ELISA Testing for Cattle: When and Why Your Herd Needs It

What Is ELISA and Why Is It the Standard?

ELISA stands for Enzyme-Linked Immunosorbent Assay — a laboratory technique that detects specific antibodies or antigens in blood serum. For cattle and buffalo diseases, ELISA serves as the primary screening tool because it offers high sensitivity (ability to detect true positives), can process hundreds of samples simultaneously, is cost-effective for large-scale herd screening, and is recognised by government regulatory bodies and international trade organisations.

At PVD India, we process ELISA tests through Chaitanya Laboratories for the most common livestock diseases requiring serological surveillance. The test requires a simple blood sample — our technician draws 5-10 ml from the jugular vein during a farm visit, separates the serum, and transports it to the lab for processing.

Diseases That Require Mandatory ELISA Screening

Brucellosis: This is India's most economically important zoonotic disease (transmissible from animals to humans). ELISA screening is mandatory for cattle involved in interstate transport, dairy cooperative enrollment, artificial insemination programmes, and livestock exhibitions. A single Brucella-positive animal can infect an entire herd and pose a direct health risk to farm workers and their families.

Foot-and-Mouth Disease (FMD): Post-vaccination ELISA monitoring is used to assess herd immunity levels and identify non-responders. The National Animal Disease Control Programme (NADCP) uses ELISA data to track vaccination efficacy across states. Leptospirosis screening is important for herds with reproductive problems including abortions, stillbirths, and infertility — Leptospira antibody detection via ELISA helps identify infected herds early.

When Your Herd Needs ELISA Testing

PVD recommends ELISA screening in the following situations: before purchasing new animals (pre-purchase screening for Brucella, TB, and Johne's disease), quarterly monitoring for dairy cooperatives and commercial dairy operations, after FMD vaccination to verify immune response across the herd, when unexplained abortions, infertility, or reproductive failures occur in the herd, for livestock insurance applications that require disease-free certification, and before interstate or international transport as required by animal health regulations.

For dairy cooperatives in Pune, Baramati, and Indapur, we offer herd-level ELISA screening packages that include sample collection from all milking animals, testing for 2-3 priority diseases, individual animal reports with positive/negative/suspect classification, herd-level summary with prevalence data, and recommendations for management of positive animals.

Cost and Logistics

Individual ELISA tests at PVD cost ₹400-₹800 per sample depending on the disease being tested. Herd screening packages (20+ animals) are available at discounted rates. Doorstep blood collection is free within Pune district.

Results are delivered within 48-72 hours. For urgent regulatory requirements (interstate transport permits, insurance claims), priority processing is available with results in 24-36 hours. Every ELISA report includes the test methodology, cutoff values, individual animal results, and interpretation by our pathology team.

Frequently Asked Questions