 The use of dietary supplements can improve the shelf life of farmed SBT flesh.Results of a study by SARDI (South Australian Research and Development Institute) indicated that feeding a diet approximately 10 times higher in dietary antioxidants raised levels of vitamin E and vitamin C, but not selenium, in tuna flesh and increased the shelf life of tuna.This is important as the frozen baitfish diets are likely to be lower in antioxidant vitamins than the wild tuna diet.