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Meat Sci. 1988;24(4):249-60. doi: 10.1016/0309-1740(88)90038-1.

Effect of dietary high-oleic sunflower oil on pork carcass traits and fatty acid profiles of raw tissues.

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Department of Animal Science, Texas A & M University, College Station, Texas 77843, USA.


Ten gilts were randomly assigned to either a control sorghum-soybean diet or a similar diet containing 12% high-oleic sunflower oil (HOSO). No significant differences between the two groups were found in feedlot performance, carcass muscling and marbling score, but animals fed the HOSO diet had softer carcass fat and oilier carcasses than those fed the control diet. The ratio of monounsaturated fatty acids to saturated fatty acids (M/S) for subcutaneous fat increased from 1·58 in the control group to 3·76 in the HOSO group (138% increase); the M/S ratio for muscles (longissimus dorsi, semimembranosus and semitendinosus) increased from 0·96-1·19 to 1·84-1·88 (73% increase on an average). The percentage of polyunsaturated fatty acids in both adipose or muscle tissue was generally similar between the two diet treatments.

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