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The yellow lines mark the distance between the top and bottom part of the coffin bone relative to the hoof wall, showing the distal (bottom) of the coffin bone is rotated away from the hoof wall. Laminitis is a inflammation of laminae that affects the feet of ungulates and is found mostly in horses and cattle. Clinical signs include foot ...
Hoof or horseshoe wear can indicate breakover and if the horse is dragging its toes. Change in shape of the hoof wall is also common in horses with laminitis. "Founder rings," or thickened concentric rings in the hoof wall, indicate a past episode of laminitis. Concavity of the dorsal (front) surface of the hoof can indicate chronic laminitis.
The contralateral (opposite) leg then bears all of the weight, which reduces blood flow to the hoof and strains the attachments of the laminae, leading to laminitis. Although support-limb laminitis is a risk for any horse that is not weight-bearing lame, occurring in roughly 16% of cases, it is uncommon in foals and yearlings. [135]
By July 13, Barbaro had developed a severe case of laminitis in the left hind hoof—a potentially life-threatening affliction that is common in horses who shift weight to one hoof for extended periods to keep pressure off an injured hoof. A procedure called a hoof wall resection removed 80% of his left rear hoof. The remaining 20% of his hoof ...
The issue of hoof care is a subject of great debate. Corrective shoeing can be beneficial to horses suffering from navicular disease, although sometimes the effects are only temporary. Others believe that removing the shoes altogether is the best way to manage this disease, as it allows increased circulation to the hoof. [12]
The equine heart is a muscular pump that circulates blood throughout the body. It is more globoid in shape than the human heart and consists of four chambers: the left and right atria, and the left and right ventricles. The average adult horse has a 3.6-kilogram (7.9 lb) heart, although it can be more than twice this size.
Obese horses are usually fed hay at a level of 1.5% ideal body weight, which may be dropped to 1% of body weight if no weight loss is realized after 30 days. However, feeding less than 1% of body weight in forage is not recommended, since secondary problems such as hyperlipemia and stereotypies can occur, and insulin resistance may actually be ...
Hoof cracks are separations or breaks in the wall of a hoof. The most common type of hoof cracks are quarter cracks, which occur at the quarter, the thinnest and most delicate part of the hoof wall. Injury to the site may be the result of common things such as hard racetracks and uneven surfaces. [ 83 ]