Document Detail


Differences in sheep and goats milk fatty acid profile between conventional and organic farming systems.
MedLine Citation:
PMID:  20482951     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The objective of this study was to investigate whether there is a difference in chemical composition and particularly in fatty acid (FA) profile, with emphasis on cis-9, trans-11 CLA, of milk obtained from conventional and organic dairy sheep and goats farms under the farming conditions practiced in Greece. Four dairy sheep and four dairy goat farms, representing common conventional production systems and another four dairy sheep and four dairy goat farms, organically certified, representing organic production and feeding systems were selected from all over Greece. One hundred and sixty two individual milk samples were collected from those farms in January-February 2009, about three months after parturition. The milk samples were analyzed for their main chemical constituents and their FA profile. The results showed that the production system affected milk chemical composition: in particular fat content was lower in the organic sheep and goats milk compared with the corresponding conventional. Milk from organic sheep had higher content in MUFA, PUFA, alpha-LNA, cis-9, trans-11 CLA, and omega-3 FA, whereas in milk from organic goats alpha-LNA and omega-3 FA content was higher than that in conventional one. These differences are, mainly, attributed to different feeding practices used by the two production systems. The results of this study show that the organic milk produced under the farming conditions practiced in Greece has higher nutritional value, due to its FA profile, compared with the respective conventional milk.
Authors:
Eleni Tsiplakou; Vaios Kotrotsios; Ioannis Hadjigeorgiou; George Zervas
Publication Detail:
Type:  Comparative Study; Journal Article     Date:  2010-05-20
Journal Detail:
Title:  The Journal of dairy research     Volume:  77     ISSN:  1469-7629     ISO Abbreviation:  J. Dairy Res.     Publication Date:  2010 Aug 
Date Detail:
Created Date:  2010-06-25     Completed Date:  2010-10-01     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  2985125R     Medline TA:  J Dairy Res     Country:  England    
Other Details:
Languages:  eng     Pagination:  343-9     Citation Subset:  IM    
Affiliation:
Department of Nutritional Physiology and Feeding, Agricultural University of Athens, Iera Odos 75, GR-11855, Athens, Greece. eltsiplakou@aua.gr
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MeSH Terms
Descriptor/Qualifier:
Animal Husbandry / standards
Animals
Fatty Acids / analysis*
Fatty Acids, Unsaturated / analysis
Fatty Acids, Volatile / analysis
Female
Goats
Greece
Health Food / analysis*
Linoleic Acids, Conjugated / analysis
Milk / chemistry*,  standards
Sheep
Chemical
Reg. No./Substance:
0/Fatty Acids; 0/Fatty Acids, Unsaturated; 0/Fatty Acids, Volatile; 0/Linoleic Acids, Conjugated; 0/cis-9, trans-11-conjugated linoleic acid

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