Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.5/7071
Título: Does the fat tailed Damara ovine breed have a distinct lipid metabolism leading to a high concentration of branched chain fatty acids in tissues?
Autor: Alves, Susana P.
Bessa, Rui J. B.
Quaresma, Mário A. G.
Kilminster, Tanya
Scanlon, Tim
Oldham, Chris
Milton, John
Greeff, Johan
Almeida, André M.
Palavras-chave: Adipose tissue
Animal husbandry
Australia
Diet
Fatty acids
Gastrocnemius muscles
Propionates
Sheep
Data: 18-Out-2013
Editora: Wolf-Hagen Schunck, Max Delbrueck Center for Molecular Medicine, Germany
Citação: Alves, S.P., et al. (2013). Does the fat tailed Damara ovine breed have a distinct lipid metabolism leading to a high concentration of branched chain fatty acids in tissues? PLoS ONE, 8(10), e77313, 1-9. doi:10.1371/journal.pone.0077313
Resumo: Fat tailed sheep breeds are known for their adaptation to nutritional stress, among other harsh production conditions. Damara sheep, native to Southern Africa, have recently been exported to other areas of the world, particularly Australia, aiming to produce lamb in semi-arid regions. Damaras have a unique hanging fat tail, a fat depot able to be mobilized under nutritional stress. In this article we perform an in-depth characterization of the fatty acid profiles of the fat tail in underfed and control Damara rams. Profiles were very similar between experimental groups, with the exception of palmitic acid (16:0) that was lower (P = 0.014) in underfed animals. However, the most striking result was the very high proportions of non-terminal branched chain fatty acids found in the fat tail adipose tissue, as well as the gastrocnemius muscle of Damara rams. The muscle of Dorper and Merino rams used in the same experiment did not present non-terminal branched chain fatty acids, suggesting that Damara rams have a unique lipid metabolism. Herein, we interpret this trait relating it to a higher ability of Damara sheep to digest fibrous fodder and to putative differences in the propionate metabolism by comparison to other sheep breeds.
Descrição: Articles in International Journals
Peer review: yes
URI: http://hdl.handle.net/10400.5/7071
DOI: 10.1371/journal.pone.0077313
Versão do Editor: http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0077313
Aparece nas colecções:DPASA - Artigos de revista
DMF - Artigos de revista
CIISA - Artigos em revistas internacionais



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