In the United Kingdom a trial undertaken at Reading University indicates that using a commercial inoculant on grass silage can improve silage stability, increase feedable dry matter and improve milk production. At harvesting the grass had 28 percent dry matter. After 100 days the treated silage had in kilograms 29 percent more dry matter and better quality. Aerobic stability was also improved in the treated silage. This resulted in less heating (8 degrees Celsius difference) with reducing the energy lost. Cows ate 1.5 kilogram dry matter more of the treated silage and produced 1.9 kilogram standard milk more per day with 0.1 percent more protein and 0.19 percent more fat.