The present application relates to the field of
biomedical technology, and particularly relates to a method for screening immune-related metabolites of a calf based on non-
targeted metabolomics. The method comprises the following steps: S1. collecting
peripheral blood of the calf at different time periods from birth to establishment of the
immune system; S2. performing non-
targeted metabolomics analysis on the
peripheral blood samples at the different time periods to obtain differential metabolites at the different time periods; S3. annotating, clustering, performing enrichment analysis and performing overall
change analysis of metabolic pathways on the differential metabolites at the different time periods screened out through a KEGG
database to obtain key metabolites of the calf during establishment of the
immune system and response mechanisms. The present application studies the expression
change patterns of metabolic products of the calf before and after
colostrum, understands the establishment process and response mechanisms of the
immune system of the calf, and provides evidence and theoretical basis for when the passive immune
system of the calf ends and how the immune
system of the calf is regulated at the
molecular level.