Used in immunological research to detect and quantify mouse ovalbumin-specific IgA antibodies in biological samples such as serum, saliva, or mucosal secretions. Commonly applied in studies related to mucosal immunity, food allergy models, and gut-immune interactions. Enables researchers to assess IgA responses following antigen exposure or immunization, particularly in models involving oral tolerance or intestinal inflammation. Widely used in preclinical studies to evaluate vaccine efficacy, immune modulation, and allergic responses in mouse models.