Re: dark urine

[CMKSAGEHIL <CMKSAGEHIL@aol.com>]

In a message dated 98-05-07 13:21:00 EDT, Cyberpony@aol.com writes:

<< > so what's going on to cause
 >  > the dark urine?
 
 Has anyone else ever noticed dark urine right and the end of normal colored
 unination?  What causes that in a healthy non-stressed horse? . . . .
Sediment
 at the bottom of the tank ? 
  >>

One can certainly have dark urine due to dehydration and subsequent
concentration of urine.  Hence the dark color is still a significant
observation, even if there is no tie-up going on.  However, there IS a subtle
color difference between concentrated urine and urine containing myoglobin
(the muscle "ingredient" that one sees being eliminated in the urine in a tie-
up) that one learns to recognize with time and experience.  If in doubt, still
treat dark urine as a serious problem and run bloodwork to make sure.

Heidi