Thumps In Horses

What are the symptoms?
His whole body is being racked with mild rhythmic spasms. There may be also signs of stiffness and depression.

Where does it come from?
It's similar to human hiccups, but it is usually caused by electrolyte imbalance and significant fluid loss after an exhaustive workout. Low blood calcium levels are often at fault, but it is also a good idea to check all electrolyte levels, especially magnesium, potassium, sodium, and chlorine.

Other causes include:
Heavy lactation
Diarrhea
Overeating
Transport stress
Blister beetle toxicosis
Oxalate toxicity

How is it diagnosed?
Look for a rhythmic contraction of your horse's abdomen, up to 40-50 times per minute. Typically, each contraction occurs at the same time the heart beats. It may occur on either side of the horse.

How is it treated?
Mild Exhaustion: If the horse is still interested in food and water, cooling out the horse and allowing proper access to water and food will correct the problem. Calcium rich legumes are a good choice if the horses digestive system is used to them.

Severe Exhaustion and Other Causes: If the horse has severe electrolyte abnormalities and dehydration he will be depressed and uninterested in food and water. His temperature may be elevated. This is a serious, life threatening condition. Call your vet. She will be able to correct fluid and electrolyte imbalances quickly.

How is it prevented?
Better conditioning is the first step to prevention. Consider electrolyte supplementation. Provide adequate water, take precautions against equine heat stress and maintain proper nutrition.

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