Document Detail

Digestion and deposition of individual fatty acids in growing-finishing pigs fed diets containing either beef tallow or sunflower oil.
MedLine Citation:
PMID:  18662360     Owner:  NLM     Status:  MEDLINE    
The apparent digestibility and deposition in carcass of individual dietary fatty acids (FA) were determined in growing-finishing pigs fed diets containing either beef tallow or sunflower oil. The beef tallow was rich in saturated FA (SFA) and the sunflower oil had a high content of polyunsaturated FA (PUFA). A total of 39 barrows was used. The experimental diets contained 5% (w/w) of the variable fat source and were fed ad libitum. The dietary fat type had no effect (p > 0.05) on growth performance, even though the apparent digestibilities of crude fat and crude protein were higher (p < 0.05) in the animals fed sunflower oil. The pigs fed the sunflower oil diet showed higher apparent digestibilities (p < 0.05) of the sum of SFA, monounsaturated FA (MUFA) and PUFA, but had a lower digestibility (p < 0.05) of stearic acid. The intakes of individual digestible FA were derived feed intake data, FA contents of the diets and the digestibility of individual FA. For the entire feeding period of 13 weeks, the ratio of deposition in carcass to intake of digestible FA was increased (p < 0.05) for palmitic and stearic acid in the pigs fed sunflower oil, but the ratios for oleic acid and linoleic acid were decreased (p < 0.001). In the pigs fed sunflower oil instead of beef tallow, the deposition:intake ratio was raised for the SFA (p < 0.001), but diminished for the MUFA (p < 0.05). The calculated minimum de novo synthesis of SFA was increased (p < 0.05) and that of MUFA decreased (p < 0.05) in the pigs fed sunflower oil. It is concluded that the feeding of a diet with sunflower oil instead of beef tallow improved apparent digestibility of SFA, MUFA and PUFA, increased the deposition:digestible intake ratio for SFA, but lowered that for MUFA and PUFA.
J Mitchaothai; H Everts; C Yuangklang; S Wittayakun; K Vasupen; S Wongsuthavas; P Srenanul; R Hovenier; A C Beynen
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2007-11-08
Journal Detail:
Title:  Journal of animal physiology and animal nutrition     Volume:  92     ISSN:  1439-0396     ISO Abbreviation:  J Anim Physiol Anim Nutr (Berl)     Publication Date:  2008 Aug 
Date Detail:
Created Date:  2008-07-29     Completed Date:  2008-10-17     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101126979     Medline TA:  J Anim Physiol Anim Nutr (Berl)     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  502-10     Citation Subset:  IM    
Department of Clinic for Swine, Faculty of Veterinary Medicine, Mahanakorn University of Technology, Nong-Chok, Bangkok, Thailand.
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MeSH Terms
Adipose Tissue / chemistry,  metabolism*
Body Composition / physiology
Dietary Fats / administration & dosage*,  metabolism
Dietary Fats, Unsaturated / administration & dosage,  metabolism
Energy Intake / physiology
Fatty Acids / biosynthesis,  metabolism*
Fatty Acids, Monounsaturated / metabolism
Fatty Acids, Unsaturated / metabolism
Lipid Metabolism / physiology
Plant Oils
Random Allocation
Swine / growth & development*,  metabolism*
Reg. No./Substance:
0/Dietary Fats; 0/Dietary Fats, Unsaturated; 0/Fats; 0/Fatty Acids; 0/Fatty Acids, Monounsaturated; 0/Fatty Acids, Unsaturated; 0/Plant Oils; 61789-97-7/tallow; 8001-21-6/sunflower seed oil

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