1994
DOI: 10.1111/j.1748-7692.1994.tb00385.x
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Use of Bioelectrical Impedance Analysis to Assess Body Composition of Seals

Abstract: Bioelectrical impedance analysis (BIA) measures resistance and reactance of a current as it passes through an organism. The validity of using BIA as a tool to measure body water content, and hence body composition and condition, was tested on harp and ringed seals. The resistance and reactance readings from BIA were compared to estimates of total body water (TBW) determined via tritiated water dilution. The relationship between resistance and TBW (% of body mass) was linear after logarithmic transformation and… Show more

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Cited by 17 publications
(26 citation statements)
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“…We could predict TBW very well using body mass alone. Though the literature on the use of BIA to predict components of body composition in wild animals is growing, few studies have compared the ability of morphometric vs. bioelectric variables to predict TBW (Wirsing et al 2002; see for example Gales et al 1994). In those studies Fig.…”
Section: Discussionmentioning
confidence: 99%
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“…We could predict TBW very well using body mass alone. Though the literature on the use of BIA to predict components of body composition in wild animals is growing, few studies have compared the ability of morphometric vs. bioelectric variables to predict TBW (Wirsing et al 2002; see for example Gales et al 1994). In those studies Fig.…”
Section: Discussionmentioning
confidence: 99%
“…The role of fat stores in northern species is of particular importance because many animals occurring in cold climates experience seasonal cycles of fat acquisition and depletion associated with limited food availability (e.g., yellow-bellied marmots, Marmota flaviventris (Audubon and Bachman, 1841), Armitage et al 1976; muskrats, Ondatra zibethicus (L., 1766), Virgl and Messier 1992; seals, Phoca groenlandica Erxleben, 1777 (= Pagophilus groenlandicus (Erxleben, 1777)) and Phoca hispida Schreber, 1775 (= Pusa hispida (Schreber, 1775)), Gales et al 1994; porcupines, Erethizon dorsatum (L., 1758), Berteaux et al 2005; skunks, Mephitis mephitis (Schreber, 1776), Hwang et al 2005; raccoons, Procyon lotor (L., 1758), Pitt et al 2006; also see Pond 1978 andWunder 1984). However, measuring body composition in free-ranging animals is challenging.…”
Section: Introductionmentioning
confidence: 99%
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“…Transmission of an electrical current through the organism will have greater resistance through fat tissue and more conductivity through lean mass (Hilderbrand, Farley & Robbins, ), with body water and body fat being inversely related (Farley & Robbins, ). BIA has been used to quantify fatness in a range of species, including humans (Lukaski et al ., ), porcupines Erethizon dorsatum (Barthelmess, Phillips & Schuckers, ), pinnipeds (Gales et al ., ), skunks Mephitis mephitis (Hwang, Larivière & Messier, ), raccoons Procyon lotor (Pitt, Larivière & Messier, ), horses Equus species (Latman et al ., ) and ursids (Hilderbrand et al ., ; Gau & Case, ; Robbins et al ., ).…”
Section: Introductionmentioning
confidence: 99%