Molecular marker assistance selection method for reducing abdominal fat percentage of young columba

Abstract

The invention discloses a molecular marker assistance selection method for reducing an abdominal fat percentage of a young columba. The method comprises the following steps of establishing a breeding base group, selecting an adult columba as the breeding base group, allowing the base group to reproduce to obtain a G1 generation, performing molecular marker assistance selection on the reserved G1 generation breeding columba, allowing the reserved G1 generation breeding columba to enter a reproduction period for breeding selection, performing pure breeding and subculturing to obtain a G2 generation, and performing circulation in such a manner to obtain a Gn generation. According to the method, a molecular marker on an L-FABP (Liver Fatty Acid Binding Protein) gene has heredity correlation with the abdominal fat percentage of the young columba, therefore, the abdominal fat percentage of the young columba can be reduced by marker assistance selection; destructive measurement can be avoided; early breeding selection can be realized by utilizing the marker assistance selection; and breeding development can be accelerated.

Description

technical field [0001] The invention belongs to the technical field of poultry genetic markers, and relates to a molecular marker method and application for reducing the abdominal fat rate of meat pigeons. Background technique [0002] my country is a big breeding country for meat pigeons. There are about 50 million pairs of breeding pigeons in the country, with an annual output of 800 million pigeons. The growth of meat pigeons in my country is dominated by small-scale farming by farmers, and most of them practice self-propagation and self-cultivation. Due to the inbreeding of small groups and the lack of related breeding techniques, the production performance of the pigeon population is poor or even degraded. The white-feathered king pigeon is a breed imported from the United States, and it is the main pigeon breed currently produced in my country. However, with hybridization, inbreeding, and blind selection, the provenance of the white-feathered king pigeon is mixed, and ...

AI Technical Summary

Problems solved by technology

The growth of meat pigeons in my country is dominated by small-scale farming by farmers, and most of them practice self-propagation and self-cultivation. Due to the inbreeding of small groups and the lack of related breeding techniques, the production performance of the pigeon population is poor or even degraded.

The White Feather King Pigeon is a breed imported from the United States. It is the main breed of meat pigeons currently produced in my country. However, with hybridization, inbreeding, and blind selection, the white feather King Pigeon has mixed sources and uneven production performance.

In recent years, some large-scale enterprises and scientific research units have started breeding meat pigeons, but they have not yet been cultivated into new national breeds, which shows that the breeding of meat pigeons is lagging behind other livestock and poultry such as chickens and pigs.

[0003] Molecular marker-assisted selection is a breeding technology that uses phenotypic and genotypic data to select. It has been widely used in livestock breeding such as pigs, cattle, and chickens. However, it has not been widely used in meat pigeon breeding.

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