Equine Mobile Veterinary Services, David Hayes, DVM

04/09/2025

No! No! On grass clippings!!!

MIDWEEK MYTHBUSTER! 📢

Many people think that horses can safely eat grass clippings (grass is grass, right?) but that is a pretty common misconception and grass clippings actually pose a number of dangers to our equine friends.

While grass is meant to be slowly picked, ripped and chewed by the horse, grass clippings can quickly clump and cause choke if the animal ingests too many too fast. Grass clippings are also prone to fermentation which can cause colic, stomach and intestinal impactions, founder and laminitis.

Take-home message: Keep your horse away from grass clippings and in general never feed horses any food without the owner’s permission.

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

04/07/2025

Much needed information! ❤️

04/04/2025

FENCE AND GATE SAFETY CHECK TIME!!!!

Pasture Safety Check
This image is a stark reminder of why regular pasture checks are crucial! A bolt like this can cause serious injuries to your horses.
When inspecting your fencing, keep an eye out for:
• Loose or protruding nails, screws, or bolts
• Broken or splintered wood
• Sharp edges or exposed metal hardware
• Gaps where a hoof or leg could get caught
Horses are curious, and accidents happen fast—take a few minutes to walk your pastures and ensure they’re safe!

03/12/2025

INTERESTING FOR SURE!

Remember when your parents used to tell you to wait 30 minutes after eating before going for a swim? Unlike us, horses can actually benefit from eating forage before they exercise, as it may help reduce the risk of gastric ulcers.

While a variety of things can contribute to the development of stomach ulcers (medications, diet, stress, etc.), one train of thought is that these areas of irritation result as a consequence of the acid of the stomach splashing against unprotected parts of the stomach lining. When a horse eats forage, the hay can help absorb some of that acid and thus reduce the risk of ulcer formation.

It is important to note that a forage meal (one comprised of long stem hay) provides the most benefit, while eating large volumes of concentrate feeds (such as oats, corn, or other cereal grains) can actually increase the amount of acid within the stomach.
As always, please be sure to consult with your vet regarding further diagnostics and treatments if you have concerns that your horse may have gastric ulcers.

Brought to you by the AAEP Horse Owner Education Committee.

03/11/2025

Springtime = Abscess time!

As spring approaches, and unfortunately so does "mud season", sooner or later nearly all horse owners will deal with a hoof abscess. But what does "hoof abscess" actually mean? This diagram shows a simplified view of the equine hoof to help you visualize the structures involved in this process.

Although most commonly seen during the wet winter and spring months, hoof abscesses can plague horses year-round and usually occur when debris and bacteria enter the foot through hoof cracks and wounds, even horseshoeing holes. The bacteria then get trapped between the sensitive laminae (the tissue layer that bonds the hoof capsule to the coffin bone) and the hoof wall or sole and create pus; the pus builds up over the course of time and puts pressure behind the hoof wall or sole, until it causes the sudden onset of acute lameness when the pain finally becomes too great.

Hoof abscesses can mimic other more serious diseases or injuries, so involving your veterinarian early on in the diagnosis and prompt treatment of this condition is always a good idea. Some abscesses will be uncomplicated and rupture on their own like a large pimple at the coronary band or heel bulbs; other abscesses, however, could require radiographs and will need to be surgically drained.

As always, consult your horse doctor for more information and advice!

03/04/2025

While we are all looking forward to warm spring days and lush green pasture, the transition from winter hay to spring grass should be planned carefully to mitigate any health risks to your equine. In other words — just because your equine friend is not obese or suffering from a nutritionally related disease, doesn’t mean you should just forget about hay entirely and let your horse eat their fill of spring grass.

Feeding high-quality hay is a good way to satisfy a horse’s urge to chew when they can’t graze and provide essential nutrients at the same time. A mature horse will eat 2-2.5% of its body weight per day; roughage should contribute to at least half of this percentage, but most agree forage should be a minimum of 75% of the horse's diet. Please remember that not all horses are made equal, so a horse's total nutritive requirements will ultimately depend on the individual's age, stage of development, metabolism and workload.

Take-home message: Before making any changes to your equine companion's diet this spring, consult your veterinarian to determine their current weight/body condition score and to formulate a balanced and nutritious ration that meets your horse’s specific nutritional needs!

02/25/2025

Almost Spring De-Worming time! A quarterly schedule works great!

With spring only a few weeks away (🙌), it’s not too early to start thinking about a deworming plan for your equine companions.

If deworming is something you’ve been doing the same way for as long as you can remember, this year we encourage you to break tradition and work with your veterinarian instead. Thanks to tools like the f***l egg count, your horse doctor can help you devise a treatment tailored to the needs of your equine friend plus monitor the efficacy of the dewormer used last.

And before you dismiss this notion because you’ve been “doing it for years,” you should know that the old-school approach to deworming is quickly becoming outdated—not only a waste of money but it also builds drug resistance in the parasitic fauna of equines, which means we are running out of drugs that can effectively help us control parasite infections.

As always, consult your equine veterinarian to learn more and for questions specific to your animals!

01/14/2025

DO YOU KNOW HOW TO SPOT COLIC IN HORSES?

Colic indicates a painful problem in the horse's abdomen (belly), which can be caused by a number of different conditions. Less than 10% of all colic cases are severe enough to require surgery or cause the death of the horse; nevertheless, every case of colic should be taken seriously because it can be difficult to tell the mild ones from the potentially serious ones in the early stages.

Horses show signs of abdominal pain in a wide variety of ways, and usually a horse shows only a few of the signs during an episode of colic. The rule of thumb is — the more obvious the signs of pain, the more serious the problem.

If you suspect the horse is suffering from colic, we suggest that you:

• Alert your veterinarian immediately

• Remove all hay and grain from the horse's surroundings

• Don't medicate without your veterinarian's approval, as pain medications can mask clinical signs

• Walk the horse around if it's continually rolling or in danger of hurting itself — but do not tire the horse with relentless walking and don't approach the animal if it's not safe

• Keep the horse under close observation until the signs of colic resolve or the veterinarian arrives

The key to increasing the chances of a good outcome is to identify the problem early and get your veterinarian involved from the start.

Please note that this is not an exhaustive list of colic signs. Horses are individuals and may display signs of pain in a variety of ways. Always consult your horse doctor for more information.

01/13/2025

WHAT TO EXPECT WHEN YOU'RE EXPECTING (A FOAL) 🐴

If your mare has made it through 11 months of pregnancy, you're almost there. Labor and delivery, while momentous, are generally uncomplicated — however, being a prepared and informed owner will help you keep your anxiety in check so you can assist the new mother and foal get off to a great start.

Here are some things you can do to prepare for the arrival of the foal:

• Consult with your veterinarian well in advance of the birth. Know how to reach your regular veterinarian after hours and ask about a back-up or referring veterinarian in case your regular horse doctor is not available.

• Clean and disinfect the stall as thoroughly as possible. Provide adequate bedding.

• Wash the mare's udder, v***a and hindquarters with a mild soap and rinse thoroughly.

• Wrap the mare's tail with a clean wrap when you observe the first stage of labor. Be sure that the wrap is not applied too tightly or left on too long, as it can cut off circulation and permanently damage the tail.

• Time each stage of labor, to help you keep accurate track of the mare's progress. Take written notes! When you're worried or anxious, your perception of time can become distorted.

As always, these are general guidelines, and you should contact your veterinarian for more information specific to your situation. Good luck!

01/03/2025

WINTER HORSE FACTS!

FUN FACT FRIDAY!

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

12/30/2024

NUTRITION FACT FOR HORSES!

Although protein is normally listed as a nutrient, horses actually have a requirement for amino acids, the building blocks of protein, rather than for protein itself.

Protein is the least efficient energy source for your horse, so high protein does not automatically equal high energy. Carbohydrates, fats, and fiber are more readily digestible energy sources, so chances are a horse with too much energy is being fed more calories than the animal truly needs.

As always, remember that all horses have different nutritional needs based on age, stage of development, metabolism and workload. Be sure to work with your veterinarian to determine the correct protein and energy requirements for your equine friend based on your horse’s individual situation!
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Courtesy of the AAEP Horse Owner Education Committee

12/06/2024

What is Equine Herpesvirus (EHV)?

You've probably heard it called Rhinopneumonitis, a respiratory tract disease that results in "snotty noses," but EHV is more than that. Depending on the strain, this virus can also cause abortion in broodmares, and equine herpesvirus myeloencephalopathy (EHM) — the often deadly neurologic form of the disease.

Because EHV is endemic in many equine populations, most mature horses have developed some immunity through repeated natural infection. However, they remain a source of infection for other susceptible horses, like weaned foals and yearlings, who usually display symptoms of the respiratory form of the disease in autumn and winter. Performance and show horses are also more vulnerable to the disease, as they commingle with unfamiliar equines in close quarters while under stress from travel and competition.

Proper biosecurity protocols can help reduce EHV outbreaks and other disease transmission. A variety of vaccines are also available for protection against both the respiratory and abortive form of the disease, but there is no equine licensed vaccine at this time that has a label claim for protection against the neurologic form (EHM).

Consult your primary equine veterinarian to learn more about this disease, and work with them to determine the optimal vaccine protocol for your horses.

12/06/2024

DID YOU KNOW?

Strangles was one of the first equine diseases to be described by the early writers of veterinary science (was first reported in 1215) and is one of the most commonly diagnosed contagious diseases of the horse, worldwide. Though strangles is highly contagious and can affect many horses on a farm, particularly young animals, most horses with infection recover without complication.

It is not uncommon for strangles infections to recur on a farm with previous outbreaks of the disease. The bacteria can survive in water sources for over a month, but the primary source of recurrent infections is most likely asymptomatic carrier horses. Anywhere from 4-50% of the horses on farms with recurring strangles are asymptomatic carriers of the infection, and they may continue to shed the bacteria for months to even years, serving as a continual source of new infections.

If you suspect a strangles outbreak, be sure to involve your veterinarian right away to determine the diagnosis and the best control practices for your particular farm. Strangles is a reportable disease in some states. Movement of any horses on or off the farm should be stopped, and new horses should not be introduced. Monitoring the temperature of all horses daily and isolating horses at the first sign of fever is one of the most effective ways to stop the spread of infection. Infected horses can transmit the bacteria to healthy horses one to two days after they develop a fever.

To learn more about strangles, visit our website at https://aaep.org/resource/client-education-presentation-understanding-equine-strangles/

As always, your veterinarian remains your best source of information and advice!

11/28/2024

11/12/2024

Timely info!

“A horse that does not get properly cooled down in the winter and is turned out into cold temperatures while still sweaty can be more susceptible to issues such as increased muscle soreness, respiratory disease and even colic,” says Timothy “Jake” Cox, DVM, of Noble Equine Veterinary Services in Purcell, Oklahoma.

Here are four steps to safeguard your horses health >> https://tinyurl.com/cool-down-methods

11/05/2024

IS RAIN ROT A FUNGAL OR A BACTERIAL DISEASE?

Rain rot (or rain scald) is the common name for a contagious BACTERIAL skin disease called dermatophilosis. It's caused by the bacterium "Dermatophilus congolensis," which thrives during wet seasons and in geographical locations with high precipitation and humidity. It can also develop after horses have sweat under blankets or tack, and equines with compromised immune systems are more susceptible.

Why should you not mistake rain rot for a fungal disease?
Antifungal medications and topicals have no effect on the bacteria responsible for rain rot, therefore diagnosing the condition correctly is very important!

How does rain rot happen?
The bacteria infects the hair follicles and damages the hair follicle and shaft; the hair will then pull out in small clumps leaving pink skin or purulent scabs behind (pro tip: your horse will NOT thank you for picking at them!) If you do not address the factors that promote the right bacterial environment (for example, you always leave your horse to stand outside in the rain without shelter or the protection of a waterproof rug), rain rot can keep recurring. If left untreated, the condition can even progress to a point where it opens the door for more serious, secondary skin infections.

If you suspect your horse has rain rot, be sure to consult your veterinarian on the best treatment plan based on the severity of your horse's case. While there are a million products that can be found in your local tack store, your horse doctor may have cause to prescribe a specific course of action.

11/02/2024

Twenty-three Quarter Horse racehorses across California, New Mexico, and Texas have tested positive for EIA.