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 If I recall correctly, foamy sweat does not 
necessarily indicate an unconditioned horse.  It just means that the horse 
hasn't been worked much recently.  After a period of regular work -- 
long before the horse is at all fit -- the foam will have been flushed from the 
sweat glands and the sweat will be clear.  Then, there may or may not 
be less sweat, but it will be less obvious.  And, clear sweat doesn't 
necessarily mean that the horse has less need for electrolytes. 
  
At least for some horses, all it takes is a short 
period of no work (like to recover from a stone bruise) for the sweat to be 
foamy again. 
  
Cindy 
  
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