IgA assay

Immunoglobulin A (IgA) are essential antibodies of the immune system, mainly located in the mucous membranes (intestinal, respiratory, salivary). They play a key role in protection against pathogens by forming a first immune barrier. In the field of animal health , their measurement is a valuable tool for assessing immunity, optimizing nutrition and monitoring the effectiveness of immunostimulating formulations. Their quantification is also relevant in the monitoring of dairy products enriched with immunoglobulins.

Analytical methods for the determination of IgA

The dosage of IgA is based on sensitive and specific immunoanalytical methods:

• ELISA (Enzyme-Linked Immunosorbent Assay) : reference method for detecting and quantifying IgA in biological or food matrices, using specific antibodies.
• Spectrophotometry : used as a complement, particularly for reading ELISA plates, ensuring precise and reproducible quantification.

These approaches guarantee high reliability, comparable to other immunological assays offered by YesWeLab, such as IgG assay or IgM assay .

Industrial and veterinary applications

IgA testing is useful in several contexts:

• Animal health : evaluation of the immune response in livestock (cattle, sheep, goats, pigs, poultry).
• Animal nutrition : monitoring the effects of immunostimulant or probiotic additives on strengthening mucosal defenses.
• Dairy products : control of immunoglobulin content in colostrum and fortified milk, in order to enhance their functional potential.
• Research and development : immunological studies, development of new nutritional or vaccine formulations.

glutathione peroxidase (GPx) assessment .

Matrices analyzed for IgA

IgA assays can be performed on different matrices: animal sera, plasma, mucous secretions, dairy products (colostrum, fortified milk), and immunostimulatory formulations in liquid or solid form. Each matrix requires appropriate preparation to eliminate interference and ensure accurate results.

Scientific and practical issues

The measurement of IgA is of particular importance in health and nutritional monitoring:

• Assessment of mucosal immunity to detect increased susceptibility to infections.
• Monitoring the effectiveness of nutritional interventions (addition of prebiotics, probiotics or immunomodulatory plant extracts).
• Promotion of dairy products enriched with claims related to immune strengthening.
• Contribution to animal selection programs aimed at improving resistance to pathologies.

These issues are part of a global approach to securing and optimizing animal production, in addition to nutritional analyses such as protein dosage or dietary fiber dosage .

YesWeLab's expertise in IgA testing

YesWeLab collaborates with a network of partner laboratories specializing in immunological and nutritional analyses, most of which are certified and accredited (ISO 17025, COFRAC, etc.). Our experts guide you toward the most appropriate method based on your matrices and objectives: immune monitoring, product development, regulatory compliance. Thanks to our digital platform, managing your analyses is simplified: online quote requests, sample tracking, and rapid delivery of results. Since 2020, numerous manufacturers and animal health players have trusted us to strengthen the quality and reliability of their products.

Take action

Do you want to assess mucosal immunity or enhance the value of your immunoglobulin-enriched dairy products? Entrust your samples to YesWeLab for accurate and reliable IgA testing. Request a quote online now for your analyses .