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It is common, but that horse cannot have any offspring registered AQHA next year. This isn't always the case, BUT sometimes a horse breeder can be very reputable and ethical, yet they still are major BYB's of dogs.

quote:

BlackRiverDanes
Nuclear Member Gold

Posted Fri January 13 2006 02:10 PM
It is common, but that horse cannot have any offspring registered AQHA next year.

First I want to say "NEIGH" to HYPP. I have been to AQHA conventions fighting the breeding of this disease.
Anyway I wanted to point out that as of 2007 AQHA is only denying registration of horses testing HH (homozygous), NH horse will still be able to bred and registered. We are working on that but its a long hard process. Many of the people that breed these horses are very high up in the horse world and are fighting tooth and nail to get the 2007 ruling revoked! I don't know if anyone is intrested but:
NN to NN is 100% NN
NN to NH is 50/50 NN/NH
NH to NH is 25% NN, 50% NH, and 25% HH
HH bred to anything is a guarentee of the H gene.
For more info read this site: www.bringinglighttohypp.org
it also list many other disease that our horses face but I must say HYPP is the only one being purposely bred for and its the only one that is dominate, meaning its is expressed by the carrier of the gene. The others like OLWS and HERDA are reccessive and are NOT expressed by the carrier. It takes 2 copies to be expressed and there is only a 25% of that, scientifically speaking. The site explains it much better.
Hug A Dobe