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Polycystic Kidney Disease (PKD) is a well documented abnormality in domestic cats. Cystic kidneys can sporadically occur in any population of cats. PKD is not a new disease and has been reported in the literature for over 30 years. The heritable form of PKD1 may not have initially occurred in Persians as a new mutation, but perhaps in random bred cats. Unfortunately, PKD1 does not have a strong clinical presentation. The presentation of PKD1 is similar to one of the most common causes of death for any cat, renal failure. Thus, PKD1 has gone unnoticed for many years and has spread throughout the Persian breed. Any breed that has used Persians in their foundation or propagation should have concerns for PKD1.
In Persians, the condition has been shown to be inherited as a single autosomal dominant gene. It is estimated over 37% of Persians have PKD1, a breed that accounts for nearly 80% of the cat fancy. Many lines and catteries have been able to greatly reduce this frequency by using ultrasound screening methods and improved breeding practices
I am a pkd free breeder, and all kittens sold for breeding will be pkd dna tested, though kittens are born to pkd free parents it is nice to have your own paperwork for the kitten.
Kittens will be tested at 9 weeks, so paper work will be ready with kitten to go to new home at 13 weeks.