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Sources of variation of health claimable long chain omega-3 fatty acids in meat from Australian lamb slaughtered at similar weights.
MedLine Citation:
PMID:  23265412     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The sources of variation of health claimable omega-3 polyunsaturated fatty acids (eicosapentaenoic acid, EPA+docosahexaenoic acid, DHA) in 2000 Australian lambs were investigated using 98 sires (Merino, maternal or terminal breeds) that were mated to about 5000 Merino or crossbred (Border Leicester×Merino) ewes. Pasture was supplemented with feedlot pellets, grains or hay as necessary, when the availability of quality green pasture was limited. Lambs were grown at 8 sites across Australia and when slaughtered the longissimus lumborum muscle was collected. Site and kills within sites were the major sources of variation for health claimable fatty acids. These environmental effects are likely to be driven by dietary background. The sire variance differed from about one twentieth to a half of the residual lamb within dam variation, depending on site and kill. This is the first comprehensive study to investigate on-farm sources of variation of long chain omega-3 polyunsaturated fatty acid content of lamb meat.
Authors:
Eric N Ponnampalam; Kym L Butler; Kelly M Pearce; Suzanne I Mortimer; David W Pethick; Alex J Ball; David L Hopkins
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-27
Journal Detail:
Title:  Meat science     Volume:  -     ISSN:  1873-4138     ISO Abbreviation:  Meat Sci.     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-12-25     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101160862     Medline TA:  Meat Sci     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier Ltd. All rights reserved.
Affiliation:
Australian Sheep Industry Cooperative Research Centre, Armidale, NSW 2350, Australia; Livestock Production Sciences, Department of Primary Industries, Werribee, Vic. 3030, Australia. Electronic address: eric.ponnampalam@dpi.vic.gov.au.
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