| Diet affects resting, but not basal metabolic rate of normothermic Siberian hamsters acclimated to winter. | |
| | |
MedLine Citation:
|
PMID: 21889598 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
We examined the effect of different dietary supplements on seasonal changes in body mass (m(b)), metabolic rate (MR) and nonshivering thermogenesis (NST) capacity in normothermic Siberian hamsters housed under semi natural conditions. Once a week standard hamster food was supplemented with either sunflower and flax seeds, rich in polyunsaturated fatty acids (FA), or mealworms, rich in saturated and monounsaturated FA. We found that neither of these dietary supplements affected the hamsters' normal winter decrease in m(b) and fat content nor their basal MR or NST capacity. NST capacity of summer-acclimated hamsters was lower than that of winter-acclimated ones. The composition of total body fat reflected the fat composition of the dietary supplements. Resting MR below the lower critical temperature of the hamsters, and their total serum cholesterol concentration were lower in hamsters fed a diet supplemented with mealworms than in hamsters fed a diet supplemented with seeds. These results indicate that in mealworm-fed hamsters energy expenditure in the cold is lower than in animals eating a seed-supplemented diet, and that the degree of FA unsaturation of diet affects energetics of heterotherms, not only during torpor, but also during normothermy. |
| | |
Authors:
|
Jakub P Gutowski; Michał S Wojciechowski; Małgorzata Jefimow |
Related Documents
:
|
16823358 - Anthropometric, body composition and somatotype differences of greek elite female baske... 3667068 - Does exercise give an additional effect in weight reduction regimens? 11317148 - Aerobic and anaerobic power characteristics of saudi elite soccer players. 12543878 - Creatine supplementation does not affect kidney function in an animal model with pre-ex... 21151458 - Effect of oxidative damage due to excessive protein ingestion on pancreas function in m... 21994958 - Change in undercarboxylated osteocalcin is associated with changes in body weight, fat ... |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2011-8-24 |
Journal Detail:
|
Title: Comparative biochemistry and physiology. Part A, Molecular & integrative physiology Volume: - ISSN: 1531-4332 ISO Abbreviation: - Publication Date: 2011 Aug |
Date Detail:
|
Created Date: 2011-9-5 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 9806096 Medline TA: Comp Biochem Physiol A Mol Integr Physiol Country: - |
Other Details:
|
Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
|
Copyright © 2011. Published by Elsevier Inc. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Gene expression associated with vegetative incompatibility in Amylostereum areolatum.
Next Document: Triacylglycerol catabolism in the prawn Macrobrachium borellii (Crustacea: Palaemoniade).