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Diagnostic Laboratory

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Promoting the overall well-being of animal health through veterinary diagnostic testing, instruction of professional students, and research in diseases of economic importance to Oklahoma and beyond.

400+ Testing Services

We offer a variety of services for animal testing.
Browse our catalog of diagnostic testing services for farm animals, pets, and wildlife, along with information about sample collection and turnaround times for results.
three men standing in diagnostic lab

Popular Tests and ServicesWe provide necropsy, biopsy, bacteriology and mycology, parasite screening, serology, and molecular diagnostics. See the catalog for our full ranges of services.


OADDL is conducting Highly Pathogenic Avian Influenza (HPAI) testing

May 10, 2024

OADDL is conducting Highly Pathogenic Avian Influenza (HPAI) testing as per FEDERAL ORDER, effective Monday, April 29, 2024 Milk from all lactating dairy cattle MUST be tested for HPAI within 7 days prior to interstate (between states) movement. OADDL will also test milk from lactating cows in the following situations: 1. Dairy cattle suspected of disease due to being sick (must have a FADI number from the State Vet’s Office) 2. Producers interested in the disease status of their apparently healthy animals 3. Samples taken from other animals in dairies associated with the HPAI disease event

Free testing for Equine Neurologic Diseases

November 10, 2023

The Oklahoma Department of Agriculture Food and Forestry (ODAFF) is subsidizing testing for Oklahoma horses with clinical signs of central nervous system disease. Testing is provided by OADDL

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