ABSTRACTThe effects of different dietary oils and α‐tocopherol on the fatty acid composition of mitochondrial and microsomal lipids of broiler muscle and their lability to NADPH‐induced peroxidation were investigated. Fatty acid composition of both neutral lipids and phospholipids of mitochondria and microsomes was influenced by dietary oil composition. Supplementation of the diet with α‐tocopherol only appeared to increase the α‐tocophcrol concentration in the microsomal membranes in the dark meat. The rate of NADPH‐induced lipid peroxidation in microsomes and mitochondria was dependent primarily on the fatty acid composition of the membrane lipids, and, to a lesser extent, on the α‐toc
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