Milk Pregnancy Test

Convenient and no stress for cows or farmers

Meet Adam Lawson

Adam Lawson – owns and manages a herd of 160 milking cows in North Cassingray, Fife. He has been an active user of the Alertys™ Milk Pregnancy Test from IDEXX for six years.


Adam first heard about the test through his milk recorder, and following their conversations he decided to start using the ‘PregCheck’ service, provided by CIS. 

He has used the service on his whole herd routinely through his monthly milk recording service ever since. Adam normally checks for pregnant cows once per gestation, from 35 days after insemination using the milk pregnancy test. In addition, Adam also involves his Vet on a monthly basis to check the cows that came back as a recheck or negative result.

The main reasons I started to use the milk pregnancy test are because of the ease of use. As the samples are already taken through my monthly milk recording, and are already in the laboratory, there is less blocking of the cows, which means they’re out to pasture sooner. 

I also find the test is less invasive for my cows, which all helps with productivity

Adam also mentions his experience with a recheck result he once received, which for him showed a real advantage for using the test. 


He says; “A cow once had a recheck result and so I had the Vet check her on their next visit. I was informed by the Vet that there was a calf there. After 60-70 days, I used the milk test again to identify this cow’s pregnancy and it came back negative. I called my Vet to double-check again and indeed that calf was gone. In the end, I had to intervene in the cow’s abortion process, but due to being able to use the test in-between my monthly milk recordings and through the self-sampling service, I was really impressed with how the milk pregnancy test worked in this situation”

The Milk Pregnancy Test is convenient and brings no stress and less handling for me and my cows. I am very satisfied with the test and would definitely recommend it to other farmers, especially during the Covid-19 pandemic

PAG Pregnancy Checker

The simple Milk Pregnancy Test measures Pregnancy Associated Glycoproteins (PAGs)

PAGs are produced by the placenta once pregnancy is established

Milk samples can be tested from 28 days post-insemination to find non-pregnant cows, and throughout gestation to confirm pregnancy status

Up to 24% of cows can lose a pregnancy from 28 days after breeding 

Reliable pregnancy confirmation, 98% accuracy

Available from CIS, NMR and QMMS

What other customers are saying

Christopher James

James Bargh

Mark Davis 

Patrick Stevens

1200 cows, UK

90 cows, UK

220 cows, UK

240 cows, UK

Reliable, Simple and Trusted

Developed by IDEXX, a world leader in veterinary diagnostics, the Alertys™  Pregnancy Tests have been performed more than 44 million times since 2010. Milk testing is trusted by tens of thousands of farmers around the world.
For more information on the Alertys™ Milk Pregnancy Test, please contact your milk recording organisations or visit our website:

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