IDEXX Alertys pregnancy test kit.

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Alertys OnFarm Pregnancy Test

Test cow side, on your schedule

The Alertys OnFarm Pregnancy Test detects pregnancy-associated glycoproteins (PAGs) in whole blood (EDTA) as early as 28 days postbreeding and 70 days postcalving.

Use this on-farm pregnancy test to:
  • Find empty animals in minutes with 99.7% accuracy
  • Increase safety for you and your workers.
  • Read results easily to make decisions quickly.
  • Shorten calving interval by testing at day 28 post breeding and throughout gestation.
  • Test small groups of animals affordably.

* Worldwide

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Test details


  • Bovine EDTA whole blood, plasma, or serum sample types
  • Lateral flow
  • Results available in 5–20 minutes
  • Run on farm 15°C — 40°C

Part number and size

98-26441-00 (25 tests)

Alertys OnFarm Pregnancy Test insert

5 steps from sample to results

How to run the Alertys OnFarm Pregnancy Test (3 minutes)
How to take a blood sample (3 minutes)
Alertys OnFarm workflow Step 1.

Step 1

Lift the tail to obtain a blood sample. Immediately after drawing the sample, invert the tube 10 times.

Alertys OnFarm workflow Step 2.

Step 2

Draw up the sample into the pipette.

Alertys OnFarm workflow Step 3.

Step 3

Dispense the full pipette of blood into the sample port.

Alertys OnFarm workflow Step 4.

Step 4

Add the wash solution within 2 minutes.

Alertys OnFarm workflow Step 5.

Step 5

Read results 5–20 minutes later.

Visual display shows results

Alertys OnFarm test result: Pregnant.
The animal is PREGNANT if the test line (T) is red or pink.
Alertys OnFarm test result: Open.

The animal is empty if no test line appears.

Alertys OnFarm test result: No control line; repeat test.
The test should be repeated if no control line (C) appears.

About ruminant pregnancy

Establish a protocol for reproductive efficiency with Alertys pregnancy tests.

  • Work together. Reproductive efficiency improves when producers, veterinarians, and laboratories work together to identify empty animals early.
  • Trust the science. Alertys pregnancy tests detect a highly specific marker of pregnancy: pregnancy-associated glycoproteins (PAGs). Unlike progesterone levels that fluctuate naturally during a cycle, PAGs are only produced in the presence of an embryo or foetus.
  • Depend on accurate results. Use Alertys pregnancy tests to help guide veterinary recommendations for animal health and productivity.

Learn more about the OnFarm Test and other sample-based testing options

*Not all products are available and/or registered in every country.
† Data on file