Recently, the chicken genetics and breeding technology innovation team focused on the genetic basis of chicken feed utilization efficiency, analyzed the genetic rules of traits, identified related functional genes and genetic variations, and provided important for the research and development of molecular breeding technologies to improve chicken feed utilization Theoretical basis. Relevant research results were published on”Genetics Selection Evolution”.
According to the team’s chief researcher Wenjie, feed costs account for more than 70%of the total cost of poultry breeding. Improving feed utilization efficiency is the key to saving costs and increasing efficiency in the breeding industry. The researchers took the white feather broiler sire line population independently cultivated in my country as the research object, based on the domestic first chicken 55K SNP breeding chip”Jingxin No. 1″ genotyping and whole genome association analysis, etc., determined the remaining feed intake of the new white feather broiler line as Medium heritability, and identified the associated QTL region as GGA1:91.27～92.43 Mb. Further research found that the NSUN3 and EPHA6 genes in this region are important candidate genes that affect the feed utilization efficiency traits of broilers.
researchers further improved the accuracy of genetic selection by further using the identified key variants and applying a one-step method integrating SNP marker effects to estimate the value of whole genome breeding . In order to promote the transformation of basic research results into industrial technology applications, this breeding method has been submitted to a national invention patent application.
PhD student Li Wei and Zheng Maiqing are the first authors of the article, and Liu Ranran and Wen Jie are the corresponding authors. The research was supported by the Key Project of Innovation Project of Chinese Academy of Agricultural Sciences and the Post Scientist Project of Broiler Industry Technology System.
link to the original text:https://gsejournal.biomedcentral.com/articles/10.1186/s12711-021-00608-3