Document Detail

Food hoarding is increased by pregnancy, lactation, and food deprivation in Siberian hamsters.
MedLine Citation:
PMID:  9038999     Owner:  NLM     Status:  MEDLINE    
Food hoarding by male Siberian hamsters (Phodopus sungorus sungorus) is increased only when body mass (fat) is decreased. Pregnancy and lactation result in marked decreases in lipid reserves (approximately 50%) in female Siberian hamsters. Therefore, the present experiments addressed the following questions: 1) Is food hoarding increased after food deprivation in female Siberian hamsters? and 2) How do food hoarding and food intake change during pregnancy, lactation, and their combination? During measurements in a simulated burrow system food hoarding increased after a 32-h fast (approximately 2- to 3-fold) to a level similar to that seen previously in males and was markedly increased during pregnancy (approximately 12- to 18-fold, lactation, and concurrent pregnancy and lactation (approximately 10- to 25-fold for each of the latter 2 conditions). Postfast food intake was not different from prefast baseline measures. Food intake was increased only during the last few days of pregnancy and was elevated throughout lactation. These impressive increases in the level of food hoarding during pregnancy, lactation and their combination suggest that food hoarding may play an important role in supplying easily accessible energy to subserve these reproductive conditions.
T J Bartness
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  The American journal of physiology     Volume:  272     ISSN:  0002-9513     ISO Abbreviation:  Am. J. Physiol.     Publication Date:  1997 Jan 
Date Detail:
Created Date:  1997-03-31     Completed Date:  1997-03-31     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  0370511     Medline TA:  Am J Physiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  R118-25     Citation Subset:  IM    
Department of Psychology, Georgia State University, Atlanta 30303, USA.
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MeSH Terms
Animal Feed*
Behavior, Animal*
Feeding Behavior*
Food Deprivation / physiology*
Lactation / physiology*
Phodopus / physiology*
Pregnancy, Animal / physiology*
Grant Support

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