| Influence of ewe feeding systems on fatty acid composition of suckling lambs. | |
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MedLine Citation:
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PMID: 22060979 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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The main objective of this study was to evaluate the effects of ewe dietary treatments on the intramuscular fatty acid composition of suckling lambs. Twenty-four pregnant Italian Merino ewes were divided into two equal groups. One group (pasture-fed group) was allowed to graze a natural pasture and the other group (stall-fed group) was penned indoors and fed with hay and concentrate. After lambing, all ewes stayed with their respective lambs for the whole experimental period. Lambs were slaughtered at 100 days of age with an average live weight of 20kg. Fatty acid profiles of milk and lamb meat (longissimus lumborum muscle) were analysed. Intramuscular fat from pasture-fed lambs showed higher (P<0.001) proportions of polyunsaturated fatty acids. The percentage of lauric (C12:0; P<0.05), palmitic (C16.0; P<0.001) and oleic (C18.1; P<0.001) fatty acids were higher in the intramuscular fat from stall-fed lambs, whereas pasture-fed lambs showed greater proportions of linolenic (C18:3; P<0.001), eicosapentaenoic (C20:5; P<0.001) and docosapentaenoic (C22:5; P<0.05) fatty acids. Moreover, the intramuscular fat from pasture-fed lambs displayed a higher (P<0.001) PUFA/SFA ratio, and a lower (p<0.001) n-6/n-3 ratio. The conjugated linoleic acid (CLA) tended to be higher (P=0.07) in the intramuscular fat from pasture-fed lambs. This study confirmed that pasture enhanced the unsaturated fatty acid profile of intramuscular fat in lambs including n-3 fatty acids. |
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Authors:
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M Scerra; P Caparra; F Foti; V Galofaro; M C Sinatra; V Scerra |
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Publication Detail:
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Type: Journal Article Date: 2007-04-06 |
Journal Detail:
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Title: Meat science Volume: 76 ISSN: 0309-1740 ISO Abbreviation: Meat Sci. Publication Date: 2007 Jul |
Date Detail:
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Created Date: 2011-11-08 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101160862 Medline TA: Meat Sci Country: England |
Other Details:
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Languages: eng Pagination: 390-4 Citation Subset: - |
Affiliation:
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Dipartimento di Scienze e Tecnologie Agro-forestali e Ambientali, Università Mediterranea di Reggio Calabria, Piazza S. Francesco, 7 - 89061 Gallina, Reggio Calabria, Italy. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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