IgA measurement

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

Analytical methods for IgA assay

IgA measurement relies on sensitive and specific immunoanalytical methods:

• ELISA (Enzyme-Linked Immunosorbent Assay) : reference method for detecting and quantifying IgA in biological or food matrices, through the use of 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 or IgM assays .

Industrial and veterinary applications

IgA testing is useful in several contexts:

• Animal health : assessment of the immune response in livestock (cattle, sheep, goats, pigs, poultry).
• Animal nutrition : monitoring the effects of immunostimulatory additives or probiotics on strengthening mucosal defenses.
• Dairy products : monitoring of immunoglobulin content in colostrum and fortified milks, 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 various matrices: animal sera, plasma, mucous secretions, dairy products (colostrum, fortified milk), and immunostimulatory formulations in liquid or solid form. Each matrix requires specific preparation to eliminate interferences and ensure accurate results.

Scientific and practical issues

Measuring IgA levels 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).
• Promoting enriched dairy products through claims related to immune system strengthening.
• Contribution to animal breeding programs aimed at improving resistance to diseases.

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

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 relevant method based on your matrices and objectives: immune monitoring, product development, and regulatory compliance. Our digital platform simplifies the management of your analyses: online quote requests, sample tracking, and rapid results delivery. Since 2020, numerous manufacturers and animal health professionals have trusted us to enhance the quality and reliability of their products.

Take action

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