Tying up (Recurrent Exertional Rhabdomyolysis - RER)

What is RER?

Tying Up is a muscle disease that causes painful muscle contractions. Symptoms include severe muscle pain and distress, apparent colic, excessive sweating, elevated heart and respiration rates, a stiff gait, muscle tremors and a reluctance to move. Milder forms may make the horse simply appear stiff, lazy or slightly lame.

There are various forms of tying up, with the two most common being Recurrent Exertional Rhabdonmyolysis (RER) and Polysaccharide Storage Myopathy (PSSM). The RER form most commonly affects thoroughbreds. Standardbreds can be affected by both forms of tying up.

The form of tying up a horse is affected by determines how it needs to be managed nutritionally.

 

Pryde's EasiFeed Products That Can Help

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When to use this feed

Use EasiResponse when a non-oat, high energy feed is required.

Feed it With

Feed EasiResponse with good quality pasture, hay and/or chaff plus 1/2 to 2 cups per day of Pryde's EasiOil.

When to use this feed

Use EasiPerformance when a non-oat, high energy sweetfeed is required.

Feed it With

Feed EasiPerformance with good quality pasture, hay and/or chaff plus 1/2 to 2 cups per day of Pryde's EasiOil.

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When to use this feed

Use ReBuild to top up energy intake and add vitamin E, organic selenium, B1 and chromium to the diet.

Feed it With

ReBuild is not a complete feed. It should be fed where additional energy is needed together with EasiResponse or EasiPerformance and forage.

 

Other Tips

Reduce the amount of these feeds fed on days off and replace them in the diet with an equal weight of hay and chaff.

Always make a salt block available.

Try to keep routines consistent and feed horses that are prone to RER first.

Implement a suitable work regime and allow RER prone horses to gradually build up to the required fitness level. Avoid over-exertion. If possible, avoid prolonged periods of stall confinement.

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