A few years ago, AMS caused a classic 'storm in a teacup' in the World of working Cocker Spaniels. There were just a few cases, and the association of particular genes to the condition was not sufficiently conclusive, in our opinion.

We acquired Hari, with the intention of using him at Stud, both for ourselves and others. He has DNA tested as a positive AMS gene carrier, although he will never develop the condition himself.

Statistically, up to 50% of Hari's progeny could become carriers, also. Further, crossing him with a bitch carrier would risk a proportion of those offspring actually developing the condition (although, it seems that there is little evidence of what that risk really is).