The animal hair should not be washed and only precisely combed of impurities (take a sample at least three days after the last bath of the dog). For testing, take a hair from several places – elbow, groin, hip, shoulder blade and tail area. Thanks to this, you will avoid a visible mark of sampling in one place.

Cut the hair with sharp scissors. For the test, send 1 inch of the strand, measuring from the skin side. The remaining part of the hair can be removed. Repeat this operation as many times as necessary, so that the weight of the sample is 300-400 mg, which corresponds to the volume of 1 tablespoon.

To take a sample from the dog with short, smooth hair, a shaver should be used. The amount of material necessary for the test and place of sampling remain unchanged. For precise determination of trends, repeat the test every 6 months.