Used in immunological research to detect and quantify duck immunoglobulin G (IgG) in biological samples such as serum, plasma, or tissue extracts. Commonly applied in studies involving avian immune responses, vaccine development, and disease surveillance in ducks. Supports research on infectious diseases like duck hepatitis, avian influenza, and other pathogens affecting waterfowl. Enables high-throughput analysis in laboratories focused on veterinary diagnostics and poultry health monitoring.