Document Detail

Breed comparison of the fatty acid composition of muscle phospholipids in Jersey and Limousin cattle.
MedLine Citation:
PMID:  9535336     Owner:  NLM     Status:  MEDLINE    
We investigated the fatty acid composition of the phospholipid fraction of the shoulder muscle (triceps brachii) from Jersey and Limousin yearling steers, yearling heifers, and nonlactating cows. The aim was to study breed, sex, and age differences. Significant breed differences in some individual fatty acids were apparent between Jersey and Limousin cows. Limousin cows had more palmitate, vaccenate, arachidonate, and less gamma-linolenate and eicosapentanoate than Jersey cows. Age differences were significant: proportions of palmitate, stearate, and oleate decreased and linoleate, arachidonate, and total polyunsaturates increased with age. Most of the breed x age interactions were not significant. Also, phospholipids of Jersey and Limousin cows did not differ in total saturated, monounsaturated, and polyunsaturated fatty acids. Yearling data revealed significant sex differences in most of the fatty acids, including total monounsaturates and polyunsaturates. Yearling steers had more myristate, palmitoleate, stearate, and total monounsaturates and less linoleate, arachidonate, eicosapentanoate, and total polyunsaturates than heifers. Breed differences were also significant: Limousin yearlings had more di-homogamma-linolenate and erucate and less eicosapentanoate and nervonate than their Jersey counterparts. The sex x breed interaction was not significant for most of the fatty acids. These results imply that breed, age, and sex are important factors that influence the fatty acid composition of muscle phospholipids in cattle.
A E Malau-Aduli; B D Siebert; C D Bottema; W S Pitchford
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of animal science     Volume:  76     ISSN:  0021-8812     ISO Abbreviation:  J. Anim. Sci.     Publication Date:  1998 Mar 
Date Detail:
Created Date:  1998-05-14     Completed Date:  1998-05-14     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:  766-73     Citation Subset:  IM    
Department of Animal Science, University of Adelaide, Waite Agricultural Research Institute, Glen Osmond, S.A., Australia.
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MeSH Terms
Aging / metabolism*
Fatty Acids / analysis*
Muscle Development
Muscle, Skeletal / chemistry*,  growth & development
Phospholipids / analysis,  chemistry*,  metabolism
Species Specificity
Reg. No./Substance:
0/Fatty Acids; 0/Phospholipids

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