The Scientific World Journal / 2016 / Article / Tab 1 / Review Article
A Contribution of Beef to Human Health: A Review of the Role of the Animal Production Systems Table 1 Lipid content and fatty acid composition reported of beef muscle from steers (British and crossbred) finished in different and contrasting production systems.
Production system Reference Pasture Supplementation Feedlot IMF (%) 2.86 b 4.09 a 3.85 a [25 ] 4.96 4.52 [28 ] 2.83 [29 ] 0.98 b 1.30 a
[30 ] 2.80 b 4.40 a [31 ] 2.12 b 3.61 a [32 ] SFA (% total FA) 38.40 a 37.85 a 35.33 b [25 ] 46.61 45.80 [28 ] 43.1 [29 ] 38.76 39.27 [30 ] 48.80 a 45.10 b [31 ] 42.45 b 43.43 a [32 ] MUFA (% total FA) 37.74 b 40.89 a 40.77 a [25 ] 41.63 37.35 [28 ] 30.2 [29 ] 24.69 b 34.99 a [30 ] 42.50 b 46.20 a [31 ] 43.87 b 47.89 a [32 ] PUFA (% total FA) 7.95 a, b 7.50 b 9.31 a [25 ] 5.58 b 10.12 a [28 ] 8.73 [29 ] 28.99 a 19.06 b [30 ] 3.41 a 2.77 b [31 ] PUFA/SFA 0.21 b 0.20 b 0.27 a [25 ] 0.12 b 0.23 a [28 ] 0.20 [29 ] n-6/n-3 1.72 c 3.77 b 10.38 a [25 ] 2.47 b 5.50 a [28 ] 1.47 [29 ] 1.77 b 8.99 a [30 ] 2.78 b 13.60 a [31 ] 1.96 b 3.57 a [32 ] CLA (% total FA) 0.72 a 0.58 b 0.31 c [25 ] 0.33 [33 ]
IMF: intramuscular fat; SFA: saturated fatty acid; MUFA: monounsaturated fatty acid; PUFA: polyunsaturated fatty acid; CLA: conjugated linoleic acid. a, b, c mean values in row with different letters differ statistically ( ).