Directly prior to sampling the animal hair should not be washed and only precisely combed of impurities (it should not take place earlier than 3 days after the previous wash of the dog).
Take a sample from the area of the shoulder blade or groin. Separate the first strand and cut it with sharp scissors just by the skin. For the test send 1,5-2 cm of the strand, measuring from the place of cutting (from the skin), throw away the rest of the strand. Repeat the action as many times so that the weight of the cut hair is 300-400 mg, which corresponds by volume with 1 flat table spoon.
In order to take sample from the dog with short, smooth hair, a shaver should be used. The amount of the material necessary for the test and place of sampling remain unchanged. For precise determination of trends, repeat the test every 6 months.
