The Texas Veterinary Medical Diagnostic Laboratory, TVMDL, includes four diagnostic laboratories serving veterinarians, livestock producers and government agencies.


Terry Hensley

Assistant Director for Diagnostic Services


483 Agronomy Road
College Station, TX 77843

M-F 8:00 a.m. – 5:00 p.m.

TVMDL is a member of The Texas A&M University System and Texas A&M AgriLife and includes four diagnostic laboratories serving veterinarians, livestock producers, and government agencies. TVMDL performs an average of 1 million tests per year on submissions from Texas, neighboring states, and around the world.

TVMDL has proudly served Texas as the state veterinary diagnostic laboratory for over 50 years. Our work in diagnostic testing, veterinary medicine, and disease surveillance promotes animal health and protects agricultural, companion animal and public health in Texas and beyond.


TVMDL tests thousands of specimens from clients across Texas, in neighboring states and around the world every business day, protecting the health of livestock, poultry, companion animals, exotic animals, racing animals and wildlife. Veterinarians, animal owners, animal industries and government agencies depend on TVMDL’s expertise for early detection and control of diseases. TVMDL also belongs to a nationwide network of laboratories that provide surge-testing, response and recovery capacity in the event of an animal disease outbreak. Over its history, TVMDL has played a critical role in recognizing and containing outbreaks of anthrax, avian influenza, chronic wasting disease, equine piroplasmosis and many other economically devastating animal diseases.

TVMDL has locations in College Station and Canyon:

TVMDL-College Station
483 Agronomy Road
College Station, TX 77843

3209 Russell Long Blvd.
Canyon, TX 79016

635 Malone Drive
Center, TX 75935

1162 East Sarah DeWitte Drive
Gonzales, TX 78629

General Testing

For inquires about available tests, specimen types, test prices, or turnaround times, please refer to the <a href="https://tvmdl.tamu.edu/tests/">TVMDL test catalog</a>. Clients may search the catalog by a test’s name or test code. The test catalog may also be accessed via the TVMDL Mobile app.


TVMDL does not see or treat animals. If you have clinical requests or need immediate assistance with an animal emergency, please contact a veterinary clinic.

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