Fish oil is extracted from the tissues of fatty fish, such as salmon, mackerel, or sardines. It is rich in omega-3 fatty acids, including eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). In the animal health industry, fish oil is commonly used as a dietary supplement for livestock, pets, and aquaculture. It helps reduce inflammation, supports cardiovascular health, enhances immune function, and promotes healthy skin and coat conditions.