PROBLEM TO BE SOLVED: To provide a method for producing a lactic fermented feed, by which the lactic fermented feed capable of healthily fattening domestic animals and having effects for improving the grade of meat quality can stably be fed everyday.SOLUTION: A method for producing a lactic fermented feed in a stirring device having spraying ports capable of spraying high temperature steam of &ge；100°C on a material to be stirred, has a step for charging a solid culture medium into a stirring container, a step for spraying high temperature steam of &ge；100°C into the stirring container to kill various bacteria in the solid culture medium, a step for charging heat-resistant lactobacillus into the stirring container, after the high temperature steam is sprayed and after temperature in the stirring container is then lowered to a range of 90-98°C, a step for stirring the solid culture medium and the heat-resistant lactobacillus with a stirring means, a step of lactic fermentation of the solid culture medium, and a step for cooling the solid culture medium in the stirring container to a prescribed temperature of <；40°C.【課題】 家畜を健康的に肥育でき、かつ肉質の等級向上にも効果がある乳酸発酵飼料を毎日安定して給餌することができる乳酸発酵飼料の製造方法を提供する。【解決手段】 被撹拌物に１００℃以上の高温蒸気を噴射できる噴射口を備えた撹拌装置内において、撹拌容器内に固体培養基を投入するステップと、固体培養基中の雑菌を死滅させるために、撹拌容器内へ１００℃以上の高温蒸気を噴射するステップと、高温蒸気の噴射後、撹拌容器内の温度が９０℃～９８℃の範囲まで低下してから、撹拌容器内に耐熱性乳酸菌を投入するステップと、固体培養基と耐熱性乳酸菌とを撹拌手段で混合するステップと、固体培養基を乳酸発酵させるステップと、撹拌容器内における固体培養基の温度を４０℃未満の所定の温度まで冷却するステップと、を含む、乳酸発酵飼料の製造方法を提供する。【選択図】 図１
