Match alternative forages to grass silage quality

Farmers can optimise performance from next winter’s conserved forages by analysing the feed quality of their grass silage, and then using alternative forages that will ideally complement it, says Nickerson forage marketing manager Simon Broddle.

“First cut silage has produced two very different crops depending on when they were made,” Mr Broddle explains. “Those cut in early May missed the cold wet spell mid-month, and much of it is of high D value with good ME’s and protein contents. However, some results have come back with high ammonias and are quite wet. Where chop length was relatively short, these silages may present feeding problems next winter.”

Farmers can save the situation by including wholecrop in the forage mix. At 45%DM, this will produce much dryer silage, with good energy levels in the form of sugars and starch, and reasonable protein. Its main advantage is superb fibre quality, which will help maximise the feeding value of any poorer quality grass silage in the rumen, advises Mr Broddle.

“Later cut grass silage has turned out quite different – much lower in D value, with several samples I have seen down in the 60’s,” he says. “However, leys that had sheep grazing on it late, and mixtures designed to hold their quality, such as Nickerson’s Red Circle, have held their D value well. These silages have good sugar levels, sound fermentation characteristics and, ensiled well, will produce a sound base to the winter ration.

“With grass silage like this in the clamp, maize would be an ideal crop to feed with it – offering high energy, high starch values and good dry matter. The grass will provide the fibre required for good rumen function.”

Mr Broddle also advises farmers to bear in mind that manipulation of forage can also help achieve milk contract specifications. For example, contracts based on milk solids are more likely to be met by feeding wholecrop, which is worth considering when planning the winter diet.

For further information please contact Simon Broddle on 01858 432945 (Mob: 07850 811247) or email sbroddle@aol.com