Fish oil is extracted from fish powder after the cooking stage, and due to its unsaturated fatty acids and omega-3, it plays a very important role in the health of human food. The obtained oil has a mild smell and its low level of unsaturated fatty acid makes the fish powder and oil more stable, which will have important effects on its growth and delicious taste in the aquaculture sector. As a rich source of protein, fish oil also plays a significant role in feeding livestock, poultry and aquatic animals. Fish oil, like fish powder, plays an important role in the animal breeding industry, especially aquatic animals, and increases growth, feed conversion ratio (FCR) and disease resistance.