Method for producing seeds of self-breeding YY type ultra-male Tilapia

A technology for tilapia and Nile tilapia, applied in fish farming, application, climate change adaptation, etc., can solve the problems of consuming a lot of manpower, material resources and time, and restricting the promotion of super-male tilapia seed production technology , to achieve the effect of low cost

Inactive Publication Date: 2009-05-20
广州鹭业水产有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

YY♀ in this method is a sexually reversed transformation line of YY♂, which needs to be induced by estrogen, which consumes a lot of manpower, material resources and time to obtain, so it restricts the promotion of super male tilapia seed production technology

Method used

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  • Method for producing seeds of self-breeding YY type ultra-male Tilapia
  • Method for producing seeds of self-breeding YY type ultra-male Tilapia
  • Method for producing seeds of self-breeding YY type ultra-male Tilapia

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Experimental program
Comparison scheme
Effect test

Embodiment

[0014] 1. Materials and methods

[0015] 1. Material: adopt Nile (o.niloticus) and Olea tilapia (o.aurea) introduced by the applicant from Taiwan, and the Nile tilapia super male fish (YY♂) developed by the inventor As experimental material; YY type super male tilapia is bred by the inventor using the two-line mating method, which is now called YY / GMT technology in the world, and its sex mechanism is YY♂ type.

[0016] 2. Methods: Mainly adopt hybridization and test cross method; conduct genetic analysis on sex mechanism and sex of WY type tilapia; conduct biological observation on WY type tilapia experimental fish.

[0017] 2. Experimental observation results and analysis

[0018] (1) Experiment 1

[0019] 1. A crossbreeding experiment was carried out with 10 females of Oria tilapia (WZ) and 2 males of Nile tilapia (XY), and 7000 fry of the F1 generation were reared in the same pond (57#). Stage sampling, observation statistics are listed in Table 1

[0020] Table 1 Sex r...

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PUM

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Abstract

The invention discloses an egg producing method for YY-type supermale tilapia capable of self-reproduction, which belongs to the technical field of tilapia culture. The technical proposal of the method has the key point of mating WY-type tilapia as a female fish with YY-type supermale tilapia nilotica for reproduction. The method has the advantages of scientificity, simplicity and high speed, and is used for producing the eggs of the YY-type supermale tilapia.

Description

technical field [0001] The invention relates to the breeding technology of tilapia, more specifically, it relates to a seed production method capable of self-propagating YY type super male tilapia. Background technique [0002] At present, the most advanced YY super male tilapia seed production method in the world is the two-line matching method, which is called YY / GMT technology (Genetically male tilapia technology---genetically male tilapia technology) internationally. It first uses XY♂, a male fish whose sex mechanism is XX♀-XY♂ type tilapia, to mate with the female fish (XY♀), a transsexual transformation line, to breed a YY type super male tilapia (YY♂), and then pass Find YY♂ by means of test crossing and other methods, and finally form a second line with YY♂ and its sexually reversed transformation line YY♀. After mating, 100% YY♂ can be obtained. YY♀ in this method is a sexually reversed transformation line of YY♂, which needs to be induced by estrogen, and it takes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 杨永铨张海明陈远生
Owner 广州鹭业水产有限公司
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