larva is solved and conditions for manufacturing breeding strains or improved varieties which are polymerized by excellent germplasm are created.

Description

technical field [0001] The invention relates to the establishment and breeding method of three matching breeding lines of Chinese mitten crab (Eriocheir sinensis). Background technique [0002] Chinese mitten crab (Eriocheir sinensis), commonly known as river crab, is an extremely important aquatic economic organism in my country. Since 1991, the output of river crab farming in my country has grown rapidly and steadily. In 2010, the output of adult crabs increased by nearly 50 times compared with 1991, with an output of about 600,000 tons and an output value of nearly 40 billion yuan. It is one of my country's important export-earning aquatic products and The aquaculture object with the most cultural background is rich in cultural connotation, and it can be called a wonderful flower of my country's famous and excellent aquaculture industry. Therefore, river crab farming is one of the most dynamic and promising pillar industries in aquaculture in my country. In many areas of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00A01K67/027
CPCY02A40/81
Inventor 王成辉
Owner 上海福岁乐生物科技有限公司
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