Used in immunological research to detect and quantify duck interleukin-8 (IL-8/CXCL8) levels in biological samples such as serum, plasma, or cell culture supernatants. This ELISA kit is particularly useful in studies involving duck immune responses, inflammation, and infectious diseases, helping researchers assess the role of IL-8 in host defense mechanisms. It enables accurate measurement of cytokine expression during viral or bacterial challenges, supporting advancements in avian health, vaccine development, and comparative immunology.