> ZRD is probably not inherited
Just to clarify here;
Zinc deficiency is the
condition.
'ZRD' (zinc reactive/responsive dermatitis) is
symptomatic of the condition(ie: how the condition manifests itself or putting it more simply, the signs and symptoms of the condition)
So as I commented earlier it depends on wether the dog's
condition is diagnosed as Syndrome 1 or Syndrome 2 as to wether the condition is hereditary (of which Syndrome 2
is hereditary!) regardless of which syndrome all dogs will display the symptoms to a greater or lesser degree which = 'ZRD'
(There are other conditions (V.rare) that can be misdiagnosed as Zinc deficiency hence Edinburg pioneering in the past couple of years, new diagnosis methods overtaking the traditional skin biopsy.)
> I read recently that there is a school of thought that a snow nose often seen in Northern breeds could be part of ZRD
Sarah, might you have mis-read Catherine Lewis' post on our Breed club (SHCGB) websites FAQ's ;-) the only time I have heard of Snow-nose and ZRD mentioned in the same breath would be (as in Catherine's post) to warn that pigment loss 'may' be symptomatic of ZRD and not to be written of as just 'Snow-nose' ;-)
HTH?