BioTracking, Inc. introduces a new tool to the industry, the BioPRYNhfr-25 blood pregnancy test. At 25 days post-breeding, BioPRYNhfr-25 is an early, accurate open detection for heifers.

“BioPRYNhfr-25 gives dairy producers and heifer raisers an opportunity to increase their return on investment (ROI) by identifying open heifers earlier,” said Willy Tate, co-owner of BioTracking Inc.

A convenient and accurate tool, BioPRYNhfr-25 provides information to make timely, critical heifer reproductive management decisions. Having the ability to re-enroll heifers into a reproductive protocol earlier gives farmers the ability to reduce their herd’s age at first calving (AFC). “AFC is the most important benchmark for achieving the highest economic return from a replacement program,” said Tate. “For every month delayed beyond 22 months, AFC costs about $100 per heifer in lost milk production.”

Research in commercial settings confirms BioPRYN is 99.9% accurate when a heifer is identified as open 25 days post-breeding or greater. The BioPRYN® test is designed to detect Pregnancy-Specific Protein B (PSPB) in heifers as a result of their accelerated physiological response in initial development of placental tissues.

“BioPRYNhfr-25 is another tool in the toolbox to help make heifer reproductive management decisions. We’re excited about the opportunities this new early test offers dairy farmers and heifer raisers,” said Tate.

To learn more about BioPRYNhfr-25 and BioPRYN® blood tests, visit