Q. What is BioPRYN®?

A. BioPRYN is a blood pregnancy test for ruminants, and has specific appeal for the livestock industry, because it delivers fast, accurate, and economical pregnancy diagnostic results.

Q. How does BioPRYN detect pregnancies?

A. BioPRYN evaluates the blood (more specifically, the serum or plasma) of ruminants for a protein called Pregnancy Specific Protein B (PSPB). PSPB is produced by the placenta, and therefore pregnant animals will have the protein in their blood. The test uses enzyme-linked immunosorbent assay (ELISA) technology for processing, which contributes to its low cost and fast turn-around.

Q. How early in a pregnancy can animals be tested with BioPRYN?

A. Cows can be tested at 40 days or later, after breeding.

Q. What is the accuracy of BioPRYN?

A. BioPRYN is greater than 99 percent accurate when the test identifies animals, at least 40 days post breeding, as open, with only 1 percent showing false-open (false-negative).

Inaccuracies can also occur because of mislabeling of samples or cross contamination of one sample with another. A new needle and tube must be used for each animal.

Q. How much does BioPRYN cost?

A. The test itself costs $5.00 from the laboratory that processes it (this price may vary by laboratory), plus the cost of a sample tube and needle. Shipping expenses also must be added if the tests are not processed locally.

Q. What are the advantages of using BioPRYN versus other methods of pregnancy diagnosis?

A. Producers incur approximately the same or less cost using BioPRYN compared to rectal palpation by a veterinarian, and less cost than ultrasound. It is also considerably less expensive than currently available on-farm diagnostic methods.

The test is more convenient to producers because on-farm personnel can draw and ship blood samples, rather than working around a veterinarian’s schedule. Eliminating rectal palpation also frees up the veterinarian to concentrate on higher-level issues with the producer.

No test is more accurate than BioPRYN, and BioPRYN is more accurate than early palpation and at an earlier time. Thus, fewer cows are misdiagnosed (called open by mistake) and treated (and aborted) to initiate new reproductive cycles. This can amount to a considerable savings in not having to re-establish a pregnancy, and by reducing days open.

Q. How long does it take to receive the test results?

A. Receipt of test results vary by testing location. Click here to locate your testing laboratory schedule and method of reporting.

Q. How should blood samples be prepared and shipped?

A. The producer needs to draw blood samples from the cow (tail vein, jugular which is an easy-to-learn procedure). Blood samples of at least 2 mL per animal should be collected in individual vacuum tubes and labeled with each animal’s identification number. It is important to draw samples using individual, disposable needles, to avoid cross-contamination between animals. Needles and tubes can be obtained from veterinarians or veterinarian supply companies.

Tubes containing blood samples should not be opened and should be packed in a well-padded box to avoid breakage. They do NOT need to be packaged in ice. Samples may stay in transit for several days without compromising the results of the test. Fastest results, however, are achieved when samples are shipped via an overnight carrier.

Shipping instructions

Q. Who manufactures BioPRYN?

A. Dr. R. Garth Sasser of BioTracking Inc. developed the BioPRYN test using technology licensed from the University of Idaho. BioTracking Inc. is the sole manufacturer of BioPRYN.

Q. How can a producer get started using BioPRYN?

A. Producers should contact BioTracking or one of the BioPRYN affiliate laboratories for detailed shipping instructions. Be sure to check with the laboratory for pricing and the days the BioPRYN test is offered.

Q. To whom is the test available?

A. Thanks to the availability of efficient shipping methods, BioTracking Inc. or one of the BioPRYN affiliate laboratories can process samples from producers throughout the United States and internationally. Veterinarians who serve smaller herds also may wish to regularly pool samples from several herds and ship them for processing.

Q. Where can I find more information about BioPRYN?

A. To learn more about BioPRYN, contact BioTracking Inc.

Phone: (208) 882-9736