Data from: Oxidation of linoleic and palmitic acid in pre-hibernating and hibernating common noctule bats revealed by 13C breath testing ...

• Main Authors: Weise, Elisabeth, Voigt, Christian C.
• Format: Dataset
• Language: English
• Published: Dryad 2017
• Subjects: oxidative fuel; Fatty Acid Metabolism; Nyctalus noctula; Hibernation; energetics
• Online Access: https://dx.doi.org/10.5061/dryad.hr744; https://datadryad.org/stash/dataset/doi:10.5061/dryad.hr744

Mammals fuel hibernation by oxidizing saturated and unsaturated fatty acids from triacylglycerols in adipocytes, yet the relative importance of these two categories as an oxidative fuel may change during hibernation. We studied the selective use of fatty acids as an oxidative fuel in noctule bats (Nyctalus noctula). Pre-hibernating noctule bats that were fed 13C-enriched linoleic acid (LA) showed 12 times higher tracer oxidation rates compared to conspecifics fed 13C-enriched palmitic acid (PA). After this experiment, we supplemented the diet of bats with the same fatty acids on 5 subsequent days to enrich their fat depots with the respective tracer. We then compared the excess 13C enrichment (APE) in breath of bats for torpor and arousal events during early and late hibernation. We observed higher APE values in breath of bats fed 13C-enriched LA than in bats fed 13C-enriched PA for both states, torpor and arousal, and also for both periods. Thus, hibernating bats oxidized selectively endogenous LA instead ... : Data_RosnerVoigtMetabolic rate, APE values and TOR for pre-hibernating common noctule bats (Fig. 1), body temperature, metabolci rate and APE values for hibernating noctule bats (early Fig. 2, late Fig. 3) ...