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Asian-Australas J Anim Sci > Volume 19(5); 2006 > Article
Ruminant Nutrition and Forage Utilization
Asian-Australasian Journal of Animal Sciences 2006;19(5): 679-683.
DOI: https://doi.org/10.5713/ajas.2006.679    Published online March 29, 2006.
Effect of Soybean Oil Supplementation on the Contents of Plasma Cholesterol and Cis9, trans11-CLA of the Fat Tissues in Sheep
S. H. Choi, J. H. Wang, Y. J. Kim, Y. K. Oh, M. K. Song*
Correspondence:  M. K. Song,
Abstract
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 C16:1, C17:0 and C17:1 but increased (p<0.05) the proportions of C18:0 and octadecenoic acid (t11-C18:1) in the intramuscular fat. The C18:0 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.
Keywords: Soybean Oil; Fat Tissue; C9,t11-CLA; Cholesterol; t-FA; Sheep


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