Method for structuring carp breeding parent population with excellent muscle quality

A technology of muscle quality and parents, which is applied in the field of carp breeding parent population construction, can solve the problems of insufficient genetic stability of muscle quality traits, low representativeness of measurement data, and inability to eliminate low-quality individuals, so as to shorten the breeding cycle, The effect of low breeding cost and excellent meat quality

Active Publication Date: 2015-06-10
HEILONGJIANG RIVER FISHERY RES INST CHINESE ACADEMY OF FISHERIES SCI
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention aims to solve the problem of high work intensity, many generations, long breeding cycle, high breeding cost, low representativeness of measured data obtained in the existing high-quality muscle quality carp breeding process, and poor muscle quality of new breeds bred. The inheritance of traits is not stable enough to eliminate low-quality individuals in the population, and it provides a method to construct a parental population of carp with good muscle quality

Method used

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  • Method for structuring carp breeding parent population with excellent muscle quality
  • Method for structuring carp breeding parent population with excellent muscle quality
  • Method for structuring carp breeding parent population with excellent muscle quality

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specific Embodiment approach 1

[0019] Specific embodiment one: the construction of the parent population of carp breeding with excellent muscle quality in this embodiment is carried out according to the following steps:

[0020] 1. Carry out electronic identity marking for each individual in the high-quality carp parent population;

[0021] 2. According to the electronic identity mark, record the phenotype of each individual;

[0022] 3. Using microsatellite marker technology to determine the genetic distance between individuals;

[0023] 4. Determine the number of effective populations, and then determine the number of individuals in the breeding parent population with 4 to 10 times the number of effective populations;

[0024] 5. Randomly select N tail broodstock from the high-quality carp parent population to measure the meat quality index, so as to obtain the corresponding relationship between intermuscular fat and phenotype;

[0025] 6. According to the corresponding relationship between intermuscula...

specific Embodiment approach 2

[0030] Embodiment 2: The difference between this embodiment and Embodiment 1 is that in step 5, a fish fat measuring instrument is used to measure the meat quality index. Other steps and parameters are the same as those in Embodiment 1.

[0031] In this embodiment, the fish fat measuring instrument Distell FM692 is selected to measure the meat quality index. The fish fat measuring instrument can be used to measure without killing the parent fish, which can not only reduce the cost, but also better protect the genetic resources.

specific Embodiment approach 3

[0032] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that N≥30 in Step 5. Other steps and parameters are the same as those in Embodiment 1.

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Abstract

The invention discloses a method for structuring a carp breeding parent population with excellent muscle quality and refers to a structuring method of a carp breeding parent population. The method for structuring the carp breeding parent population with excellent muscle quality solves the problems that the existing breeding process of carp with excellent muscle quality is big in working intensity, multiple in generations, long in breeding cycle, and high breeding cost; the obtained measurement data is poor in representativeness, and muscle quality character inheritance of the selected new variety is not stable enough, and low-quality individual in the group cannot be deleted, and so on. The structuring method comprises the following steps: firstly, marking electronic identity; secondly, recording an individual phenotype; thirdly, measuring genetic distance between individuals by using a microsatellite marking technology; fourthly, confirming quantity of effective group; fifthly, obtaining a corresponding relationship between intermuscular fat and phenotype; sixthly, according to the corresponding relationship between intermuscular fat and phenotype, deleting parent fishes with relatively bad phenotype of the intermuscular fat from the breeding parent population. According to the method, the breeding process is small in working intensity, less in generations, short in cycle, fast in effect, low in breeding cost and stable in muscle quality character inheritance, and so on.

Description

technical field [0001] The invention relates to a method for constructing a carp breeding parent group. Background technique [0002] Among the more than 800 species of freshwater fish in China, carps account for more than half, and are one of the most representative farmed fish in China, especially occupying a very important position in Eurasian fish culture. With the improvement of people's living standards, ordinary people pay more and more attention to the quality of meals, and the requirements for carp muscle quality are also getting higher and higher. [0003] At present, the breeding of new carp varieties with good muscle quality is carried out by hybrid seed production first, and then in the breeding process of each generation, the "phenotype" selection is mainly carried out with individuals similar to the parents with good muscle quality, and then the selected In the phenotype group, some muscle samples are randomly taken for fat and other muscle index measurement ...

Claims

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Application Information

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IPC IPC(8): A01K61/00A01K61/10
CPCA01K61/00Y02A40/81
Inventor 李池陶石连玉胡雪松贾智英葛彦龙赵新春张秋军王世会
Owner HEILONGJIANG RIVER FISHERY RES INST CHINESE ACADEMY OF FISHERIES SCI
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