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Fish growth and multiple resistance property integrated breeding and verification method

A growth performance and performance technology, applied in the field of fish breeding and fry breeding, can solve the problems of poor growth performance, poor fingerling adaptability, poor adaptability and other problems, and achieve fast growth, short time period and shortened time period. Effect

Inactive Publication Date: 2016-12-07
SICHUAN AGRI UNIV
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Problems solved by technology

[0003] The purpose of the present invention is to provide a comprehensive selection and verification method for fish growth and multiple stress resistance properties, which is used to solve the problem that existing fish fry breeding tends to cause poor adaptability of fish species to waters under different environments, such as: oxygen tolerance Poor adaptability such as resistance, cold resistance, heat resistance, etc. leads to poor growth performance or even death

Method used

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  • Fish growth and multiple resistance property integrated breeding and verification method
  • Fish growth and multiple resistance property integrated breeding and verification method

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Embodiment

[0043] In order to further explain and illustrate the present invention, the present invention will be described in detail below by taking grass carp, the most common species of fish in aquaculture in my country, as an example.

[0044] A comprehensive breeding method for fish growth and multiple stress resistance performances. According to the characteristics of different fish species and different water environment, fish fry with strong environmental stress resistance, fast growth and excellent genes are selected from ordinary fry. individual, including the following steps:

[0045] 1.1 Establish the parent F0 of the parent fish basic group, cultivate the first-year-old species F1 through the parent fish basic group F0, and make the parent F0 gene bank;

[0046] 1.2 Select a certain number of 6-8 month-old species of fish F1 to establish experimental groups for cultivation;

[0047] 1.3 After the cultivation is completed, establish the individual F1 gene bank of excellent g...

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Abstract

The invention discloses a fish growth and multiple resistance property integrated breeding method. By identifying offsprings of fish breeding parents, parent progeny, and family type fishes after hybridization, the high-quality variety is bred. The invention also discloses an identification method for fish growth and multiple resistance property integrated breeding; the bred high-quality variety is further verified and determined, the fish variety with growth property and resistance stability is obtained, and the problems of poor growth property and even death due to poor suitability of fish varieties to different environments, e.g. oxygen resistance, cold resistance and heat resistance, in the existing fish fry breeding process are solved.

Description

technical field [0001] The invention relates to the field of fish farming, in particular to the field of fry selection and breeding in fish farming, specifically, a method for comprehensive selection and verification of fish growth and multiple stress resistance properties. Background technique [0002] my country has become a major agricultural country in the world. Aquaculture has become an important part of my country's agricultural development, and it has also driven regional economic development. Breeding of farmed fish is an important part of the sustainable development of aquaculture. At present, most of the small-scale aquaculture adopts the breeding method of combining fish species to effectively calculate the density of fry, and there is little research on the selection and breeding of fry itself. Since then, the fry that have been put in are not in a perfect state, that is, some Fish with poor oxygen tolerance and heat resistance will die under sudden environment...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81A01K61/00
Inventor 孙俊龙杨淞吴浩赵柳兰连文强杜宗君杨世勇王艳杜杰
Owner SICHUAN AGRI UNIV
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