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[RC] reasons for tying up - sherman



Sorry for sending this twice, I'm trying to get it to "wrap".

Kathy?
?
I had two horses with selenium deficiencies. The first presented as
occasional cramping late into a ride, the second was a full blown tying up
episode. In both cases, having the selenium checked and then supplementing
was the first step to preventing another episode, along with regular
exercise, little or no grain, and long warm-ups. The selenium dosage for the
first 2 months was at least 3 grams daily! Not just the 1 gram suggested
daily dosage. The reason is to get the levels built up in the system. I was
told by vets, Heide Smith and Susan Garlinghouse and my own vet, that just
supplementing with the label recommended dosage would not increase the blood
level sufficiently. Either a shot was needed, then supplementing, or the 3-4
grams daily. I believe Susan Garlinghouse wrote that she supplements all her
working horses with a few grams daily, even after their levels are
sufficient. Many people are afraid to give more than the recommended amounts
because it can be toxic, but unless your pasture or hay has high levels it
is difficult to reach toxic levels with supplementing.
?
BTW, 19 yr old Shadow, who?d had a sever tie-up last June, completed a 50
about 18 weeks later. She missed Tevis because it was too close, and will be
doing her first 50 this year next weekend. 
?
Kathy
?
Quote for the site http://www.cvm.umn.edu/umec/lab/PSSM.html
?
?
?Most racing Quarter Horses, Thoroughbreds, Standardbreds and Arabians with
tying-up, suffer from a separate disease from PSSM called recurrent
exertional rhabdomyolysis (see RER information). In these breeds of horses,
the accumulation of abnormal polysaccharide, the hallmark of PSSM, is rarely
if ever present.?
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