Abstract
BackgroundEquations based on single-frequency bioelectrical impedance analysis at 50 kHz for determination of total body water content (TBW) have been previously validated in healthy non-sedated beagle dogs. We investigated whether these equations are predictive of TBW in various canine breeds by comparing the results of these equations with TBW values evaluated directly by deuterium oxide (D2O) dilution.MethodsTotal body water content of 13 healthy adult pet dogs of various breeds was determined directly using D2O dilution and indirectly using previous equations based on values obtained with a portable bioelectric impedance device. Paired Student’s t-tests were used to compare TBW obtained by single-frequency bioelectrical impedance analysis and D2O dilution. A p-value of <0.05 was considered statistically significant for all analyses.ResultsSignificant differences were observed between TBW determined by the reference method and the values obtained with both predictive equations.ConclusionsThe proposed equations including single-frequency bioelectrical impedance analysis parameters validated at 50 kHz in healthy adult beagles need to be modified including morphological parameters such as body size and shape in a first approach. As in humans, morphological-specific equations have to be developed and validated.
Highlights
Equations based on single-frequency bioelectrical impedance analysis at 50 kHz for determination of total body water content (TBW) have been previously validated in healthy non-sedated beagle dogs
Because Bioelectrical impedance analysis (BIA) has potential as an easy technique for assessment of body composition in veterinary practice, Yaguiyan‐Colliard et al BMC Res Notes (2015) 8:336 we aimed to verify whether the protocol and equations validated in adult non-anesthetized beagle dogs for single-frequency (SF-BIA) at 50 kHz [8] were applicable for the prediction of TBW in non-anesthetized dogs of various breeds
The TBW values obtained with predictive equations based on BIA and morphological parameters were significantly different from those obtained with D2O dilution
Summary
Equations based on single-frequency bioelectrical impedance analysis at 50 kHz for determination of total body water content (TBW) have been previously validated in healthy non-sedated beagle dogs. We investigated whether these equations are predictive of TBW in various canine breeds by comparing the results of these equations with TBW values evaluated directly by deuterium oxide (D2O) dilution. Bioelectrical impedance analysis (BIA) is often presented as an alternative to dilution techniques and to Because BIA has potential as an easy technique for assessment of body composition in veterinary practice, Yaguiyan‐Colliard et al BMC Res Notes (2015) 8:336 we aimed to verify whether the protocol and equations validated in adult non-anesthetized beagle dogs for single-frequency (SF-BIA) at 50 kHz [8] were applicable for the prediction of TBW in non-anesthetized dogs of various breeds
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