We are well known for our bird sexing service and offer a variety of bird DNA tests to help keep your birds healthy and records accurate.


Our environmental services are designed to aid surveys of protected species such as bats and great crested newts.

Farming & Veterinary

More details coming soon…


More details coming soon…

chXout® Applied Genetics is a registered trademark of Complement Genomics Ltd, based at the prestigious Durham Genome Centre.

The Durham Genome Centre can be found in the lovely village of Lanchester, County Durham. It is home to chXout and further Complement Genomics services.  

Our rural idyll fortuitously led us to the DNA sexing of peregrine falcons and as a result our flagship non-human DNA testing service, chXout®, was formed. We offer a range of services suitable for the general public, professionals and conservation projects alike.


We have worked with many large clients since the start of our DNA bird sexing service who choose to return to us each breeding season. We are starting to build our feedback on Trustpilot.


chXout® belongs to Complement Genomics Ltd, a long-established and trusted DNA testing company serving professionals & the general public with DNA testing since April 2000.

Fungi Identification
Customer Care

We have a dedicated chXout® customer service contact for a professional and personal service. We are UK based and will never send your samples overseas for testing. 


 Quality assured DNA testing. If we do not achieve the result the first time, we will repeat the experiment free of charge, depending on sample quality and quantity.