Short Communication: Effect of Stearoyl-Coenzyme A Desaturase Polymorphism on Fatty Acid Composition of Milk

Compared to meat from other animals lamb contains high levels of saturated fat, particularly stearic acid which comprises 18% of the total fatty acids (Enser et al, 1996). This stearic acid can be desaturated in the tissue by stearoyl coenzyme A desaturase (SCD) to produce oleic acid. In sheep SCD is produced from a single gene and the levels of SCD mRNA in the tissue correlate well with oleic acid (Ward et al, 1998, Barber et al, 2000) suggesting that an upregulation of SCD activity may increase the relative proportions of unsaturated and saturated fatty acids and so significantly improve the nutritional quality of sheep meat. Our recent studies have shown that insulin increases SCD mRNA levels and monounsaturated fatty acid synthesis in cultured ovine adipose tissue explants (Daniel et al, 2001). The present study was designed to investigate whether feeding a diet believed to manipulate SCD mRNA concentrations would significantly alter the fatty acid composition of lamb.

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Short communication: Within-day variation in fatty acid composition of milk from cows in an automatic milking system

Journal of Dairy Science ◽

10.3168/jds.2012-5815 ◽

2012 ◽

Vol 95 (10) ◽

pp. 5608-5611 ◽

Cited By ~ 7

Author(s):

M.K. Larsen ◽

M.R. Weisbjerg ◽

C.B. Kristensen ◽

G. Mortensen

Keyword(s):

Fatty Acid Composition ◽

Fatty Acid ◽

Acid Composition ◽

Short Communication ◽

Automatic Milking System ◽

Automatic Milking

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Analyse der Fettsäurenzusammensetzung des Rohfettes von Prüffutter für Schweine (Kurzmitteilung)

Archives Animal Breeding ◽

10.5194/aab-46-273-2003 ◽

2003 ◽

Vol 46 (3) ◽

pp. 273-276

Author(s):

S. Müller ◽

W. Reichardt ◽

H. Hartung ◽

B. Eckert

Keyword(s):

Fatty Acids ◽

Gas Chromatography ◽

Fatty Acid Composition ◽

Fatty Acid ◽

Polyunsaturated Fatty Acids ◽

Linolenic Acid ◽

Acid Composition ◽

Short Communication ◽

Performance Testing ◽

Paper Analysis

Abstract. Title of the paper: Analysis of the fatty acid composition of the raw fat from the feed of pigs which are examined to her performance (short communication) The raw fat of 14 examining feeds from 13 German performance testing centres for pigs was extracted 2001 and analysed for the fatty acid composition by means of gas chromatography. Besides a great variation of the raw fat content (s % = 42) was to state that with 14.4 g/kg feed on average the content of polyunsaturated fatty acids (PUFA) was high. Examinations of the raw fat of wheat, rye and barley showed that the high proportions in linoleic and linolenic acid are brought in the fattening rations primarily by the cereal components. A limitation of the PUFA proportions below 15 g/kg feed therefore doesn't seem to be practicable in the examining feed of performance testing centres for pigs. The additional variation in the fatty acid composition of examining feeds caused by added fats or oils should however be limited according to a better standardization.

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