Object structure

Title:

Validation of two new total body electrical conductivity (TOBEC) instruments for estimating body composition of live northern red-backed voles Clethrionomys rutilus

Creator:

Zuercher, G. L. ; Roby, D. D. ; Rexstad, E. A.

Place of publishing:

Białowieża

Date issued/created:

1997

Description:

Total body electrical conductivity (TOBEC) is a method for non-destructively estimating body composition. Authors sought to monitor seasonal changes in totaly body fat in northern red-backed voles Clethrionomys rutilus (Pallas, 1779), a microtine (10-45 g). Authors validated two new TOBEC instruments: the SA-3000 by EM-SCAN Inc. and the ACAN-2 by Jagmar Inc. Both instruments explained 94% of the variation in lean body mass and total body water. However, accuracy of fat estimates generated from lean mass predictions was poor for both instruments (± > 100%). Two instrument-specific multiple regression models and a TOBEC-free multiple regression model were used to estimated total body fat. All three improved the ability to predict total body fat in C. rutilus. These two TOBEC instruments can not be used to measure changes in total body fat of individualdue C. rutilus due to the small amount of fat reserves and lack of seasonal variation.

Subject and Keywords:

body composition ; Clethrionomys rutilus ; energetics ; fat ; microtines ; rodents ; voles

Relation:

Acta Theriologica

Volume:

42

Issue:

4

Start page:

387

End page:

397

Resource Type:

Article

Format:

application/pdf

Resource Identifier:

10.4098/AT.arch.97-38

Source:

click here to follow the link

Language:

eng ; Sum. eng.

Rights:

Rights Reserved - Free Access

Terms of use:

Copyright-protected material. May be used within the limits of statutory user freedoms

Digitizing institution:

Mammal Research Institute of the Polish Academy of Sciences

Original in:

Library of the Mammal Research Institute Polish Academy of Sciences

Projects co-financed by:

Programme Innovative Economy, 2010-2014, Priority Axis 2. R&D infrastructure ; European Union. European Regional Development Fund