Originally Posted by kmdstar
I don't mean to hi-jack, but just have a question, if a horse is N/N does that mean they for sure won't have any HYPP episodes or just that they shouldn't have any?
Won't. It means they do not carry the mutated gene. H/H This status means that a horse carries a double copy of the defective gene and will pass at least one copy of the gene and the disease to 100% of it's offspring. N/HThis status means that the horse carries one normal gene and one HYPP gene and statistically an N/H horse will pass the gene and the disease to 50% of it's offspring when bred to a N/N or non-Impressive bred horse. N/H to N/H cross will statistically result in 25% N/N progeny, 50% N/H progeny, and 25% H/H progeny. N/N This status means that the horse carries two normal genes. It does not have the disease, nor can it be passed on.