Working Today to Preserve Tomorrow.

Latest News

DNA Blood Draw will be held at the JRTCA National Trial. Read more about it.

Neonatal Ataxia mutation in Jack Russell Terriers found in May 2019.  Read more about NNA.

To update health information on a terrier with blood in the JRT DNA Bank, please use the DNA Bank Update form.

The JRT Health Registry went live in April 2015.  Read more about the Registry.

The Spinocerebellar Ataxia Mutation was found in December 2012.  Read more about SCA.

The gene for Primary Lens Luxation was isolated in the Jack Russell in September 2009. Read more about PLL.

The Degenerative Myelopathy mutation was found in the Jack Russell in December 2008. Read more about DM.

Health Registry Statistics

Dogs Tests
703 2106
  CAER BAER PLL SCA DM HU LOA NNA
Total 286 263 649 565 226 38 30 8
Normal 264 263 279 256 139 24 29 6
Carrier 0 0 57 21 36 9 0 0
Affected 0 0 1 0 0 2 0 0
NBD     312 288 52 3 1 2

As of Sept 25, 2019

What is the JRT Health Registry?

Submit your Jack Russell Terrier and test results to the JRT Health Registry.

Testing Forms

Genetic testing forms can be found in the Forms Library.

To update health information on a terrier with blood in the JRT DNA Bank, please use the DNA Bank Update form.

Normal By Descent (NBD)

When a dog tests Normal it means he is carrying two normal copies of the gene in question, therefore he can only pass on a normal copy. When two normal tested dogs are bred their off-spring will also carry two normal copies, hence the term NBD.

However there’s one important aspect being forgotten. This rule only holds true if you are using gene based testing. If you use marker tests or linkage tests you must test every generation. This is why AKC and OFA will only certify first generation NBD’s from gene based testing and WILL NOT certify NBD’s from marker and linkage testing.

Read More About NBD