Acta Veterinaria et Zootechnica Sinica ›› 2023, Vol. 54 ›› Issue (10): 4028-4039.doi: 10.11843/j.issn.0366-6964.2023.10.003

• REVIEW • Previous Articles     Next Articles

Application Progress on Genomic Selection Technology for Dairy Cattle in China

SUN Dongxiao1*, ZHANG Shengli1, ZHANG Qin1,2, LI Jiao3, ZHANG Guixiang3, LIU Chousheng3, ZHENG Weijie1   

  1. 1. College of Animal Science and Technology, China Agricultural University, Beijing 100193, China;
    2. College of Animal Science and Technology, Shandong Agricultural University, Taian 271018, China;
    3. National Animal Husbandry Station, Beijing 100125, China
  • Received:2023-04-14 Online:2023-10-23 Published:2023-10-26

Abstract: The basic principle of genomic selection (GS) is to evaluate and select the genetically excellent individuals based on genome-wide high-density markers (mainly SNPs). By using genomic selection technology, it is available to accurately select young bulls and heifers early in life without relying on phenotypic information, thereby reducing the generation interval from 5-6 years to around 2 years, and drastically shortening generation intervals, thereby significantly reducing breeding costs and accelerating genetic progress in the population. In 2009, genomic selection technology has been first applied to the genetic evaluation of Holstein young bulls, marking the beginning of a new era in dairy cattle breeding. Herein, this review systematically summerizes the basic process and advantages of genomic selection, the current status of genomic selection applications in developed countries in the dairy industry, including the reference population size, selection traits and application effects, and the establishment and application effects of the genomic selection molecular breeding technology system for Chinese Holstein cattle, with the aim of providing references and directions for dairy cattle breeding program in China.

Key words: dairy cattle, Chinese Holstein, genomic selection, genetic progress, application effects

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