"There is an urgent need to replace fish oil (FO) and meal (FM) from wild stocks in aquaculture diets with more sustainable alternatives, being vegetable oils (VO) the primary candidates. However, these oils are devoid of essential n-3 long-chain PUFA (LC-PUFA) and can be particularly rich in n-6 PUFA, leading to imbalances in the n-6/n-3 ratio. This situation is similar to what is presently obser ...