Document Detail


Effect of diet, sex and age on fatty acid metabolism in broiler chickens: n-3 and n-6 PUFA.
MedLine Citation:
PMID:  20187998     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The PUFA metabolism in broiler chicken was studied through the whole body fatty acid balance method. Four dietary lipid sources (palm fat, Palm; soyabean oil, Soya; linseed oil, Lin; fish oil, Fish) were added at 3 % to a basal diet containing 5 % palm fat. Diets were fed to female and male birds from day 1 to either day 21 or day 42 of age. Birds fed the Lin diet showed a significantly higher 18 : 2n-6 accumulation compared with the other diets (85.2 v. 73.6 % of net intake), whereas diet did not affect 18 : 3n-3 accumulation (mean 63 % of net intake). Bioconversion of 18 : 2n-6 significantly decreased in the order Palm>Lin>Soya>Fish (4.7, 3.9, 3.4 and 1 % of net intake, respectively). The 18 : 3n-3 bioconversion on the Palm and Soya diets was similar and significantly higher than in broilers on the Lin diet (9.1 v. 5.8 % of net intake). The beta-oxidation of 18 : 2n-6 was significantly lower on the Lin diet than on the other diets (10.8 v. 23.3 % of net intake), whereas beta-oxidation of 18 : 3n-3 was significantly higher on the Fish diet than on the other diets (41.5 v. 27.3 % of net intake). Feeding fish oil suppressed apparent elongase and desaturase activity, whereas a higher dietary supply of 18 : 3n-3 and 18 : 2n-6 enhanced apparent elongation and desaturation activity on the PUFA involved in the n-3 and n-6 pathway, respectively. Accumulation of 18 : 2n-6 and 18 : 3n-3 increased and beta-oxidation decreased with age. Sex had a marginal effect on the PUFA metabolism.
Authors:
R Poureslami; K Raes; G M Turchini; G Huyghebaert; S De Smet
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Publication Detail:
Type:  Journal Article; Randomized Controlled Trial     Date:  2010-03-01
Journal Detail:
Title:  The British journal of nutrition     Volume:  104     ISSN:  1475-2662     ISO Abbreviation:  Br. J. Nutr.     Publication Date:  2010 Jul 
Date Detail:
Created Date:  2010-07-14     Completed Date:  2010-08-09     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0372547     Medline TA:  Br J Nutr     Country:  England    
Other Details:
Languages:  eng     Pagination:  189-97     Citation Subset:  IM    
Affiliation:
Laboratory for Animal Nutrition and Animal Product Quality, Department of Animal Production, Ghent University, Proefhoevestraat 10, 9090 Melle, Belgium.
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MeSH Terms
Descriptor/Qualifier:
Age Factors
Animal Feed / analysis
Animal Nutritional Physiological Phenomena
Animals
Chickens / metabolism*
Diet / veterinary*
Dietary Fats, Unsaturated / administration & dosage,  metabolism*
Digestion
Fatty Acids, Omega-3 / metabolism*
Fatty Acids, Omega-6 / metabolism*
Female
Male
Random Allocation
Sex Factors
Chemical
Reg. No./Substance:
0/Dietary Fats, Unsaturated; 0/Fatty Acids, Omega-3; 0/Fatty Acids, Omega-6

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