Our silage advice section of the Agri-Hub offers a collection of articles, guides and blogs aimed at improving the quality of your silage. Written by silage experts we will guide you through using silage additive, storage solutions, chop length and assessing your clamp. We will also look at avoiding aerobic spoilage to create high quality silage that will go on to positively impact herd performance.
Wet conditions this past winter lead to heightened risks of soil and slurry contamination in first-cut grass silage, because of increased wheel ruts in fields and delayed slurry applications. Farmers will require extra vigilance with silage-making this season.
Low grass silage stocks have been a significant subject of conversation this summer, stemming from the adverse impact of a dry June on grass growth.
Although we had rain towards the end of June, it was patchy. Where rain did fall, it often came in short, heavy bursts. If the ground was baked hard, this made it prone to run off. What we needed was prolonged rainfall to wet the ground so it could soak in.
Ecosyl UK research has found that selecting the right wilting technique when making grass silage can speed up the process by up to five times. The research, which was conducted on farms in Wales using farm-scale silage machinery, compared the effects of tedding, time of day of cutting, and crop maturity on the rate of crop drying.
The results showed that tedding the grass after cutting increased the rate of wilting by up to 30%. Cutting the grass in the morning also resulted in faster wilting, as the dew on the grass helped to cool it down and reduce the rate of evaporation. Finally, the research found that the most mature grass wilted the fastest, as it had a higher water content.These findings suggest that farmers can speed up the silage wilting process by using the right techniques. Tedding the grass after cutting, cutting it in the morning, and harvesting the most mature grass will all help to reduce the amount of time it takes to make silage.
It is essential to take good care of grass silage made this year. Increasing milk production from home-grown silage is a great way to improve profitability.
Good quality silage starts with good quality grass, and cutting at the right stage of growth is key to achieving this, a one-week delay in cutting is equivalent to 1.2l of milk/cow/day. Allowing crops to “Bulk up” may mean more silage in the pit on any single cut, but generally cutting more often means you will grow more grass through the season – so potentially more silage of a better quality.
With huge scope to maximise productivity from forage, Wynnstay has launched a new Forage4Profit campaign, which is designed to support farmers to improve meat or milk from forage.
The 2022 Kingshay report indicates that the average milk from forage on UK dairy farms is 2,900 litres, showcasing that there is huge scope for improvement, with some of the best farms reaching over 5,000 litres.
In recent times there has been some debate about the ideal chop length for rumen health. In this respect, a useful gauge for chop length is that it should be the width of a cow's mouth! However, only a maximum of 10 per cent should be this long. If there is too much long chopped forage cows will sort the ration and only eat the short chop. In terms of good compaction in a silage clamp, it is absolutely essential to alter the chop length depending on the dry matter content of the forage to be ensiled.
With high fertiliser costs should you ‘batten down the hatches’ or focus even harder on producing good grass silage this season?
Dry matter – Is grass providing enough dry matter intake to support the energy requirement for milk production and getting cows back in calf?
Protein – Grass is high in rapidly degradable protein; this needs to be utilised by the rumen microbes in order for them to produce microbial protein. Poorly utilised protein can have a negative impact on fertility and limit milk yield.
Rapidly fermentable carbohydrates – Early season grass is high in sugar (and digestible fibre), this can be an issue for rumen health. A consequence of this can be milk fat depression and a reduction in milk value. It is important to understand the nutrient content of grass. Fresh grass analysis throughout the grazing period will provide useful information about the points above.
When your maize is ensiled at the recommended DM of 32 to 35% there is still enough sugar present for fermentation to achieve a stable low pH.
Maize has a low buffering capacity so the pH falls fast, often to a pH as low as 3.5. Natural fermentation can often result in much higher proportions of acetic acid and ethanol, an indication of a less efficient fermentation which could b
If you didn’t look at reseeding last spring, this autumn could be an ideal time to invest in your forage quantity and quality.
