Equine Mobile Veterinary Services, David Hayes, DVM

12/02/2025

THE COLD WEATHER IS UPON US! ❄️

Are you familiar with the many adaptations that help your horse stay warm during the cold winter months?

🌾 Hindgut digestion of hay produces the most heat, acting as a small furnace inside of the horse. This is why free choice; good quality hay is so important in the winter.

💪 Horses have a huge muscle mass and muscle activity produces heat. This includes running and playing and even shivering if their body temperature starts to drop. It is important to remember that these activities also will result in a bigger caloric demand so free choice hay and in some cases, grain, is often needed.

🧥 To blanket or not to blanket is a constant debate but either way, as it starts to get cold your horse will grow a thicker coat. If you decide to leave your horse unblanketed you may notice that they look “fluffy”. This is due to a phenomenon called piloerection where the hair stands up to better trap air within. Two layers of the coat also help with warmth. The inner layer is softer and has air pockets to create an insulating layer. The outer layer is coarse and has oils that keep moisture from penetrating the insulating layer and keep the horse warm.

⚖️ Wild horses go into the winter heavier than ideal, and the fat serves as an extra layer of insulation. However, if a horse is going to be kept heavily blanketed and in a barn during the cold weather months this is unnecessary and can lead to obesity related issues.

🦵Their distal limbs (below the knees and hocks) are made of mostly bones and tendons, tissues that are resistant to the cold temperatures.

🦶The hooves have an alternative route of blood circulation through larger vessels that can be used in low temperatures. This is why horses can stand in snow without detrimental effects.

👃A horse’s nose has a robust blood supply and is rounded so that it is less susceptible to frostbite than a human’s nose.
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Courtesy of the AAEP Horse Owner Education Committee

11/21/2025

This is a great article!

11/20/2025

The Equine Disease Communication Center is monitoring an outbreak of EHM that originated at the Women’s Professional Rodeo Association (WPRA) World Finals and Elite Barrel Race event Nov 5-9. To date, officially confirmed cases have been reported in the following states-

10/21/2025

09/08/2025

As we approach the start of fall and the temperatures start to drop, here is some important information to know regarding fall laminitis.

Fall laminitis refers to cases of laminitis or founder that occur in the autumnal months. Although laminitis can happen in any season, anecdotally there seems to be an uptick in the number of cases in the fall.

Why could this be?

• As the days get shorter and colder, grasses have been shown to respond to this stress with higher sugar concentrations. Diets with higher simple sugar concentrations may increase the risk of laminitis.

• Decreases in exercise may cause increases in body condition. Fat or obese horses are at risk of developing laminitis.

• Horses naturally have increased levels of certain hormones in the fall. If you have a horse with PPID (previously referred to as equine Cushing’s), the increase in their cortisol levels could put them at risk for laminitis.

If you have questions concerning fall laminitis or are concerned that your equine companion may be at an increased risk, contact your equine veterinarian so that they can properly evaluate your unique situation.

Thank you to the Horse Owner Education Committee for providing this information.

08/22/2025

Dr Temple Grandin is one of the best known animal scientists in the world. She grew up in America, and she is autistic, which means her brain works a little differently to most people’s. She often says she “thinks in pictures.” This helps her notice tiny details about animals that others might miss.

Most of her career has been spent improving how cattle are handled on farms, making systems calmer and safer. (Which is why many farms have safe handing pens for cattle on farms today)But her ideas are just as useful when we think about horses.

Temple reminds us that animals don’t see the world the same way humans do. A shiny puddle, a flapping jacket, or a garden chair in the wrong place might look like danger to a horse. Horses are prey animals, always on the lookout for threats. What seems silly to us can feel very real to them.

As she explains: “Horses have to see the same object from all angles. They don’t automatically transfer learning from one side of their brain to the other.” In other words, a horse that walks calmly past a wheelbarrow on the left rein may still shy at it on the right.

For coaches and riders, this matters. If a horse spooks or refuses, it isn’t “naughty”, it is reacting in the only way it knows. Our job is to slow down, let the horse look, and give it time to learn.

Temple also talks about how animals respond to pressure. A gentle aid, released at the right moment, helps the horse to understand. But rough hands, loud voices, or constant pushing only build fear. As coaches, that means showing riders how to be clear but kind, guiding, not forcing.

And this links horse welfare with rider welfare. A calm horse gives the rider confidence. A frightened horse makes the rider nervous. By putting the horse’s feelings first, we create safer, happier lessons for both.

Temple Grandin may have made her name with cattle, but her lessons about patience, clear signals for animals are pure gold for anyone who works with horses. When we see the world through the horse’s eyes, we become better kinder horsemen.

07/28/2025

While it’s a common equine emergency, esophageal obstruction (“choke”) can look alarming, especially if you've never seen it before. Unlike in human medicine, where choking refers to a tracheal (or windpipe) obstruction, choke in horses refers to an obstruction of the esophagus (the muscular tube that carries food from the mouth to the stomach).

Most commonly, choking occurs when horses eat concentrated feed too quickly without chewing appropriately, which results in a firm bolus lodged in the animal's esophagus. However, esophageal obstruction can also occur with hay or straw, hard treats, carrots, or nonfood objects. Poor dentition, which leads to inadequate chewing, is also a frequent cause of choke.

While common, choke can have serious consequences. So, be sure to call your veterinarian as soon as you notice signs of choke. A bad choke is fairly obvious to both veterinarians and horse owners, but a mild choke could be confused with an upper respiratory tract infection or colic.