Equine Mobile Veterinary Services, David Hayes, DVM

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.

10/24/2024

TAKE OFF THE HALTERS!!!

PSA: Just A Reminder To Remove The Halter off your horse when put out to pasture or stall or use a break away halter. Halters can snag on Horse Shoes and many other things like Stock fencing too!
***🛑Not my image🛑***

10/22/2024

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 horse may be at an increased risk, contact your equine veterinarian so that they can properly evaluate your horse's unique situation.

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

10/05/2024

Great visual!

WHAT CAUSES HOOF ABSCESSES?

Sooner or later, nearly all horse owners will deal with a hoof abscess. But what does "hoof abscess" actually mean?

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 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. (The diagram shows a simplified view of the equine hoof to help visualize the structures involved in this process.)

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.

09/21/2024

Puncture wounds in the foot qualify as medical emergencies, due to the number of vital structures just beneath the sole that can be physically damaged and/or contaminated with bacteria when they are penetrated by a sharp object.

If your horse steps on a nail or other sharp object and it remains embedded in the hoof, resist the temptation to pull the nail out and consult with your veterinarian first. Leaving the nail in place will allow the vet to take x-rays of the foot before removal, which helps to identify exactly what structures have been penetrated, and to plan the most appropriate strategy for dealing with the situation.

If your veterinarian advises, carefully remove the nail to prevent the horse from stepping on it and driving it deeper into the hoof cavity. As you remove it, be sure to mark the exact point and depth of entry with tape and/or a marker so the veterinarian can assess the extent of damage. Apply antiseptic to the wound, and wrap to prevent additional contamination while you wait for your appointment.

Penetrating hoof wounds can be extremely serious and shouldn’t be underestimated. The prognosis for successful recovery depends on quick action to identify the path of the nail, treatment of potential infection and mechanical damage to the foot, and proper aftercare. As always, consult your horse doctor for more information and advice!

09/04/2024

UNDERSTANDING PROUD FLESH ✍️

Wounds on the bodies and limbs of our equine companions are exceptionally common. In particular, wounds on lower limbs can be especially difficult to manage. There is little extra skin in these areas, making large wounds difficult to close via suturing.

In addition, wounds on the lower legs are contaminated easily with bacteria since they are closer to the ground, bedding, and manure. The constant movement of an animal's legs as it walks, turns, and bears weight can also greatly impair healing, especially if the wound occurs over a joint. All of these factors can often halt the normal progression of the healing process and result in a chronic wound.

Persistent inflammation, along with infection, is a major contributor to exuberant granulation tissue (or proud flesh) formation in a wound. Proud flesh is not conducive to wound healing as it prevents the wound from epithelializing (the process of the skin cells covering the wound), and sometimes it can become so large that it appears to be a tumor, usually obliterating the original wound.

Prevention of proud flesh involves good wound management. For the best healing, wounds should be identified and treated quickly and properly — especially on the lower limbs. Consult your veterinarian about any wounds that appear deep or extensive, that lie over important structures (like joints and tendons), or that already show signs of proud flesh development. Rather than waste time and money in trials and errors that could delay your equid's healing, ask your veterinarian what products are best for your situation.

08/26/2024

Summer and fall are the peak time for arbovirus infection as these diseases (which include Eastern Equine Encephalitis [EEE], West Nile Virus [WNV], Western Equine Encephalitis [WEE] and Venezuelan Equine Encephalitis [VEE]) are transmitted by several different species of mosquitoes and biting insects.

With more states reporting cases of West Nile Virus (28 cases have been reported in August as of today), this is your reminder to keep your horses up to date on vaccinations with the guidance of your veterinarian to best protect your equine friends from infection.

Learn more about West Nile Virus and find downloadable resources on the Equine Disease Communication Center's website at: https://www.equinediseasecc.org/west-nile-virus

08/22/2024

ALWAYS GREAT INFO TO KEEP IN MIND!

07/10/2024

VERY GOOD BASIC VITAL SIGNS READ!

Do you know what your horses normal 𝘃𝗶𝘁𝗮𝗹 𝘀𝗶𝗴𝗻𝘀 are? Get in the habit of taking and recording your horse's 𝘃𝗶𝘁𝗮𝗹 𝘀𝗶𝗴𝗻𝘀 so that you're ready for any emergency.🐴
https://www.aqha.com/-/equine-vital-signs

07/08/2024

It's National Farriers Week! Let's celebrate the hard work that our farriers put in daily to partner with equine veterinarians and ensure the health and well-being of our horses. Proper hoof care is essential for a sound and happy horse, so it goes without saying that a skilled farrier is both a necessity and a tremendous asset.

Don't forget to give a shoutout to your farriers this week and show them your appreciation for their dedication to their craft!