HYPP in APHA?

Question

I have a horse registered in APHA and was wondering, does the association tell you when you're horse is a descendant of Impressive? What are the qualities of one of these horses? I'm a little worried

Answer 1

I just won a Best Answer about HYPP and if you do a pedigree search either at APHA or AQHA or All Breeds Pedigree, you SHOULD be able to find out if your horse has Impressive in it's pedigree.

History:

Impressive -was born an Appendix American Quarter Horse, however earned his full AQHA registration in 1971. He was the 1974 World Champion Open Aged halter stallion, the first such World Champion in his breed, despite carrying only 48 halter points in total. He is famous for his highly successful progeny, having sired 2,250 foals. Nearly thirty of his offspring went on to be World Champions themselves.

However, the Impressive bloodline tends to have HYPP {Hyperkalemic Periodic Paralysis}. Impressive was a quarter horse sire that passed on the fatal HYPP gene to some of his foals. He was a champion halter horse but he should not have been bred. This caused the deaths of many young and good horses. Get your horse tested. If he is N/N, he doesn't have the gene. If he is H/N he is a carrier..This might only be possible in females though. Carriers do not express the symptoms but they should not be bred. If he is H/H..see if you can do anything to prevent this disease.http://www.vgl.ucdavis.edu/services/hypp...

is a great website with tons of info on this genetic disorder!

http://en.wikipedia.org/wiki/Hyperkalemi...

Here's what Bill Brewer, AQHA President had to say about it.http://www.aqha.com/association/registra...

I currently own 3 mares who are Impressive bred but all 3 are N/N.

Answer 2

Just a quick comment to one of your posters who said you probably shouldn't have to worry about hypp in Paints since its only been a while since they have allowed AQHA to APHA breeding.

Wrong.  That person obviously doesn't realize that historically all a Paint is is a Quarter horse or Thoroughbred with excessive white.  There are many solid colored Paints, but my point is - Paints ARE Quarter horses genetically.  And you can bet that Impressive bred horses are in the Paint family tree!  

Having said all that, I have never met a hypp Paint horse.  They do exist, especially in the halter circles, but in a lesser degree than you'll find in AQHA.  

APHA does not inform you if your horse is Hypp.  You will have to research it yourself, which often isn't difficult if you ask the owner of the dam and sire the question.  Because hypp is such a big issue most owners of sire's will have carefully checked out whether their horse has it, and they will often advertise non-hypp in their ads.  If the owner of sire and dam cannot help you, then just open up their pedigree (if you are an APHA member you can do this on-line, there is a minimum fee of about $10 for a year's use of their on-line services) and look for the word Impressive.  If you see it, then start doing your homework.  You can google search stallions and often find alot of information on ranch sites if the stallion is still alive.  Others have mentioned Allbreedpedigree, which also is helpful.

Horses that are N/H for hypp may or may not be symptomatic.  Some horses go through their entire lives without health problems, some develop the problems when they are under stress such as showing, hauling, in foal, etc. You certainly cannot always tell if a horse has hypp by looking at them.  You can get DNA testing done for this - I believe UC-Davis tests, so if you are concerned about a specific horse I would look at their site for information.

Answer 3

I don't know but try the sites that have been given. I have a horse out of Impressive and he is very healthy now. We have had him about 8 years. I want to say he is 10 years old but i would have to pull out the papers to be exact. Look up HYPP and it should tell you the symptons and wat to look for. Hope I helped

Answer 4

http://www.horses-and-horse-information....

http://www.equisearch.com/horses_care/he...

http://www.users.qwest.net/~mjh/

links with some general information for you.

I'm kinda amazed, after searching around on Google, that the APHA hasn't issued a statement for breeders and owners of a broodmare with distant (pedigree) Impressive bloodlines, expressing what you need to do if you have a foal, (with a Impressive background), in order to register that foal.

Answer 5

Here is a site that can help. Put your horses name in & see what come up. Hope thins helps!

http://www.allbreedpedigree.com/

Answer 6

No, the association doesn't tell you.  But if your horse is registered, than you can look at your horses papers and see if there is any impressive bloodlines on the papers.  If you don't see any but are still curiouse you can go to the allbreedpedigrees website and do a search on the horses name that appear to the far right of the paper and see where those horses came from to determine if Impressive is far back.  For being an APHA I hardly doubt it since the rule for being able to cross register with AQHA was just recent, but doesn't ever hurt.  Most horses don't show any symptoms if they are HYPP H/H or N/H until they have an attack.  The best way to determine (if you think your horse is a desendant of Impressive) is to have your horse tested.  I would first do the lineage check, and if you don't see any, than I wouldn't worry.

Answer 7

An extended predigree should answer your question regarding Impressive.  Some breeds require that the sire and dam be DNA checked and if that is the case, you can get that information.  If you have ever seen HYPP N/N (listed after a horses name) that means that both the sire and dam were negative for HYPP.  The best way to describe a horse that is having an HYPP reaction is to compare to a person having an epilectic seizure.  If you've ever seen it, you won't forget it!