Used in immunological research to detect and quantify secreted immunoglobulin A (sIgA) in biological samples from rabbits. This ELISA kit enables researchers to assess mucosal immune responses, monitor antibody production in gut, respiratory, or salivary secretions, and evaluate vaccine efficacy or infection outcomes in rabbit models. It is particularly useful in studies related to infectious diseases, immunology, and mucosal biology where precise measurement of sIgA levels is critical for data interpretation. The assay offers high sensitivity and specificity, allowing for reliable detection even in low-concentration samples.