What is the Z factor in Dobermans?

The Z factor means that the doberman carries the gene mutation that forms albinism. It is notated by the letter Z in their registration number. Z factor dobies should not be bred together because there is a chance of producing albino pups. There are many agonizing problems that come along with albinism including skin cancer and premature blindness which will cause the dog to become aggressive towards all people and animals around it. Any reputable breeder would never breed to form an albino and would certainly not charge more for an albino than a healthy pup that is of a recognized color