Document Detail

Fatty acid content in chicken thigh and breast as affected by dietary polyunsaturation level.
MedLine Citation:
PMID:  15285507     Owner:  NLM     Status:  MEDLINE    
One hundred ninety-two female broiler chickens were randomly distributed into 16 experimental treatments as a result of the combination of 4 levels of dietary polyunsaturated fatty acids (PUFA) (15, 34, 45, and 61 g/kg) and 4 levels of supplementation with alphatocopheryl acetate (alpha-TA) (0, 100, 200, and 400 mg/kg), to determine the modification of the amount and type of fatty acids (FA) deposited in raw and cooked chicken tissues. At 44 d, quantified FA of thighs and breasts were not affected by dietary supplementation with alpha-TA. Total FA content of breast was less than 15% of the total FA content of thigh. However, increasing the PUFA content of the diet by 46 g, from 15 to 61 g/kg, decreased total FA of thigh 17%, but did not affect FA content in breast meat. Monounsaturated fatty acid (MUFA) and saturated fatty acid (SFA) content of thigh (y) decreased linearly as the inclusion of dietary PUFA (x) increased (MUFA: y = 89.34 - 0.92x, R2 = 0.70; SFA: y = 53.81 - 0.43x, R2 = 0.57), whereas the relationship between PUFA content of feed (x) and thighs (y) was exponential (y = 92.03 92.03e(-00155x), R2 = 0.75). A similar response was observed in breast, with less variation and more incorporation of PUFA than thigh. Cooking of thigh meat led to a reduction in total FA content that affected SFA, MUFA, and PUFA in a similar proportion.
L Cortinas; C Villaverde; J Galobart; M D Baucells; R Codony; A C Barroeta
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Publication Detail:
Type:  Clinical Trial; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Poultry science     Volume:  83     ISSN:  0032-5791     ISO Abbreviation:  Poult. Sci.     Publication Date:  2004 Jul 
Date Detail:
Created Date:  2004-08-02     Completed Date:  2004-10-14     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0401150     Medline TA:  Poult Sci     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1155-64     Citation Subset:  IM    
Universitat Autonoma de Barcelona, Department of Animal and Food Science, Bellaterra, Spain.
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MeSH Terms
Dietary Fats, Unsaturated / administration & dosage*
Fatty Acids / analysis*
Fatty Acids, Monounsaturated / analysis
Fatty Acids, Unsaturated / administration & dosage*
Hot Temperature
Meat / analysis*
Muscle, Skeletal / chemistry*
Pectoralis Muscles / chemistry
alpha-Tocopherol / administration & dosage,  analogs & derivatives*
Reg. No./Substance:
0/Dietary Fats, Unsaturated; 0/Fatty Acids; 0/Fatty Acids, Monounsaturated; 0/Fatty Acids, Unsaturated; 1406-66-2/Tocopherols; 59-02-9/alpha-Tocopherol

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