Each horse has it's own unique set of DNA results which enables stud book registration, parentage testing, implication of equine relationships and positive identification of stolen horses. (NB For parentage testing DNA is required from both parents in order to gain a 100% data match and conclusion on parentage.)

These DNA records, which are vital to breeding programmes given they prove bloodlines and pedigree of ancestors and offspring, are an essential element of our mother studbook.

We require a hair sample for DNA profiling if you are applying to enter the Mother studbook at the Main (MSB)  or Supplementary 1 (SSB1 )  or 2 (SSB2) levels.

We do not require a DNA profile if you are applying to enter the Mother Studbook at the Breed Identity level (BIR), the Part Bred Register (PBR) or the Identity Register (IR) .   

Requesting a DNA Profile

Please complete the DNA Profile Request Form and send it in to our Head Office address along with your certified hair sample (see below) and payment.

Upon completion of the test the DNA profile results will be uploaded to the TGCA database as part of your horse's record of registration. If you make a specific request then the TGCA will email you with a copy of the results.  

The DNA 'fingerprint' of your horse is presented as a set of universal markers which conform to international standards and therefore can be cross-compared by you if you wish with DNA marker-reports produced by other laboratories using the same methods.    


The TGCA may use this DNA data in their activities associated with the future development of the breed.   


Please note it can take up to 3 weeks for results to be returned. 

Obtaining your Hair sample 

Please arrange for your Veterinary Surgeon to: 

  • Collect the hair by pulling a minimum of 50 hairs from either the mane or tail (all hairs must include the bulb root).
  • Place the hair into a small, clean, clear plastic bag and seal it.
  • Check the label you have attached to the bag detailing your name (and TGCA membership number if applicable), the horse's name and microchip number (and TGCA registration number if applicable). 
  • Sign that label to certify that the hair sample is from the animal stated.