Hopkins et al. (2014) also found a significant increase in TBARS
when lambs were supplemented with similar type of algae at 2% but
fed in a grain based concentrate ration and the authors reported that
the muscle vitamin E concentration (1.27 versus 1.64 mg vitamin E/kg
muscle for with and without algae ration) was not adequate to prevent
lipid oxidation when EPA + DHA was enriched in the muscle LL. In a
previous study (Ponnampalam et al., 2014b) it has been shown that
when the vitamin E concentration of muscle is lower than 2.95 mg/kg
in LL aged for 4 weeks under refrigeration, the lipid oxidation in muscles
will be increased as the PUFA concentration in muscle systems increases. Thus the differences in TBARS values in the current experiment could be due to an insufficient concentration of vitamin E in the muscle
to prevent lipid oxidation of long chain n−3 fatty acids (EPA + DHA) in
the LL during retail display.