Effect of Soybean Oil Supplementation on the Contents of Plasma Cholesterol and Cis9, trans11-CLA of the Fat Tissues in Sheep

  • Choi, S.H. (Department of Animal Science, Chungbuk National University) ;
  • Wang, J.H. (College of Bio and Food Technology, Dalian Institute of Light Industry) ;
  • Kim, Y.J. (Department of Food and Biotechnology, Korea University) ;
  • Oh, Y.K. (National Livestock Research Institute, Suwon, RDA) ;
  • Song, M.K. (Department of Animal Science, Chungbuk National University)
  • Received : 2005.08.18
  • Accepted : 2006.01.31
  • Published : 2006.05.01


A feeding trial was conducted with 10 sheep for 12 weeks to examine the effect of soybean oil (SBO) supplementation on long-chain fatty acids composition, especially cis9,trans11-conjugated linoleic acid (c9,t11-CLA) in fat tissues. Sheep were fed either a SBO supplemented diet (5%, DM basis) or a control diet without SBO. Chopped rye grass hay was fed as roughage. Concomitant increases in contents of total cholesterol (T-C) and HDL-cholesterol (HDL-C) in the plasma of sheep were observed from the SBO supplementation. The supplementation of SBO reduced (p<0.05) the proportions of $C_{16:1}$, $C_{17:0}$ and $C_{17:1}$ but increased (p<0.05) the proportions of $C_{18:0}$ and octadecenoic acid (t11-$C_{18:1}$) in the intramuscular fat. The $C_{18:0}$ proportion only in the subcutaneous fat was increased (p<0.05) by the SBO supplementation. The SBO supplementation slightly increased CLA proportion in the intramuscular fat and subcutaneous fat.


Supported by : Chungbuk National University


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