Types segmentation classifies hydrolyzed animal protein according to the source species and processing intensity, which directly influences functional properties and price points. The primary source categories are poultry, bovine, porcine, and marine (fish) proteins, each further divided into low‑degree and high‑degree hydrolysis based on peptide length distribution. Poultry‑derived hydrolysates, representing roughly 35 % of volume, are favored for their balanced amino‑acid profile and lower allergenicity, making them prevalent in pet and aquaculture feeds. Bovine‑derived products account for about 30 % and are valued for high lysine content, supporting growth‑focused livestock formulations. Porcine‑derived hydrolysates, contributing 20 % of market share, are commonly employed in functional food ingredients where flavor masking is critical. Marine‑derived hydrolysates, comprising the remaining 15 %, offer unique omega‑3 enriched peptides that are increasingly integrated into premium pet foods and nutraceuticals. Within each source, the degree of hydrolysis determines solubility, digestibility, and bioactivity, thereby shaping demand across end‑use applications and driving overall market valuation.