DNA Databank



To participate in the DNA Repository, complete the DNA databank application and submit it to the OFA. You will receive the appropriate swab or blood collection kit in the mail. The Health Survey portion can be completed online, printed, and mailed to the OFA at the address below.

DNA Blood Sample Collection

Directions for submitting DNA sample via Blood Sample:

  1. Contact your veterinarian to make arrangements to have blood drawn. This can be done at an appointment made specifically for this purpose, or you can arrange to have the blood drawn during some other regularly scheduled visit. Be sure to tell your veterinarian the blood sample is to be used for research purposes. Many veterinarians will then do the procedure at a reduced rate or at no cost.
  2. Take your dog and ask that a sample of 5 to 10 cc’s of whole blood be drawn into EDTA purple top tubes. Place the bar code label supplied with the kit onto the EDTA tube to identify the sample. If collecting multiple samples, please take care to ensure matching the correct samples with the correct bar code labels.
  3. The blood sample only needs to be put in the tubes and rocked gently a few times to distribute the anticoagulant. The sample should NOT be spun, have serum extracted, or have anything further done to it.
  4. Ship the sample via an overnight delivery service to the University of Missouri (address below). DO NOT ship samples on Fridays, as there will be no one available at the lab to receive the sample on Saturday.
  5. The sample should be shipped using cool packs, and ideally should be shipped immediately. If samples are held for a day or over a weekend before shipping, they must be refrigerated.
  6. Complete the health survey for each dog and send it to the OFA using the OFA mailing label provided. The health survey is a critical part of the repository. The samples are of little value without the corresponding phenotypic history and genealogy. If there are any significant health changes for this dog in the future, please email the OFA at ofa@offa.org with the update.

Thank you for participating in the CHIC DNA Repository.

DNA Cheek Swab Sample Collection

Directions for submitting DNA sample via Cheek Swab:

  1. Before collecting sample, make sure that the animal is not chewing any food. If the animal has been eating, let it drink water, or wash its mouth with water.
  2. If taking samples from multiple dogs, sample ONE at a time and complete the process to avoid any cross contamination of the DNA samples.
  3. Four buccal swabs are included in each kit. You may split the collection into multiple sessions. Remove the brush from the envelope and brush the inside of the animal’s cheek, or brush the gums. Rub firmly for 5 to 10 seconds, but take care not to injure the cheeks or gums.
  4. Wave brushes in the air for several seconds to air dry before inserting them back in the labeled brush envelopes.
  5. Place the bar code label pre-printed with the dog’s registration number on the brush envelope in the blank area to the left of the instructions.
  6. Place the samples in an envelope and use the pre-addressed label for UC Davis. If submitting multiple samples, repeat steps 1 through 5 for each dog independently, taking care to avoid any sample cross contamination and using the correctly labeled envelopes for each swab. All the samples may be mailed back together.
  7. Complete the health survey for each dog, and send it to the OFA using the OFA mailing label provided. The health survey is a critical part of the repository. The samples are of little value without the corresponding phenotypic history and genealogy. If there are any significant health changes for this dog in the future, please email the OFA at ofa@offa.org with an update.

Thank you for participating in the DNA Repository.