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Abstract
The fatty acid (FA) composition of muscle and adipose tissue was investigated in intensively fed beef cattle. Heifers had more intramuscular fat with higher proportion of monounsaturated FA, while bulls had higher proportion of polyunsaturated FA (PUFA). The same was found in adipose tissue accompanied by higher proportion of saturated FA (SFA) in bulls. The PUFA/SFA ratio was close to recommendation for human diet only in bulls’ muscle, while n-6/n-3 PUFA ratios were generally higher than recommended. The observed FA variability between sexes was due to the differences in fatness. To improve the nutritional value, the n-3 PUFA in beef should be increased.
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