Les Sellnow

Les Sellnow is a free-lance writer based near Riverton, Wyo. He specializes in articles on equine research, and operates a ranch where he raises horses and livestock. He has authored several fiction and non-fiction books, including Understanding Equine Lameness and Understanding The Young Horse, published by Eclipse Press and available at www.exclusivelyequine.com or by calling 800/582-5604.

Articles by Les Sellnow

Lymphangitis in Horses

Many horse owners are faced with what is unscientifically called a "fat leg" in their horses. You walk into your field or stall to catch your horse, and there he stands, lame, with one leg swollen from the stifle down to twice its normal size. Read More

Slaughter Industry Interrupted by EU Ban

Horse slaughter plants in the United States are operating on a month by month basis because of a dispute between the European Union (EU) and the United States Department of Agriculture (USDA).

"We are just a pawn in a much larger Read More

Shed Ready? Breeding Soundness Exam

Reproduction, from Nature’s viewpoint, is a pretty straightforward procedure that begins with breeding and ends with parturition. From the horse owner’s viewpoint, it isn’t all that simple or easy. Many things can happen between those two points Read More

Ringbone in Horses

Ringbone, a lameness disease of the pastern and coffin joints, is a degenerative disorder that has no cure. Read More

Getting A Second Opinion

Your horse comes up lame. You call your veterinarian and have him or her come out and examine the animal. Your practitioner prescribes a treatment protocol that is carried out. The horse improves somewhat, but a nagging lameness remains. You cal Read More

Artificial Insemination For Horses

Artificial insemination of equines has been around a long time and, through the years, has had a profound impact on the horse industry. Most of the impact has been of the positive variety, but there also have been some negatives. Just when Read More

American Horse Council 1999

Horse enthusiasts attending the American Horse Council (AHC) meeting were presented with heady figures concerning the economic impact of the U.S. equine industry. They also heard sobering reports involving the importation of horses with Read More

Transportation to Slaughter: Proposed Regulations


United States Department of Agriculture (USDA) regulations governing the transportation of horses to slaughter facilities are, relatively speaking, nearing the implementation stage. The transportation of horses to slaughter Read More

Horses Destined for Slaughter

One of the most controversial topics involving equines in the United States concerns sending horses to slaughter. Many horse owners and even non-owners are miles apart when this issue arises. There are those who take an extreme stance—that human Read More

Gastric Ulcers

Stomach ulcers and lesions can be an affliction in horses young and old. The presence of ulcers often causes severe discomfort to the horse and, in radical cases, can result in death. Attempting to describe ulcers is a bit like trying to describ Read More

Colic: To Walk Or Not To Walk

Despite what has been passed down through the years, it is acceptable for a colicky horse to lie down. Furthermore, it is considered unlikely that the horse will twist the intestines by rolling. Read More

When Joints Fail: Osteochondrosis

Osteochondritis dissecans (OCD) is an affliction, if left untreated, that can have long-term harmful effects on the young, growing horse as well as the performing or racing horse. OCD actually is a disease subset of osteochondrosis and Read More

Antibiotics: Use And Abuse

Science, as well as all of mankind for that matter, is engaged in a relentless battle against bacteria. On the surface, it would seem that the human side has the advantage. Billions of dollars are available for research, and some of the best Read More

Parasites And Pastures

Pastures and internal parasites. You can’t have one without the other. If you have  pastures, your horses will have internal parasites. These pesky little creatures that can erode a horse’s good health have been successful in thwarting the Read More

Thyroid Glands in Horses

A properly functioning thyroid gland is highly important to a horse's good health. That much is easy. From there it gets more difficult and complex. Knowing when the thyroid gland is in a state of dysfunction is not easy to determine. Read More

Bone Formation With Exercise

Strong bones are essential if a horse is to perform successfully and still remain sound. Read More


 A discussion of epiphysitis is anything but simple, straightforward, or lacking in complexity. To begin with, there is confusion and Read More

Testicular Descent

A discussion of cryptorchidism in young stallions is fraught with controversy. Everyone agrees on what constitutes cryptorchidism, but that sometimes is as far as agreement goes. We know that the condition involves the retention of one or both Read More

Vaccinations for Horses

Vaccines have been true godsends the world over. Diseases that once laid waste to large segments of the human population now are held in check by vaccines. One of those killing diseases, smallpox, has been eradicated. Much the same has happened Read More

Spring Tune-Up

We are ready for a new season of fun riding or competing. The question that must be answered at this point is this: How ready are our horses? In some cases, the answer is that they are kept ready all year long. Read More

Post-Foaling Problems In Mares

Next on the concern list immediately after foaling is the mare. Did she come through the short, but almost violent birthing process unscathed? Or are we facing some post-foaling problems that could compromise her health, her ability to conceive again Read More

Teasing for Successful Breeding

A good teasing program is essential for insuring success in an equine breeding program. Without it, breeding can become a hit-and-miss proposition, despite the sophisticated tools that are available to veterinarians and breeding technicians. Read More

Botulism Alert!

It was a grim sight. My wife's handsome young National Show Horse gelding lay writhing on the ground, unable to rise. He appeared to be in the grip of partial paralysis that allowed movement of the front legs, but not the rear. We immediately Read More

Fetal Development and Foal Growth

Foals born to mares which do not receive proper nourishment during gestation could be born weak. Read More

Regulating Estrus in Mares

Having mares come into estrus at regular intervals can be an important assist in maintaining his fertility. Read More