Rayudika Aprilia Patindra Purba is interested in research areas including pharmaceutical science, nutritional physiology, nutritional modelling, ruminal microbiology, nutrigenomics, and metabolomics. Rayudika has used local resources to modulate feed utilization in ruminants. Transcriptomics, metabolomics, and bioinformatics have been some of his interests during his postdoctoral period. Rayudika thus indulges his strong passion for the modulation of animal products and their derivatives useful to humankind.