Towards Sustainable Aquafeeds: Complete Substitution of Fish Oil with Marine Microalga Schizochytrium sp. Improves Growth and Fatty Acid Deposition in Juvenile Nile Tilapia (Oreochromis niloticus)

“…In these aquafeeds, fish meal and fish oil are the main protein and oil contributors due to their high-quality amino acids and long-chain unsaturated fatty acids (UFAs) (Tacon & Metian, 2008). However, in recent years, the amount of fresh fish used for fish meal and fish oil has reached or approached its maximum sustainable production, causing a serious imbalance between the supply and the demand (Cashion, Manach, Zeller, & Pauly, 2017;Krisetherton, Grieger, & Etherton, 2009;Sarker et al, 2016). Moreover, such use of fish competes with its use in human food, and the prices of fish oil and fish meal are rising.…”