The Defatted Fish Meal segmentation by application distinguishes four primary end‑use categories that collectively shape market dynamics. Aquaculture feed accounts for the largest share, roughly 45 % of total volume, driven by the protein‑dense requirements of fin‑fish and shrimp production. Pet food represents about 30 %, reflecting formulators’ preference for high‑quality, low‑fat protein sources to meet nutritional standards for dogs and cats. Livestock feed, encompassing poultry, swine, and ruminants, contributes approximately 20 %, where the reduced fat content of defatted fish meal improves feed handling and storage stability. The residual Other segment, estimated at 5 %, includes niche applications such as fertilizer additives and specialty industrial formulations. Each application segment influences overall market size by dictating demand elasticity, pricing power, and supply chain logistics, thereby establishing a clear market taxonomy that informs strategic positioning and investment decisions.