Background: The prevalence of obesity in horses in the eastern United States is not well documented. Objective: To determine body condition and risk factors for obesity in horses in Southwest Virginia during summer. Animals: A sample of 300 mature (4-20 years old), light breed horses (140 mares, 151 geldings, and 9 stallions) from the VMRCVM Equine Field Service practice equine database. The horses were from 114 farms and 138 owners. Methods: Horses were evaluated over a 60-day period in this cross-sectional, prospective study. A questionnaire was completed for each horse. Body condition score (BCS) was assigned using a scale of 1 (emaciated) to 9 (obese) by 2 independent scorers. Morphometric measurements included average neck circumference (ANC), girth, body length, and height at the withers. Horses were categorized based on BCS as underconditioned (BCS < 4), optimal condition (BCS 4-6), overconditioned (BCS 7), and obese condition (BCS 8-9). Results: Five horses (1.7%) were underconditioned, 142 horses (47.3%) were optimally conditioned, 97 horses (32.3%) were overconditioned, and 56 (18.7%) were obese. Estimated body weight (EBW) (r = 0.14, P = .015), body mass index (BMI) (r = 0.46, P < .001), and neck circumference to height ratio (NCHR) (r = 0.50, P = .001) increased with increasing BCS. Conclusions and Clinical Importance: The prevalence of overconditioned and obese horses in this population was higher than reported in previous studies and indicates that obesity might be an emerging problem in horses. © 2012 by the American College of Veterinary Internal Medicine.
CITATION STYLE
Thatcher, C. D., Pleasant, R. S., Geor, R. J., & Elvinger, F. (2012). Prevalence of Overconditioning in Mature Horses in Southwest Virginia during the Summer. Journal of Veterinary Internal Medicine, 26(6), 1413–1418. https://doi.org/10.1111/j.1939-1676.2012.00995.x
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