Prediction of Body Composition in Growing WistarRats by the Measurement of Total Body Electroconductivity Tatsuya Morita1, ShunsukeYuto1, Hirofumi Motoi2,
Taro Kishida3, Shuhachi Kiriyama4 and KiyoshiEbihara3 1Department of Applied BiologicalChemistry, Faculty of Agriculture, Shizuoka University
2Research Center For Basic Science, Nisshin Seifun GroupInc.
3Departmenl of Biological Resources, Faculty ofAgriculture, Ehime University
4Faculty of Nutritional Sciences. The University ofShizuoka The purpose of current study is to deteruinewhether il is possible to predict the body composition by totalbody electroconductivity (TOBEC) analysis in growing Wistar rats.Correlations between TOBEC-derived calibration equations and bothchemically analyzed fat-free mass (FFM, r=0.991 ) and body fat (BF,r=0.945) were highly significant. Validation study proved an enoughaccuracy of the equation-derived FFM (±8%), while theequation-derived BF was somewhat variable (±3%). Thepresent results suggest that TOBEC analysis is useful to monitorintermediate changes of body composition by the ingestion ofresistant starch without an invasion when the male Wistar rats areused in the defined body weight (170-400 g).
Key words: body fat, f'at-free mass, male Wistar rats, total bodyelectroconductivity.
Abbreviations: body fat (BF), body weight (BW), fat-free mass(FFM), high-amylose cornstarch (HAS), recrystallized |
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