BioTracking
Makers of BioPRYN®

A Non-invasive, Quick Response, 97% Accurate, Embryo Safe, Quality Assured Pregnancy Test for Livestock.

Blood test for cattle, sheep, elk, goats, bison, and deer.

The Physiology: What the Cow Does
After artificial insemination (A.I.) or natural breeding and conception, or after embryo transfer, the placenta containing the embryo develops to a long filamentous structure. Binucleated cells begin to develop on the surface of the placenta before the third week after conception. These cells produce PSPB.

The cells are migratory; they leave the placenta and enter the uterus. Once there they break apart, delivering PSPB to the maternal circulation. PSPB can be detected in some cows early in the third week.

Timing of the BioPRYN® sample is important to assure 97 percent accuracy on a herd basis. After breeding, one must wait to sample blood at or after 30 days. The lactating cow also must be 90 days after calving to remove residual PSPB of the previous pregnancy from the circulation.  Embryos that have been transferred need two more days for development and thus dams are sampled at 32 DAYS OF EMBRYO AGE.

What the Owner or Vet Does. . .