Doug Byars, DVM, Dipl. ACVIM

Doug Byars, DVM, Dipl. ACVIM, is Director of the medicine clinic at Hagyard-Davidson-McGee equine practice in Lexington, Ky.

Articles by: Doug Byars, DVM, Dipl. ACVIM

Checking the Vitals: The Lungs

Since you can’t tell your horse to “Take a deep breath,” listening to your horse requires some technique to hear lung sounds.

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Checking the Vitals: Abdominal Sounds

Unlike heart and respiratory rates, abdominal sounds do not punch a specific time clock for generating “gut sounds.” The rhythmic peristaltic churning of food mixed with fluids within the gut varies in slower waves depending on meal time, the meal itself, and the level of activity. You don’t actually “time” bowel sounds, but you do want to know if they are present.

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“Sticky” Third Eyelid

Twice, my 12-year-old Paint gelding has gotten his third eyelid “stuck” over the top of his eyeball for 10 or 20 seconds. The first time was when water splashed in his eye during a bath.

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Insulin Resistance and Layup Time

My 18-year-old Percheron/ Morgan gelding was diagnosed with insulin resistance. Just prior to being confined to stall rest for a connective tissue injury, his insulin was 67 microIU/mL. The vet did a dexamethasone suppression test to rule out PPID,

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Comparing Humans and Horses

Comparisons of humans to horses logically can start with the anatomy. We stand upright; horses stand prone on their four limbs. What we call our knees are the stifles of horses, and our heels or ankles are horses’ hocks. Our foot is their cannon

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Research… Missing Dollars

Leaders in veterinary research and the equine industry should develop policy initiatives that recognize needed changes in the research landscape. Equine medicine remains grossly underfunded. As companion animals, horses receive few government

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