Could change in feed cause tying up?

I have a 5 yr. old mare. In December she "tied-up" on me twice. Never before had she had this problem. About a month prior to this I had added Omelene 200 to her feeding program. Do you feel that the sugars in the molasses could ...I have a 5 yr. old mare. In December she "tied-up" on me twice. Never before had she had this problem. About a month prior to this I had added Omelene 200 to her feeding program. Do you feel that the sugars in the molasses could ...

Story originally posted by: Michael Lowder, DVM, MSUniv. of GA School of Veterinary Medicine

Dr. Lowder:
I have a 5 yr. old mare. In December she "tied-up" on me twice. Never before had she had this problem. About a month prior to this I had added Omelene 200 to her feeding program. Do you feel that the sugars in the molasses could have caused this problem? I had her selenium level tested. Her test came back at .156 which I was told by my vet that this level was in the low/normal range. For the future and to eliminate this problem from being a re-occurring event, could you please advise me on the best preventative measures from this day forward in regards to her feeding and supplement program. I am no longer feeding the Omelene. Only whole oats, 1 flake alfalfa at night and all grass hay she can eat. For a supplement I have been using Source. Thank you for your time and help.

C SmithClarkston

C. Smith,

Exertional myopathies are the most common muscle disorder in the horse. You want to decrease the amount of carbohydrate content of the diet and fed a high quality grass hay. In additoin, provide a good vetamin and mineral supplement. In regards to exercise your program needs to be regular. One or two days of being off prior to a stressful exercise seem to precipiate rhabdomyolysis.
Thanks, Dr. Lowder

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