Silage Meal Reduction Calculator
See exactly how much silage your concentrates displace over winter and whether your stock will last the housing period.
Livestock Silage Demand
Typical 2.5–3.5%
Typical 25–35%
Silage in Stock
Enter directly, or use the helpers below to add from pits and bales.
Pit Clamp Calculator
Baled Silage Calculator
Concentrate (Meal) Reduction
Typical 86–88%
Results
How the Calculation Works
The calculator first estimates your herd's total dry matter demand over the housing period based on live weight and the percentage intake rate you enter. This is converted to a fresh-weight silage demand using the silage DM percentage.
Step 3 then calculates how much of that silage demand is displaced by concentrates. Each kilogram of meal (at its DM%) substitutes for an equivalent amount of silage DM, reducing the total tonnes of silage your herd needs from the clamp or bale stack.
Typical DM Intake Rates
Actual intake is affected by forage quality, palatability, stage of production and level of concentrate supplementation. High-quality silage (D-value >68) supports higher intakes.
Related Tools
Pit density estimate of 650 kg/m³ is a UK average for well-consolidated grass silage. Maize silage typically achieves 700–750 kg/m³. Actual density varies with consolidation, chop length and DM content — weigh a pit sample or contact your forage adviser for precision planning.