How to Extract DNA From Dog Blood

Dog DNA testing is mainly used to determine the ancestry of dogs, confirm or contest the parentage of a puppy and to help determine breed temperaments and genetic health issues. It can also be useful for ruling out your dog being what a homeowner insurance company considers a dangerous or aggressive breed. Similar to human genes, each dog gene is present in two copies, one from the mother and one from the father. Breed-specific DNA signatures determine breed heritage.

Things You'll Need

  • 18-to 22-gauge hypodermic needles
  • 3-ml or larger syringe
  • EDTA anti-coagulant lavender-topped tube
  • 1- to 3-ml unclotted blood sample
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Instructions

  1. Drawing and Packaging the Blood for DNA Testing

    • 1

      Order the test kit online or at your veterinarian's office. Blood tests range between $100 and $200, plus any veterinarian charges.

    • 2

      Have a veterinarian draw a blood sample of at least 1 ml, but preferably 2 ml or more, from your dog and immediately put it in an anti-coagulant tube.

    • 3

      Turn the tube upside-down and right-side up several times to prevent clotting. Clotted samples are unacceptable.

    • 4

      Properly identify the sample, and package it according to your test kit's instructions. Then, send it to the lab for analysis.

    • 5

      Log into the test lab's website or periodically check with your veterinarian to track the progress of your dog's test. You'll get your written results by mail within a few weeks.