Effects of using olive tree (Olea europaea L.) derivatives as feed additives on growth efficiency, immunological response, and oxidative status in finfish: A Review

الملخص

The aquaculture sector has witnessed remarkable growth all over the world, but this sector faces the problem of scarcity and high prices of feed ingredients, especially fishmeal and fish oil, which are known for their importance in fish production and improving their health. This problem has prompted aquaculture nutrition specialists to search for available and less-cost feed alternatives and evaluate the possibility of using them in aquaculture nutrition. These alternative feeds that have been used to feed aquatic organisms include many types, including by-products resulting from the olive tree (Olea europaea L.), during the production of olives and olive oil, which include wastewater from olive presses, olive leaves, and olive pomace. Several studies have investigated the possibility of including these by-products from the olive tree in fish feed, depending on the type of by-products used and the species of fish produced. In this research, the pros and cons of using by-products of olive and olive oil production in feeding aquatic organisms were reviewed as a contribution to supporting and developing the field of aquaculture.