I've been waiting for my friend Linda (ChacoL) to respond to this, but I
think she must be out of town. Here is what I recall of her experience.
She had a horse a few years ago who had dark urine with no indications of
tying up. I think he was ultimately diagnosed as having kidney stones that
were causing blood in the urine.
Hope I am recalling correctly and that Linda will expand upon this when she
returns.
Suzanne Mounts
At 09:32 AM 12/5/97 -500, you wrote:
>The question I am asking here is just how much of an indicator is
>dark urine to "tying up". I have witnessed coffee colored urine,
>not dark tea, not just concentrated urine, expelled from horses that
>showed NO signs of tying up. Nor did they when they continued on the
>ride. My horse showed no other external signs other than an up and
>down pulse before he dropped some coffee on the ground. I collected
>it, had blood drawn three days later, sent it to the labs and the
>results showed metabolic mayhem, but not classic "tying up". So, can
>dark urine indicate anything other than what we call "tying up"?
>In the same sense, a horse that has a muscle cramp that causes
>lameness is not necessarily "tying up" (oh, have I become an expert
>here with horses that like to play "stump the vet!) Of you experts
>out there, is a blood test the only way to find out if a horse has
>truly tied up and is it worth doing?
>John and Sue Greenall
>mailto:greenall@vermontel.com
>
>