Our last day of testing for the year will be 22 December. The lab will start up again on 2 January 2024.
You can still place new orders and send us samples while we are on break, ready for when we reopen.
Hyperkalaemic periodic paralysis (HYPP)
Summary
HYPP is one of the 5 tests in the 5-panel. The 5-panel is relevant to Quarter Horses, Paints, Appaloosas, Quarter Ponies and any other breeds with some Quarter Horse bloodlines. HYPP is only found in the descendants of Impressive, an American Quarter Horse born in 1969. Impressive was a halter horse World Champion that produced a large number of World Champion offspring.
The most common signs of HYPP are muscle twitching and spasm occurring intermittently and starting at 2-3 years of age. Severe cases can have muscle weakness, with the worst instances causing collapse or death. HYPP carriers are also reported to have a marked increase in musculature.
The HYPP test is only relevant to horses with Impressive in their pedigree. Just remember if youâ??re checking your horseâ??s pedigree to go back far enough to reach 1969 or earlier. HYPP is extremely rare here in Australia.
Gene or region and technical reference
Gene: SCN4A (causative). Reference: Rudolph et al. (1992)
Reported alleles
n. Test developed using manufactured DNA, animal controls.
HYPP. Test developed using manufactured DNA, animal cases.
Panels: groups of tests that are often ordered together
This test is in the QH health panel.
This test is in the QH health & colour panel.
