DNA testing for PRA
It has been shown that the most common variety of PRA in cat (among them the Abyssinian, the Somali and the big group of Siamese related breeds) is related to a mutation on the rdAc-gene and a DNA-test is available.
Blood or mucosal cells from the oral cavity ("swab test") could be used for the test. More information on test procedures, payment and prices etc are to be found at the websites of the laboratories performing the tests, for instance:
UC Davis VGL (University of California, Davis, Veterinary Genetics Laboratory, US)
If you have any questions, please don't hesitate to contact the contact persons for the health programme!