Explanation of Health Tests...




Masterkarn does testing with a conscious mind without destroying the breed...Check out our hip and elbow scores, no heart or eye problems. We only have carriers or clear vWD, no affected Vwd GP's or Dobermanns in our breeding program.
vWD - VetGen
There are three possible test results: Clear, Carrier, and Affected. Below is a description of what each result means to you as a breeder.
CLEAR This finding indicates that the gene is not present in your dog. Therefore, when used for breeding, a Clear dog will not pass on the disease gene.
CARRIER This finding indicates that one copy of the disease gene is present in your dog, but that it will not exhibit disease symptoms. Carriers will not have medical problems as a result. Dogs with Carrier status can be enjoyed without the fear of developing medical problems but will pass on the disease gene 50% of the time.
AFFECTED This finding indicates that two copies of the disease gene are present in the dog. These dogs always have a potential to bleed given the right circumstance and will always pass on the disease gene (mutation) to their progeny.
Breeding Pair Combinations
CLEAR MALE CARRIER MALE AFFECTED MALE
CLEAR FEMALE 100% Clear 50/50 Carrier Clear 100% Carrier
CARRIER FEMALE 50/50 Carrier Clear 25/50/25 Clr./Carr./Affect. 50/50 Carrier/Affected
AFFECTED FEMALE 100% Carrier 50/50 Carrier/Affected 100% Affected
Ideal Breeding Pair. Clear to Clear. Puppies will not have the disease gene (neither as Carrier nor as Affected).
Breeding Is Safe.
Carrier to Clear-No Affected puppies will be produced. However, some or all puppies will be Carriers. Accordingly, it is recommended that Carrier dogs which are desirable for breeding be bred with Clear dogs in the future, which will produce 50% carrier and 50% clear animals, to further reduce the disease gene frequency. These offspring should be tested by VetGen's test for this defective gene, and if possible, only the clear animals in this generation should be used.
Carrier to Carrier -High Risk Breeding. Some puppies are likely to be Carriers, some puppies are likely to be Affected. It is possible that there will be some clear puppies when breeding "Carrier to Carrier", in general, neither this type of breeding pair are recommended for breeding. Should this breeding be done any clear are the only ones to be kept for further breeding.
Carrier to Affected-Breeding Not Recommended at all.