摘要Finding out how diet impacts health and metabolism while concentrating on the functional qualities and bio-active components of food is the crucial scientific objective of nutritional research.The complex relationship between metabolism and nutrition could be investigated with cutting-edge"omics"and bioinformatics techniques.This review paper provides an overview of the use of omics technologies in nutritional research,with a particular emphasis on the new applications of transcriptomics,proteomics,metabolomics,and genomes in functional and bio-logical activity research on ruminant livestock and products in the tropical regions.A wealth of knowledge has been uncovered regarding the regulation and use of numerous physiological and pathological processes by gene,mRNA,protein,and metabolite expressions under various physiological situations and guidelines.In particular,the compo-nents of meat and milk were assessed using omics research utilizing the various methods of transcriptomics,prot-eomics,metabolomics,and genomes.The goal of this review is to use omics technologies-which have been steadily gaining popularity as technological tools-to develop new nutritional,genetic,and leadership strategies to improve animal products and their quality control.We also present an overview of the new applications of omics technologies in cattle production and employ nutriomics and foodomics technologies to investigate the microbes in the rumen ecology.Thus,the application of state-of-the-art omics technology may aid in our understanding of how species and/or breeds adapt,and the sustainability of tropical animal production,in the long run,is becoming increasingly impor-tant as a means of mitigating the consequences of climate change.