Preventing ‘tying-up’ in horses in the Middle East 

Exertional rhabdomyolysis (ER), also known as “tying-up,” is a condition that affects horses during or after exercise. It is a painful condition characterized by the breakdown of skeletal muscle fibres. It commonly affects racehorses and is more common fillies. Highly strung horses tend to be more predisposed to developing tying up.

This condition can be frustrating for horse owners and trainers, as it can lead to a range of signs and symptoms, varying in severity from mild discomfort to extensive muscle and kidney damage. Understanding the underlying causes of ER is crucial for implementing management strategies to reduce the likelihood of recurrence.

Signs and Symptoms of Tying up/ Exertional Rhabdomyolysis (ER) in horses

– Firm and painful muscles
– Stiff or awkward gait
– Reluctance to move
– Sweating
– Trembling & Shaking
– Increased heart and respiratory rate
– Reduced urine output (may be red or brown in severe cases)
– Recumbency (lying down, in very severe cases)
– Poor performance (mild or recurrent cases)

Causes of Tying up/ Exertional Rhabdomyolysis:

There are several potential causes of ER, including:
– High carbohydrate diet, especially when not matched to exercise levels.
– Vitamin deficiency, especially antioxidants.
– Electrolyte deficiency, often occurring after intense exercise and sweating.
– Excessive exercise relative to the horse’s fitness level.
– Dehydration.
– Heat exhaustion, especially in the hotter climates of the Middle East

Management and Prevention of Tying up in Horses:

To manage and prevent ER, consider the following measures:
– Adjust the horse’s diet according to its level of work, reducing starch levels (carbohydrates) when appropriate.
– Replace high-starch feed with alternatives like linseed oil or Cod Liver Oil.
– Ensure horse is adequately hydrated & provide electrolytes daily or as needed, such as Equi-Lyte G, which contains electrolytes, vitamin E, and vitamin C (antioxidants)
– Consider feeding a daily supplement rich in antioxidants & vitamins.
– Selenium supplementation can be beneficial (e.g., Muscle Max, V.S.L.).
– Make any change to exercise routines gradually and maintain consistent daily work.
– Use recovery-supporting products such as Refuel Gel.