scholarly journals Concentration of three branched-chain fatty acids in adipose tissue does not affect meat sensory traits in crossbred and purebred German "Merinolandschaf" lambs

2015 ◽  
Vol 58 (1) ◽  
pp. 159-163 ◽  
Author(s):  
K. F. Schiller ◽  
S. Preuss ◽  
S. Kaffarnik ◽  
W. Vetter ◽  
M. Rodehutscord ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Adipose Tissue ◽  
Subcutaneous Adipose Tissue ◽  
Consumer Acceptance ◽  
Tissue Samples ◽  
Branched Chain Fatty Acids ◽  
Other Substances ◽  
Branched Chain ◽  
Subcutaneous Adipose ◽  
Chain Fatty Acids

Abstract. Intense sheep odour and flavour in lamb is often associated with lower consumer acceptance. Branched-chain fatty acids (BCFAs) are suggested as possible reasons. Therefore, muscle and subcutaneous adipose tissue samples of 98 lamb chops were analysed for three BCFAs (4-methyloctanoic, 4-ethyloctanoic and 4-methylnonanoic fatty acid). Samples were derived from a previous study, in which lambs were raised and fattened under intensive conditions and tested for sensory quality. BCFA contents of fat extracts from muscle tissue were very low and quantification was not possible. In subcutaneous adipose tissue different concentrations of BCFA and differences between crosses were detected. The sex of lambs had a significant influence. The BCFA correlations were significant, while correlations between BCFA of adipose tissue and sensory traits were not significant. Therefore, it seems likely that BCFA concentrations were too low and/or other substances are involved in causing the lamb flavour detected through sensory analysis.

scholarly journals Differences in the proportions of branched-chain fatty acids in subcutaneous triacylglycerols of barley-fed ruminants

1978 ◽  
Vol 40 (1) ◽  
pp. 29-33 ◽  
Author(s):  
W. R. H. Duncan ◽  
G. A. Garton
Keyword(s):  
Fatty Acids ◽  
Adipose Tissue ◽  
Cervus Elaphus ◽  
Subcutaneous Adipose Tissue ◽  
Red Deer ◽  
Sheep And Goats ◽  
Branched Chain Fatty Acids ◽  
Branched Chain ◽  
Subcutaneous Adipose ◽  
Chain Fatty Acids

1. The fatty acids of the triacylglycerols of subcutaneous adipose tissue of cattle, sheep, goats and red deer (Cervus elaphus) which consumed either herbage or a barley-rich diet were analysed for their content of branched-chain components.2. Whereas the consumption of the barley-rich diet by sheep and goats was associated with the occurrence of relatively high proportions of branched-chain fatty acids, it was not in cattle and red deer.

scholarly journals Cobalt-vitamin B12 deficiency causes accumulation of odd- numbered, branched-chain fatty acids in the tissues of sheep

1994 ◽  
Vol 71 (1) ◽  
pp. 67-76 ◽  
Author(s):  
D. G. Kennedy ◽  
S. Kennedy ◽  
W. J. Blanchflower ◽  
J. M Scott ◽  
D. G. Weir ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Vitamin B12 Deficiency ◽  
Vitamin B ◽  
Plasma Vitamin ◽  
Tissue Samples ◽  
Value Analysis ◽  
Branched Chain Fatty Acids ◽  
B12 Deficiency ◽  
Branched Chain ◽  
Chain Fatty Acids

Nine 5-month-old lambs were randomly allocated to two groups and were fed on either a Co-deficient whole-barley diet (n 5), or the same diet supplemented with Co (n 4). The lambs were fed on their respective diets for 28 weeks. Plasma vitamin B12 concentrations fell below the lower limit of normality after 6 weeks, and plasma methylmalonic acid (MMA) concentrations rose above the upper limit of normality after 10 weeks. However, plasma MMA concentrations fell to near normal levels towards the end of the experiment suggesting that diagnosis of more severe Co deficiency based on determination of plasma MMA concentrations may be of limited value. Analysis of tissue samples collected at slaughter revealed a marked reduction in the vitamin B12 concentration and the activity of methylmalonyl-CoA mutase (EC 5.4.99.2) in the tissues taken from the Co-deficient sheep, by comparison with the controls. Although tissue concentrations of MMA in the Co-deficient animals were not significantly different from those of the controls, we did detect increased concentrations of branched-chain fatty acids. This suggested that misincorporation of MMA, but not propionic acid, into fatty acids had occurred. The Co-deficient lambs did not develop any neurological signs, suggesting that accumulation of branched-chain fatty acids may not be involved in the development of neurological lesions.

scholarly journals Adipose tissue monomethyl branched-chain fatty acids and insulin sensitivity: Effects of obesity and weight loss

Obesity ◽  
2014 ◽  
Vol 23 (2) ◽  
pp. 329-334 ◽  
Author(s):  
Xiong Su ◽  
Faidon Magkos ◽  
Dequan Zhou ◽  
J. Christopher Eagon ◽  
Elisa Fabbrini ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Weight Loss ◽  
Adipose Tissue ◽  
Insulin Sensitivity ◽  
Branched Chain Fatty Acids ◽  
Branched Chain ◽  
Chain Fatty Acids

Biosynthesis of Branched-Chain Fatty Acids by Preparations from Bovine Adipose Tissue

1978 ◽  
Vol 6 (6) ◽  
pp. 1157-1158 ◽  
Author(s):  
KLAUS W. J. WAHLE ◽  
SANDRA M. PATERSON ◽  
G. ALAN GARTON
Keyword(s):  
Fatty Acids ◽  
Adipose Tissue ◽  
Branched Chain Fatty Acids ◽  
Branched Chain ◽  
Chain Fatty Acids
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