In May 2024, a diet evaluation was requested for an eleven-month-old appaloosa gelding named Phix, located in Nova Scotia, Canada. At the time of the submission, he weighed approximately 550 lb (250 kg). Phix was reported to be healthy but...
Anesthesia refers to the loss of sensation and consciousness from administration of anesthetic medications. Anesthesia is a critical aspect of veterinary medicine, as it allows for life-saving or career-saving surgeries and diagnostic procedures that would otherwise be impossible to perform...
Horses are valued human companions, fulfilling roles from work, to sport, to companionship. Ensuring the wellbeing and quality of life of our horses is a priority for many horse owners, even during challenging times such as end-of-life. Quality of life...
The protein lumps and bumps that are found on the neck and back of the horse are often eosinophilic granulomas. These are small, benign nodules that can develop under a horse's skin. They may occur as single bumps or develop...
The horse's brain is responsible for managing and regulating all bodily functions and behaviours. The cerebellum, located at the back of the brain beneath the occipital lobes, plays a vital role in coordinating and fine-tuning motor movements. Equine Cerebellar Abiotrophy...
Inguinal hernias, also known as scrotal hernias, are a condition where a horse's intestine slips through the inguinal canal and settles in the vaginal tunic. Inguinal rupture is where a horse’s intestine slips through a tear in the vaginal ring...
In April 2024, a diet evaluation was requested for a 22-year-old retired show jumper gelding weighing approximately 1,200 lb (544 kg) in Quebec, Canada. Reported health concerns included Pituitary Pars Intermedia Dysfunction (PPID), arthritis, and poor topline condition. The horse...
Cyanide toxicosis is a potentially fatal condition in horses which is caused by the ingestion of plants containing cyanogenic glycosides. Understanding cyanide toxicosis is essential for anyone involved in horse care. Over 3,000 plants worldwide are known to produce cyanogenic...
Pain in horses, like in other animals, is an unpleasant sensory and emotional experience associated with actual or potential tissue damage. It can result from various sources, including injuries, diseases, or surgical procedures. Recognizing signs of pain in horses is...
In March 2024, a diet evaluation was requested for two 16-year-old mares weighing approximately 1000 lb (455 kg) in Missouri, USA. Reported health concerns included weight gain, poor hoof quality, and a history of laminitis. The horse owner’s primary goal...
Intussusception in horses describes a condition where a segment of the intestine folds inward on itself, like closing a telescope. This condition primarily affects younger horses, particularly foals, but is occasionally seen in mature horses. Intussusception can lead to severe...
Conjunctivitis, also known as "pink eye", is an inflammation of the conjunctiva, the mucous membrane that covers the front of the eye and lines the inside of the eyelids. This condition is the most common acquired eye disease in animals....
The stifle is a complex joint in the horse's leg, comparable to the human knee. It comprises bones, ligaments, cartilage, and muscles that work together to enable movement and provide stability. This joint plays a crucial role in the overall...
Anthelmintic (parasitic dewormer) resistance is one of the most pressing concerns in the world of equine health. In this phenomenon, internal parasites affecting horses are becoming resistant to the medications veterinarians use to treat parasitic infection. Without effective deworming medications,...
Ryegrass is a popular forage choice worldwide, and is a nutritious source of protein and energy for horses and other grazing animals. Although both species of ryegrass are good sources of nutrition and are not toxic in and of themselves,...
Horse owners have a vested interest in their horse's health, as health conditions can directly impact their horse's wellbeing, performance, and longevity. Understanding common horse diseases is crucial for anyone involved in equine care, as early recognition of the symptoms...
Having the right equipment for yourself and your horse is critical for comfort, safety, and performance. Although the basics of horse tack are similar between Western and English riding, English riders have specific equipment that they use to meet the...
Red blood cells express different surface molecules (factors) depending on the animal's specific genetic code. Horses have over 30 major blood factors, compared to the 8 major blood factors in humans. Blood types are important because immune system recognizes these...
Keeping stallions happy, healthy, and appropriately managed requires an understanding of their unique behavior compared to mares and geldings. Stallions often exhibit instinctive behaviors shaped by evolutionary pressures and social dynamics in the wild. Contrary to their natural environment with...
Tyzzer's disease, while rare, is a highly fatal hepatic condition that can affect all foals, including those which are healthy and well-nourished. The disease is not believed to be contagious, but the presence of bacteria in a contaminated environment can...
Wry nose is a congenital condition in foals where the nose appears twisted or crooked due to malformations that develop during gestation. This condition involves significant changes in the shape and direction of the upper jaw, nasal bones, incisive bones,...
Sesamoid injuries are a common and often serious equine injury. The small sesamoid bones play a large role in reducing tension on the muscles and tendons of the body. The proximal sesamoid bones (PSBs), located in the fetlock joint, play...
Horse racing is a thrilling sport, demonstrating the power and speed of equine athletes performing at their absolute best. From the raw speed and acceleration of Quarter Horses, to the impressive staying power of Thoroughbreds, to the jumping ability of...
Parrot mouth is a common equine dental condition typically identified at birth or shortly after. It is characterized by a pronounced overbite where the upper front teeth protrude beyond the lower row of teeth, causing the upper lip to overlap...
A properly functioning urinary system plays a vital role in maintaining the overall health and well-being of a horse. It acts as a filter, removing waste and toxins from the bloodstream and preventing harmful substances from accumulating in the body....
Atypical Myopathy (AM) and Seasonal Pasture Myopathy (SPM) are highly fatal muscle disorders in horses caused by the ingestion of seeds of the box elder or sycamore trees. Seeds of these species contain a compound called hypoglycin A that converts...
Glanders is one of the oldest diseases known to affect horses. It is a highly contagious and fatal disease that affects horses, donkeys, and mules, caused by the bacterium Burkholderia mallei. It poses a significant zoonotic threat, as it can...
Theiler's disease, also known as equine serum hepatitis, is a viral infection likely caused by equine parvovirus-hepatitis. Horses most commonly develop Theiler's disease after administration of an equine-origin biologic product, such as serum or blood. Theiler's disease causes rapid onset...
Monensin is a type of antibiotic commonly found in livestock and poultry feed that is highly toxic to horses. Monensin belongs to a medication class called ionophore antibiotics. These antibiotics are frequently used in feed as parasite control and to...
Bog spavin is a common term for effusion in the horse's tarsocrural joint. This painful condition describes inflammation and fluid accumulation in the joint capsule between the tibia and the tarsal bones in the hock. Bog spavin is characterized by...
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