Product-type taxonomy differentiates vaccines by Bacterin, Live Attenuated, and Subunit/Recombinant formulations, each mapping to discrete production technologies, cold-chain demands, and end-user risk tolerances. Bacterins—formalin-inactivated Pasteurella multocida serotype B:2 or E:2 adjuvanted suspensions—remain the workhorse, accounting for roughly half the market owing to low cost, established potency, and regulatory familiarity across endemic countries. Live attenuated strains (e.g., 34F) confer longer-lasting immunity with a single dose, making them attractive for extensive pastoral systems, yet cold-chain dependence and residual-virulence concerns cap their share at ~30 %. Subunit/recombinant platforms, still nascent, are gaining analytical attention because they eliminate the need for pathogen cultivation, reduce batch-to-batch variation, and align with WOAH-aligned DIVA (Differentiate Infected from Vaccinated Animals) protocols; their premium pricing currently restricts uptake to export-oriented farms and reference laboratories, but patent expiry and platform licensing are projected to lift the segment’s CAGR above 8 % through 2030.