Our dog had a mysterious bowel issue that wasn’t treating with the standard food change methods. Vet did a dna and found he’s more chihuahua than Australian Shepherd despite being dead on shepherd by appearance. Then more or less immediately they worked out his issue since chis have specific bowel issues that don’t usually happen in aussies.
So it does have valid uses for assisting diagnostic medicine
For breeders it is important. For everyone else? Bragging rights.
Our dog had a mysterious bowel issue that wasn’t treating with the standard food change methods. Vet did a dna and found he’s more chihuahua than Australian Shepherd despite being dead on shepherd by appearance. Then more or less immediately they worked out his issue since chis have specific bowel issues that don’t usually happen in aussies.
So it does have valid uses for assisting diagnostic medicine