Seasonal changes in metabolic rates in muskoxen following twenty- four hours of starvation

Timing of seasonal trends in post-prandial energy expenditure (EE) was measured in muskoxen (2 males and 1 female) given a standardized meal followed by a 24-26 h starvation during 10 months over the course of a year. EE was significantly lower in winter than summer. CH4 production (EctM) was revers...

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Bibliographic Details
Published in:Rangifer
Main Authors: Lawler, James P., White, Robert G.
Format: Article in Journal/Newspaper
Language:English
Published: Septentrio Academic Publishing 1997
Subjects:
Muskoxen
metabolic rates
Ovibos moschatus
energy expenditure
seasonality
methane
ovibos moschatus
Rangifer
Online Access:https://septentrio.uit.no/index.php/rangifer/article/view/1365
https://doi.org/10.7557/2.17.3.1365
Description
Summary:Timing of seasonal trends in post-prandial energy expenditure (EE) was measured in muskoxen (2 males and 1 female) given a standardized meal followed by a 24-26 h starvation during 10 months over the course of a year. EE was significantly lower in winter than summer. CH4 production (EctM) was reversed with winter highs and summer lows. Ratio of ECH4:EE indicates a change in dietary efficiency but this difference was not associated with a seasonal shift in RQ which was constant. The main increase in EE from winter to summer occurred between April and May and the summer to winter decrease between August and Septembet.

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