Used in immunological research to quantify levels of bovine interleukin-2 receptor in biological samples such as serum, plasma, or cell culture supernatants. This kit enables researchers to monitor T-cell activation in cattle, supporting studies in veterinary immunology, infectious disease response, vaccine development, and autoimmune conditions. It is particularly valuable in assessing immune system status in livestock and in evaluating the efficacy of therapeutic interventions. The assay provides a sensitive and specific means to measure soluble IL-2R, serving as a biomarker for lymphocyte activity and immune modulation in bovine models.