Quantifying the level of mycotoxin contamination in your feeds is always difficult, as there are >400 different species of mycotoxins, all with varying levels of toxicity, and they may not be in every part of the silage clamp or TMR that we sample! Generally speaking, any plant with a flowering head (such as maize or wheat) could have developed fungi in the field, under stress conditions such as drought or wet weather, which produce the ‘in field’ mycotoxins on the plant. When harvested, the mycotoxins remain in the silage, and in some cases, further mould/fungi growth in the clamp can lead to more ‘storage’ mycotoxin production.
When it comes to producing good quality, nutritious silage small things can make a big difference. This is especially true of mistakes. A shortcut or a small oversight can ultimately result in silage that is unusable due to insufficient dry matter content or worse, silage that is dangerous to herd health because of mould growth and the likely presence of mycotoxins or Listeria.
Many farmers have come to accept some issues, particularly with mould, as inevitable and as a necessary evil. The reality is however, it's all too often caused by someone committing one of a number of silage "sins".
New Volac research has taken a deeper look at the benefits of making multi-cut grass silage, whereby grass is cut younger and more often over the season, and examined how to better conserve this potentially high-quality forage.
Studying your silage clamp and looking at key indicators can benefit the quality of your silage at feed-out. This short video from Ecosyl highlights some of the top tips for assessing your clamp to help maximise the nutritional value of your silage.
