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Simple hydration tests for your horse

How do you know if your horse is maintaining suitable hydration this summer? There are some simple tests you can perform at home to check the hydration status of your horse.

Capillary refill time

  1. Using both hands, part the horses lips to expose the upper gum.
  2. Press gently on the gum just above the front teeth (incisors) for 3 seconds using your thumb or index finger. This will cause the blood to rush away from this area, blanching the gum.
  3. Remove your finger. Watch and count how long it takes for the gum to return to its natural pink colour. Colour should return to the blanched area within 2 seconds, if it takes longer your horse may be dehydrated or have a circulatory problem.

Skin turgor test

  1. Gently pinch and elevate the skin on the horses neck, in front of the shoulders using your thumb and forefinger.
  2. Release the skin and watch to see if the skin snaps quickly (1 – 2 seconds) back into place. If the skin is slow to return and stays sticking up your horse may be dehydrated.

Important note

It is important to take both capillary refill and skin turgor measurements regularly so you get to know what is normal for your horse. The easiest way to remember to perform these tests is to include them in your regular grooming routine.

If you are concerned about your horses’ hydration status, seek veterinary assistance.

Helpful hint - Older horses may have less elastic skin that returns slowly to its normal position even if the horse is well hydrated.

Capillary refill and skin turgor tests - video

Below is a short video, demonstrating both the capillary refill and skin turgor measurements. This horse displays a normal result to both hydration tests. 

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