The owner contacts a laboratory offering the DNA test and orders a test kit for that condition, which contains cotton-wool swabs. This means they are simple and easy tests which owners can carry out at home, without any vet involvement and with zero stress for the dog. Whilst DNA tests can be run on blood, they are equally reliable when a dog's cheek is swabbed for saliva. This will ensure a broad gene pool is maintained, but also that no Affected puppies will be produced. Then we can choose to breed Carriers only to Clear dogs. Instead, it is important to DNA test, so that we know if dogs are Carriers. Pedigree dogs already have restricted gene pools and we should not restrict those further by ruling out so many dogs. It would be a bad idea to stop breeding from Carriers, because it would limit the gene pool greatly. Should we avoid Carriers too? Should they be eliminated from the gene pool? Then there will be no Affected puppies in the litter. If a dog is a Carrier for a condition, they should only be bred to a Clear dog. If a Carrier is bred to another Carrier (or to an Affected dog), there will be (statistically) some Affected puppies in the litter. But, genetically, they are a 'carrier' of it. Carrier - The dog does not have that condition, and will not develop it.An Affected dog should never be bred from, because they will (statistically) produce a percentage of Affected puppies, regardless of what dog they are bred with. The dog may not be showing clinical signs of the condition yet, but they will go on to develop it. Affected - The dog has that condition, or will develop it.A Clear dog will not pass on any genes for the condition concerned. Genetically, the dog has no trace of that condition. Clear - The dog does not have that condition, and will not develop it.There are three possible results of DNA tests: Whilst DNA tests cover a range of conditions, once you know how to think about one result - you know how to think about them all.īefore we get into the separate conditions, let's look at the possible results and what they mean.
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