Document Detail

Gene expression and protein content in relation to intramuscular fat content in Muscovy and Pekin ducks.
MedLine Citation:
PMID:  19834090     Owner:  NLM     Status:  MEDLINE    
Independent of their nutritional condition, Pekin ducks always exhibit higher i.m. fat content than Muscovy ducks. To understand this difference between species, the expression level of genes involved in lipid metabolism was analyzed in the pectoralis major muscle of Pekin and Muscovy ducks ad libitum-fed or overfed. The lipoprotein lipase (LPL) gene expression was not different between species and not influenced by overfeeding. The protein content for LPL was higher in Pekin ducks than in Muscovy ducks when birds were ad libitum-fed, whereas in overfed ducks, we found no difference between species. Adipocyte fatty acid-binding protein (A-FABP) gene expression and protein content were higher in Pekin ducks than in Muscovy ducks for each nutritional condition (suggesting a higher intracellular transport within i.m. adipocytes of fatty acids mainly provided by liver for this species). Overfeeding did not affect the expression of genes involved in oxidation [carnitine palmitoyl transferase 1A (CPT1A), cytochrome-c oxidase 4 (COX4), succinyl-coenzyme A:3-ketoacid coenzyme A transferase (SCOT)] but increased the expression of fatty acid synthase (FAS) involved in lipogenesis. For all nutritional conditions, Pekin duck exhibited higher expression levels of CPT1A, COX4, SCOT, and FAS than Muscovy ducks. Results for mRNA SCOT suggested that the muscles of Pekin ducks use ketone bodies as an energy source. In conclusion, i.m. lipogenesis could contribute to the i.m. fat, particularly in Pekin ducks.
G Saez; S Davail; G Gentès; J F Hocquette; T Jourdan; P Degrace; E Baéza
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Poultry science     Volume:  88     ISSN:  0032-5791     ISO Abbreviation:  Poult. Sci.     Publication Date:  2009 Nov 
Date Detail:
Created Date:  2009-10-16     Completed Date:  2009-12-11     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401150     Medline TA:  Poult Sci     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2382-91     Citation Subset:  IM    
Institut Pluridisciplinaire de Recherche sur l'Environnement et les Matériaux-Equipe Environnement et Microbiologie, L'institut Universitaire de Technologie des Pays de l'Adour, F-40004 Mont de Marsan Cedex, France.
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MeSH Terms
Adipose Tissue / metabolism*
Ducks / physiology*
Fatty Acid-Binding Proteins / genetics,  metabolism
Gene Expression Regulation / physiology*
Lipoprotein Lipase / genetics,  metabolism
Malonyl Coenzyme A / metabolism
Muscle Proteins / genetics,  metabolism*
Muscle, Skeletal / metabolism
RNA, Messenger / genetics,  metabolism
Reg. No./Substance:
0/Fatty Acid-Binding Proteins; 0/Muscle Proteins; 0/RNA, Messenger; 524-14-1/Malonyl Coenzyme A; EC Lipase

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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