For the Future of Farming

ProMyr™ Silage Plus - First Choice For Reducing Waste

Afbeelding: Calvin Pugh

Calvin Pugh, his wife Rachele and daughter Sarah trading as Court Farm Partnership, are based in Kempley, Gloucestershire. They started milking there in 1994 and currently milk 230 cows, with a rolling average milk yield around 10500 litres. The cows are housed all year round and herd efficiency is constantly benchmarked as part of a local dairy group to which they belong. A focus on their costs on a pence/litre basis has enabled them to optimise overall profitability within the current climate of low milk prices.

A novel chemical preservative

Making annually approx. 2500 tonnes of silage split 40/60 grass/maize, additives have been routinely used to ensure top quality material, and to minimise waste. Having used inoculants for many years, in 2011 they changed onto a novel chemical preservative developed at the Swedish Institute. They felt this approach though tripling their additive cost would help minimise adverse effects from regular slurry application to grass silage ground, and would give far better control of waste on the face and during feedout of grass and maize. They feel justified with their extra expenditure, as although their additive costs are 0.1p/L more than their group average, their bought in feed costs are 0.3p/L less.

ProMyr Silage Plus

The Results

  • Silage Analyses, showed no consistent differences or trends between treatments. After 6 weeks  Me=11.6  CP=18  NH3%=2  Lactic:VFA ratio=2.1 was common to all 3.
  • Temperature Measurements clearly showed both products greatly reduced heating. The ProMyr™ Silage plus kept silage cold for 10 days, twice as long as original product.
  • Milk Yield Comparisons were inconclusive, with fluctuation around 32 L/cow/day. Variation around number of cows in milk, made any treatment comparisons difficult.
  • Weighing Silages in and out, to measure DM loss proved to be not accurate enough.​ However the untreated bag required venting for 10 days 5 times longer than the others.

In Summary all three silages were excellent quality and fed very well.

  • The Agbag system being better sealed than a clamp supported the control silage.
  • The preservatives did what they claim in significantly improving keeping quality.
  • The ProMyr™ Silage Plus outperformed the original product in this respect.