La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Estimating lipid and lean body mass in small passerine birds using TOBEC, external morphology and subcutaneous fat-scoring
Auteurs :	Bradley J. Bergstrom, Auteur ; Thomas W. Sherry, Auteur
Type de document :	Article
Dans :	Journal of Avian Biology (39(5) SEP 2008)
Article en page(s) :	507-513
Langues:	Anglais
Résumé :	To assess regression models for lipid and lean body mass in small birds, we recorded live body mass +/- 0.1 g, total body electrical conductivity (TOBEC; from "third generation" TOBEC machine EM-SCAN (R) SA-3000) or E-Value, visual fat score (VisFat), and seven body measurements for 52 migratory passerine birds of 13 species (5-40 g). We determined lipid and lean mass of each bird after petroleum-ether extraction of lipids. We obtained "net" E-Value (NEV) for each scanned bird by subtracting the E-Value of the empty bird-restraining tube, because these showed an inverse temperature dependence (P

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