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Kentucky Equine Research continually conducts studies at its 150-acre research facility. Some of these results are presented at industry conferences or shared in peer-reviewed journals. Review some of our findings from the past 30 years below.
November 01, 2022

Nutrition of the Performance Horse

Kentucky Equine Research has created a free 90-page guide titled Nutrition of the Performance Horse that broadly covers the best ways to manage equine athletes, regardless of discipline, and includes practical management strategies and effective solutions for nutrition-related problems. In-depth discussions are also included regarding common issues such as gastric ulcers, hindgut acidosis, joint care, […]


June 04, 2021

Heart Rates at the Trot on a Mechanical Walker Are Correlated to Cardiovascular Fitness in Thoroughbred Racehorses

The relationship between heart rate (HR) and velocity under saddle or on a treadmill can be used to estimate cardiovascular fitness in horses. Whether HR data gathered during other types of exercise can be used to estimate fitness is unknown. This study hypothesized that HR data collected on a mechanical walker could be used to […]


June 04, 2021

Comparison of Skeletal Muscle Citrate Synthase Activity Across Equine Breeds

Skeletal muscle citrate synthase (CS) activity serves as a marker for muscle oxidative capacity. CS activity was compared among Quarter Horses (QH), Arabians (AR),  Thoroughbreds (TB), Standardbreds and Warmbloods at various ages and stages of training. Gluteus medius muscle biopsies were obtained at ages 6–23 m (n = 10), 2 y (n = 37), 3 […]


February 18, 2021

Changes in Red Blood Cell Fatty Acid Composition in Exercised Thoroughbred Horses Supplemented with Either KER EO-3 or Flax Oil for a Two-Month Period

The present study clearly demonstrates that daily intake of EPA and DHA from KER EO-3™ significantly increases RBC membrane EPA and DHA but that a similar amount of omega-3 in the form of ALA from flax (linseed) oil does not.  


December 21, 2020

Feeding Performance Horses with Myopathies

In combination with exercise, nutrition is an essential component of managing horses with myopathies. The optimal feeding program for an individual is tailored to the diagnosis of a specific underlying myopathy. Exertional myopathies are defined by muscle pain and impaired performance during or after exercise. Exertional rhabdomyolysis (ER) represents a subset of exertional myopathies characterized […]


June 11, 2019

Heart Rate, Speed and Lactate During the Cross-Country Phase of an Advanced and CCI*** Three-Day Event

Performance in three-day event horses is influenced by the horse’s innate ability combined with its level of fitness. Heart rate (HR) and blood lactate have been routinely measured in laboratory settings to evaluate fitness and/or ability in horses. To investigate whether these measurements are useful in assessing performance during competition, 11 horses competing at the […]


June 11, 2019

Omeprazole Reduces Calcium Digestibility in Thoroughbred Horses

Omeprazole (OM) is a proton pump inhibitor (PPI) that inhibits gastric acid secretion in horses and is the most popular treatment for EGUS. PPIs are also widely used in humans to treat acid-related conditions and have been associated with a reduction in the digestibility of several nutrients, including protein, fat, calcium (Ca) and iron. This […]


April 17, 2019

The Effect of Long-Chain Omega-3 Supplementation on Blood Serum Gamma-Glutamyl Transferase (GGT) Levels and Inflammation Post-Exercise in Thoroughbred Racehorses

Horses supplemented with EO-3™ had significantly lower (p<0.05) GGT levels 2 and 4 hours post-exercise compared to the control horses. This may have resulted from a reduction in inflammation observed post-exercise in the horses fed EO-3. Open Technical Bulletin


May 30, 2017

Estimating Digestible Energy Requirements of Three-day-event Horses Using KER ClockIt Sport Smartphone Application

Joe D. Pagan1, Kathleen O’Neill1, Natalie Ireland1 and Mike Davies2 1Kentucky Equine Research, Versailles, Kentucky, USA; 2ClockItEQ, Ltd., Perth, Western Australia   This study estimated digestible energy (DE) requirements of three-day-event horses during training in the early stages of the 2015 American eventing season using a novel smartphone application (KER ClockItTM Sport; Kentucky Equine Research, […]


May 30, 2017

Intensity and Distance of Exercise During Training in Advanced Three-day-event Horses and Thoroughbred Racehorses Assessed Using KER ClockIt Race Smartphone Applications

Joe D. Pagan1, Emma Mulvey1, Kathleen O’Neill1, Natalie Ireland1 and Mike Davies2, 1Kentucky Equine Research, Versailles, Kentucky, USA; 2ClockItEQ, Ltd., Perth, Western Australia Nutrient requirements for performance horses are dependent on the intensity and duration of exercise during training and competition. Differences between racehorses and upper-level event horses have not been previously defined. This study […]


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