La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Measuring ketones in the field: rapid and reliable measures of beta-hydroxybutyrate in birds (2019)
Auteurs :	Caroline Lindholm, Auteur ; Jordi Altimiras, Auteur ; John Lees, Auteur
Type de document :	Article
Dans :	Ibis (161(1) January, 2019)
Article en page(s) :	205-210
Résumé :	Ketone bodies such as beta-hydroxybutyrate are important indicators of metabolic condition in birds and are linked to a suite of ecologically relevant factors including migratory decision-making, hunger level and ectoparasite load. Portable point-of-care (POC) devices designed to measure ketones in humans offer a cheap and easy solution to field physiologists in comparison with previous laboratory methods; however, their accuracy for use in birds has received scant attention. Here, we assessed the accuracy of a POC ketone meter (FreeStyle Precision Neo, Abbott, IL, USA) using samples from intermittently fed Red Junglefowl Gallus gallus. Although the device overestimated ketone levels in comparison with laboratory-derived values, random error was low and laboratory vs. device values correlated well, indicating that the Precision Neo is of sufficient accuracy for use in the field and is a pragmatic choice for avian physiologists.

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