Poultry multibiotics sales will expand through 2036, with dry at 40.0% of form sales, microbial at 33.0% within the source segment and broilers at 35.5% of the bird type category in 2026. The market was valued at USD 677.7 million in 2025 and is forecast to record a 9.2% CAGR between 2026 and 2036.