Do I need an additive for high DM grass silage?

With high DM grass the fermentation is slower and the silage will stabilise at a higher pH. The slow fermentation allows more time for undesirable microorganisms to be active as well as increasing the breakdown of true protein.  Inoculation speeds up the process as well as making it more efficient with lower DM losses.

High DM silages are also at higher risk of aerobic spoilage at feedout with potentially high losses and the risk of mycotoxins so good management is essential but additives are also available to help reduce aerobic spoilage.

Remember – an additive is not a substitute for good management.