To provide Miso-containing feed excellent in miscibility with another feed of a different type, and having an antifungal effect and an appetite stimulating effect.

The Miso-containing feed is produced by uniformly mixing/kneading Miso with a powdery feed insoluble to water (insoluble feed) at a prescribed ratio, using a stirrer/mixer having a shearing action. The resulting feed has high liquidity, excellent miscibility with another feed of a different type, an antifungal effect, and an appetite stimulating effect, and is effective in preventing various livestock diseases.