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Published online by Cambridge University Press: 20 November 2017
In pigs, dietary fatty acids influence the composition of meat lipids. When diets high in unsaturated fatty acids are fed, meat quality may be adversely affected due to the susceptibility of unsaturated fatty acids to oxidation. Rapeseed oil is rich in C18:ln9, C18:2n6 and C18:3n3 (57.1, 21.4 and 12.5 g/100g fatty acid respectively) and the inclusion of full-fat rapeseed (FFR) in pig diets may be valuable in manipulating pig meat fatty acid profile in order to increase human dietary intake of n3-polyunsaturated fatty acids. However, increasing the levels of FFR in pig diets has been shown to lead to an increase in carcass fat softness and it is likely that the meat lipids may be more prone to oxidative instability than that from pigs fed diets containing more saturated fatty acids. Since the protective role of vitamin E in lipid peroxidation is well established (Asghar et al, 1991; Monahan et al, 1993), a study was conducted to examine the influence of FFR with or without supplemental vitamin E on growth performance, carcass characteristics and meat storage quality in pigs.