The clinical pathology section at the Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) in College Station now offers an Equine Pregnancy Panel. This panel combines progesterone and estrone sulfate at a discounted price to aid in the diagnosis of pregnancy in the mare.
There is not a one-size-fits-all serum pregnancy test for horses. The best test for each horse can vary depending on the estrous cycle, number of days since breeding, and practitioner’s preference. Additionally, estrus and breeding information may not always be known (i.e. pastured horses).
The TVMDL Equine Pregnancy Panel provides measurement of progesterone by chemiluminescence and estrone sulfate by radioimmunoassay. Progesterone results are available within one day and estrone sulfate results are available within three days. When performed together, these two tests are more likely to confirm pregnancy than either test alone, especially when estrous cycle or breeding information is not available. Numerical results are accompanied by interpretive comments. When equine pregnancy testing is requested on TVMDL submission forms (vs. a specific test/hormone name), this panel will be performed.
Equine Pregnancy Panel (ChL & RIA)
Test Code: 1538
Turnaround: This test is performed Monday through Friday at the College Station laboratory with results in three business days.
For more information on the Equine Pregnancy Panel, estrone sulfate, or progesterone testing, please visit the TVMDL website or TVMDL Mobile app.