Metabolic rate and plasma T3 in ad lib. fed and starved muskoxen
Resting metabolic rate (RMR) in two 12 yrs., semidomesticated, female muskoxen was 0.86 ± 0.10 W • kg-1 in winter, and 1.74 ± 0.27 W • kg-1 in summer, (p<0.001). After 6 days of starvation RMR was down to 0.62 + 0.07 W • kg-1 and 0.77 ± 0.03 W • kg-1 (p<0.001) in winter and summer, respectivel...
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doaj-527a22d24fe6420096b5d3de4799a42d2020-11-25T02:11:59ZengSeptentrio Academic PublishingRangifer1890-67291994-12-0114210.7557/2.14.2.11371071Metabolic rate and plasma T3 in ad lib. fed and starved muskoxenK.J. Nilssen0S.D. Mathiesen1A.S. Blix2Brattøra Research Station, University of Trondheim, Gryta 2, N-7010 Trondheim, NorwayDepartment of Arctic Biology, University of Tromsø, N-9037 Tromsø, NorwayDepartment of Arctic Biology, University of Tromsø, N-9037 Tromsø, NorwayResting metabolic rate (RMR) in two 12 yrs., semidomesticated, female muskoxen was 0.86 ± 0.10 W • kg-1 in winter, and 1.74 ± 0.27 W • kg-1 in summer, (p<0.001). After 6 days of starvation RMR was down to 0.62 + 0.07 W • kg-1 and 0.77 ± 0.03 W • kg-1 (p<0.001) in winter and summer, respectively. RMR during starvation in winter was 19% below predicted RMR for animals of equal body mass. Standing RMR was significantly higher (p<0.01) than lying RMR. Winter plasma levels of T3 in both animals were 1-1 nmol • l-1 when food was freely available, and 1.4 nmol • l-1 after 6 days of starvation. Plasma concentration of T3 in another 8 free ranging semi-domesticated, female muskoxen aged 12 yrs. in March was 0.64 ± 0.20 nmol • l-1. Corrseponding value in August was 1.00 ± 0.10 nmol • l-1, being significantly higher (p<0.01) than the winter value.https://septentrio.uit.no/index.php/rangifer/article/view/1137muskoxenOvibos moschatusthyroidal hormonesstarvationmetabolic rate |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
K.J. Nilssen S.D. Mathiesen A.S. Blix |
spellingShingle |
K.J. Nilssen S.D. Mathiesen A.S. Blix Metabolic rate and plasma T3 in ad lib. fed and starved muskoxen Rangifer muskoxen Ovibos moschatus thyroidal hormones starvation metabolic rate |
author_facet |
K.J. Nilssen S.D. Mathiesen A.S. Blix |
author_sort |
K.J. Nilssen |
title |
Metabolic rate and plasma T3 in ad lib. fed and starved muskoxen |
title_short |
Metabolic rate and plasma T3 in ad lib. fed and starved muskoxen |
title_full |
Metabolic rate and plasma T3 in ad lib. fed and starved muskoxen |
title_fullStr |
Metabolic rate and plasma T3 in ad lib. fed and starved muskoxen |
title_full_unstemmed |
Metabolic rate and plasma T3 in ad lib. fed and starved muskoxen |
title_sort |
metabolic rate and plasma t3 in ad lib. fed and starved muskoxen |
publisher |
Septentrio Academic Publishing |
series |
Rangifer |
issn |
1890-6729 |
publishDate |
1994-12-01 |
description |
Resting metabolic rate (RMR) in two 12 yrs., semidomesticated, female muskoxen was 0.86 ± 0.10 W • kg-1 in winter, and 1.74 ± 0.27 W • kg-1 in summer, (p<0.001). After 6 days of starvation RMR was down to 0.62 + 0.07 W • kg-1 and 0.77 ± 0.03 W • kg-1 (p<0.001) in winter and summer, respectively. RMR during starvation in winter was 19% below predicted RMR for animals of equal body mass. Standing RMR was significantly higher (p<0.01) than lying RMR. Winter plasma levels of T3 in both animals were 1-1 nmol • l-1 when food was freely available, and 1.4 nmol • l-1 after 6 days of starvation. Plasma concentration of T3 in another 8 free ranging semi-domesticated, female muskoxen aged 12 yrs. in March was 0.64 ± 0.20 nmol • l-1. Corrseponding value in August was 1.00 ± 0.10 nmol • l-1, being significantly higher (p<0.01) than the winter value. |
topic |
muskoxen Ovibos moschatus thyroidal hormones starvation metabolic rate |
url |
https://septentrio.uit.no/index.php/rangifer/article/view/1137 |
work_keys_str_mv |
AT kjnilssen metabolicrateandplasmat3inadlibfedandstarvedmuskoxen AT sdmathiesen metabolicrateandplasmat3inadlibfedandstarvedmuskoxen AT asblix metabolicrateandplasmat3inadlibfedandstarvedmuskoxen |
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