Silage analysis of first cuts 2016

Published 24 August 16

Trouw Nutrition’s GB Silage Watch for August 2016 highlights how later first cuts, which are more mature at harvest, have had an impact on the quality of first cut silage this season. 

 Silage analysis of first cuts 2016

The average digestibility value (d-value) and Metabolisable Energy (ME) values of first cut silage, this season, are down slightly to 67.6% and 10.7MJ/kg, respectively, with higher fibre contents contributing to the lower ME value. Assuming a dry matter intake of 10kg and an average ME of 10.7MJ/kg DM, this silage will support cow maintenance plus 6.4 litres of milk, down 0.5 litres compared to 2015. Dry matter on average has increased which has been helped by fewer wetter silages harvested this year (ie harvesting with a DM content of less than 25.0%).

Despite reductions in ME, other parameters such as crude protein and DM lie within acceptable or average ranges. While quality may not appear to be as good as last year, this year’s silage is not expected to have a severe negative impact on yields.