Document Detail

Relationship of plasma lipid concentrations to fat deposition in pigs.
MedLine Citation:
PMID:  4030514     Owner:  NLM     Status:  MEDLINE    
The time course for changes in plasma free fatty acid and triglyceride concentration after removal of feed was established. Genetically obese and lean lines of pigs, two types of crossbred female pigs and a group of male pigs were used to establish the relationship between circulating free fatty acid or triglyceride concentrations and adiposity. Pigs were weighed, ultrasonically probed for backfat thickness, bled in a fed state and again in the fasted state. Plasma was analyzed for free fatty acid and triglyceride concentration. Fasting increased plasma free fatty acid, but only slightly increased triglyceride concentrations. There were several significant correlations between backfat thickness and plasma lipid concentrations; however, the low magnitude and inconsistency of these correlations precludes use of plasma lipid concentrations as indicators of adiposity in swine. Fasted obese pigs had lower plasma fatty acid concentrations than lean pigs at 2, 4 and 6 mo of age. If these plasma levels represent in vivo mobilization of fat, the results probably contrast with previously reported in vitro results wherein adipose tissue from obese pigs had lipolytic rates expressed on a cellular basis that were equal to or greater than those form lean pigs.
H J Mersmann; M D MacNeil
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Journal of animal science     Volume:  61     ISSN:  0021-8812     ISO Abbreviation:  J. Anim. Sci.     Publication Date:  1985 Jul 
Date Detail:
Created Date:  1985-10-07     Completed Date:  1985-10-07     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8003002     Medline TA:  J Anim Sci     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  122-8     Citation Subset:  IM    
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MeSH Terms
Adipose Tissue / metabolism*
Body Weight
Fatty Acids, Nonesterified / blood
Lipids / blood*
Swine / metabolism*
Triglycerides / blood
Reg. No./Substance:
0/Fatty Acids, Nonesterified; 0/Lipids; 0/Triglycerides

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