Contact Information and Hours of Operation

Contact Information

Louisiana Animal Disease Diagnostic Laboratory

Louisiana State University

River Road

Room 1043

Baton Rouge, LA 70803

Administration 225-578-9777

Sample Receiving and Accessions 225-578-9778

After-hours (pager) 225-219-7957

Fax 225-578-9784


Map to LADDL 


Regular Hours of Operation

8:00 AM - 5:00 PM Monday - Friday


Weekend coverage

includes essential but limited services within the bacteriology laboratory.


Necropsy services

are available on Saturdays provided the animal arrives before 10:00 AM on Saturday.



Essential services are scheduled during extended holidays. Call the for specific closure dates if not listed on this page.


Shipping by Commercial Carrier

FedEx and UPS deliver M-F to the address listed above.


Samples may be dropped off to LADDL after hours and on weekends.

Samples brought to the laboratory after hours should be delivered to the security guard at the LSU School of Veterinary Medicine. Make sure the LADDL Specimen Submission Form accompanies the sample. Laboratory personnel will process the sample on the next business day.


laddlm ap