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Journal of the American Animal Hospital Association 40:109-114 (2004)
© 2004 American Animal Hospital Association

Original Article

Comparison of Various Methods for Estimating Body Fat in Dogs

Dianne I. Mawby, DVM, MVSc, Diplomate ACVIM, Joseph W. Bartges, DVM, PhD, Diplomate ACVIM, Diplomate ACVN, Andre d’Avignon, PhD, Dorothy P. Laflamme, DVM, MS, PhD, Diplomate ACVN, Tamberlyn D. Moyers, LVT and Tamorah Cottrell, DVM

From the Department of Small Animal Clinical Sciences (Mawby, Bartges, Moyers, Cottrell), College of Veterinary Medicine, University of Tennessee, Knoxville, Tennessee 37996-4544; the Chemistry Department (d’Avignon), Washington University, St. Louis, Missouri 63130; and the Nestle Purina Petcare Company (Laflamme), Checkerboard Square, St. Louis, Missouri 63164.

Obesity is considered one of the most common forms of malnutrition occurring in dogs. Laboratory methods of evaluation of body composition in live dogs have included dual-energy X-ray absorptiometry (DEXA) and deuterium oxide (D2O) dilution. Clinical methods of evaluation include assigning a body condition score (BCS) based on visual observation, palpation, and morphometric measurements. This study used these four methods to evaluate 23 healthy, adult, client-owned dogs. Good correlation (coefficient of determination [r2]=0.78) was found between measurements of percent body fat (%BF) determined by the D2O dilution method and the DEXA scan. Percent body fat can also be estimated using BCS (r2=0.92 comparison with DEXA) or by using morphometric measurements with simple calculations (r2=0.92 comparison with DEXA).




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