Body Condition Score

A professor at Texas A&M University published, in 1983, the Henneke horse body condition score, named after him. He wanted to use a simple system for horse owners to score the body condition of their horses. As a result, it has become popular and used widely.

The range is 1 to 9, with a 5 being ideal. However, most horse owners like some fat on the bones. Most horses I see in the US are at least a 6 and often a 7 or 8. This overweight condition is from the overfeeding of horses and a reduced workload. 1) more owners have their horses for pleasure and feel that feeding them enhances their connection. In short, they believe that food equals love. In addition, the marketing of feed for horses has become the only mentor to teach horse owners how to feed. The plan here is to sell more food. Coupling the marketing with the perception owners have for the “look” of their horses, the BCS only climbs. 2) Horses are no longer needed for pulling people and supplies to and from town. Their use for war ended about 1915—their use for field work replaced by tractors in the 1950s. Little work plus more food creates more body fat.

On the other side are the overworked and underfed horses. Here the scores drop below 5. Whether it is intentional or not, starvation leads to the absorption of body fat for use as fuel. Let’s look at some of the causes.

The intentional withholding of food has caused starvation. An example includes when a boarder pays for the grain and hay and assumes the farm owner is feeding it. Instead, the farm owner feeds it to their horses. I have seen this happen to an unsuspecting new horse owner.

Starvation occurs when a horse owner loses interest in their horses. It is like they have parked the horse in the garage. Out of sight, out of mind. I have seen several cases of this as well. Often the daughter who cried for the horse is the one who is now paying attention to the boys, and the parents don’t realize the horse needs food. Sometimes a family has job and money problems and can no longer afford to pay. They are too embarrassed to ask for help. In one case I was involved in, at the courthouse, the horse owner was defending her actions and believed that there was no one else capable of caring for her horses. This latter group is called hoarders by psychologists.

Another cause of starvation is when the owner feeds a lot of grain, but the horse continues to lose fat and is called a “hard keeper.” The cause of this is explained further in the nutrition course and topics. In a nutshell, the grain and grain byproducts in some horses cause a lot of inflammation in the intestinal tract. This inflammation consumes a lot of energy and prevents the absorption of glucose, fat and amino acids due to the thickening and leaking of the gut wall. The result is starvation amid plenty. The solution is to remove all food other than pasture and hay.

Diseases other than gut inflammation can also cause the loss of body fat. The most common “disease” is very old age, reducing the horse’s ability to continue to create fuel and transport it. Lost cheek teeth are also a cause where the horse can not get the food in front of him into his stomach because chewing is compromised, and a swallowable bolus of food can no longer be made. But, again, good management can help prevent this and overcome it. Other diseases include organ disease (heart, liver, kidney), lung disease (pneumonia, COPD) and cancer.

Weather is a natural cause of fat loss in winter and increased BCS in the summer. All horses need to go through the natural ebb and flow to maintain their health. Losing body fat in winter is normal and helps improve the horse’s health at the cell level. It is so important to understand but commonly neglected. Most horse owners focus on maintaining the BCS during winter by increasing the availability of raw materials (grain, hay) for fuel production. Please see the topic on hormesis to fully understand this concept.

There are many reasons for a horse’s BCS score. The important point is to understand that this should fluctuate throughout the year. Aiming for one and keeping it there throughout the change of seasons isn’t natural and should be avoided. An athletic horse has a BCS of 4 to 5 in winter and 5 in summer. An average horse has a BCS of 4 to 5 in winter and 5 to 6 in summer.

If severe winter weather causes the BCS to go below a 5, don’t wait until they are a 4 to act. Instead, add more food to avoid the horses passing through a 4 and onto a 3. On the flip side, if the horse is a 6 and summer is just starting, you will need to limit their access to the fat-creating summer pasture.

Just remember these points:

  • Feeding horses is constantly changing throughout the year. It also needs individual adjustment. Some get fat on air, and some don’t.
  • Fat is a sign of inflammation. So keeping body fat year-round will eventually harm your horse.
  • Increasing fat means that insulin is high. Your horse cannot lose fat when there is insulin, and insulin is always around when there is glucose (starch).
  • It is OK for a horse to become thin. Think this – a horse losing body fat is gaining health.

⬇︎ Click or tap on any image to fully open. Swipe or click the arrow to move through the gallery. ⬇︎

BCS 1 ⬇︎


BCS 2 ⬇︎


BCS 3 ⬇︎


BCS 4 ⬇︎


BCS 5 ⬇︎


BCS 6 ⬇︎


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BCS 8 ⬇︎


BCS 9 ⬇︎


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