Dry matter (DM) loss is often called silage ‘shrink’. When silage shrinks, there is less available silage.
In addition, these dry matter losses are made up of the more valuable nutrients such as sugars, starches and soluble proteins. This leaves a higher concentration of lower-value nutrients, like fibre and ash.
Dry matter losses occur by two primary means:
With spoilage losses, the key is to prevent or delay the growth of spoilage bacteria, yeasts, and subsequently moulds, that grow when oxygen gets into the silage at feed out. This can result in silage heating. Dry matter losses can occur once the silage face is exposed to air during feed out.
Reheating by 10ºC leads to a reduction in methane of around 4% per day.
✓ The average UK maize crop costs around £450 / acre to grow
At 18t / acre = £40 / tonne FW (32% DM)
✓ Poor clamp management can lead to considerable losses
Untreated maize can average 15% loss
Loss of 45 tonnes of DM for every 1000 tonnes of FW ensiled
Costing £3,736 in total or 3.74/tonne FW
✓ Silasil Energy will help reduce losses in the clamp
If DM losses are cut to 5% saves 30 tonnes DM
Worth £2,490 in total or £2.49/ tonne FW
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