I am having a PPE done on an unregistered Quarter Horse mare that I'd like to buy. She hasn't been tested for HYPP yet and since she is unregistered we don't know if she's got Impressive lines, so I was going to have the vet do an HYPP test.
Should I also have the vet do a HERDA test, or is it obvious when a horse has HERDA? I don't want to waste money on a test that I don't need. I don't know too much about Quarter Horses or their genetic "idiosyncrasies" - is there anything else I should ask the vet to test for that is QH-related?
EDIT: Whoops, forgot to mention she is 7 years old.
Last edited by jlc102482; Jul. 15, 2010 at 12:00 PM.
Reason: Memory loss! ;)
In testing for HYPP, every horse I've known that had the disease looked extremely muscular, even if they were not in work. The test isn't all that expensive (I think it's only $50) so I think it would be worthwhile.
And I agree with what everyone else has said about HERDA.
If you're planning on breeding this mare, then you should still consider the HERDA test. Since HERDA is a recessive trait, even though she may not be "affected", she may still be a "carrier"; that is something you would want to know prior to breeding her - to make sure the stallion is clear to avoid the chance of producing an affected foal.