05.12.2025
6 min(s)

Winter Feeding With Consideration

With Helen Rogers - Additives Technical Sales Manager Ruminants and Philip Ingram - Ruminant Technology Application Expert

Extremes in this year’s forage quality means there are no generalisations when it comes to rationing and feed management this winter. Diets will need careful tailoring to each herd, and consideration of each cow to get the best out of the diet.

 

While it’s tricky to rely on what you read in the press on silage quality each year, there are usually some common trends. But Cargill UK’s ruminant adviser Helen Rogers says that this year has bucked the trend.

Areas of Ireland, Scotland and Cumbria had an almost ideal combination of rain and temperature to provide good grass growing conditions. “The grass wasn’t under pressure here, and harvesting conditions were good. This resulted in some very good forage.”

 

Conversely, many parts of England, had prolonged drought conditions putting grass under stress. “Silage quantity is down in these areas, and limited grass growth in mid and late summer forced some to buffer feed and dip into winter forage stocks far earlier than usual,” she adds.

 

Forage quality took a hit too, in the areas hit by drought, with higher dry matters making it harder to get a good fermentation, tougher fibre characteristics and less digestible material.

 

“Maize yields too were a bit unpredictable. Again, drought put this needy crop under stress. Those who have always relied on maize silage for a good proportion of their forages might struggle to meet demand, whereas other less typical maize growing areas might be feeding a higher proportion of the crop in diets and will have to be wary of the higher starch content.”

 

Accurate stock taking of forage will be needed if supplies look lean and some early planning to avoid getting caught out in the new year.

 

“Lower cereal prices make them more attractive this year, so we’re likely to find a higher proportion in diets,” says Mrs Rogers. “But again, starch levels may be an issue and if they are, the ration will need to be carefully balanced to avoid the risk of acidosis.”

 

More producers may opt for co-products, but before rushing into this, their nutritional merits should be considered and their cost. “Don’t pay over the odds as demand could out-strip supply and force up prices. Including co-products in dairy cow diets must be beneficial nutritionally and be economically viable. And the oil content of the diet may increase due to co-products, depressing milk fat. This can be mitigated with a specialised buffer like Equaliser Cream.

 

Those with enough forage and full pits can feel some relief. “This is the year, for those producers, to get more milk from forage, and this can be done cost-effectively with a dedicated rumen buffer designed to access the untapped potential in the forages.”

 

Specialised rumen buffers play a major role in helping to extract feed value from forages as well as promoting a balanced ration.

 

“They can make a significant difference when it comes to maximising the feed value in forages and balancing varied rations,” adds Cargill’s European ruminant technical manager Philip Ingram. “Although this tends to be more visible when forages are higher fibre, the performance benefits are seen even with good quality forages.

 

“The rumen buffer Equaliser Fibre+, which includes the postbiotic Diamond V, is tried and tested on UK dairy units, and has been shown to increase energy from forage fibre by 12% and improve milk yield by 1.34kg/cow/day in practical farm trials.

 

“But it is also very powerful in keeping acidity under control and allowing the rumen microbes to continue to digest the fibre in the diet. Diamond V gives the fibre digestion bacteria an added boost. This is also a benefit with highly digestible silages that can run the risk of causing acidosis,” adds Dr Ingram.

 

“We can see visible proof of its effectiveness in manure consistency. Dung from diets including Equaliser® Fibre+ is less fibrous, proving more has been broken down and energy has been released that can be used in milk production or growth.”

 

With milk prices dipping, producers will be looking at winter rations carefully, and the use of a buffer may come under question. “But the value of a tried and tested product that makes better use of the nutrients in the diet and promotes rumen health will be even more pronounced when costs are under pressure.”

Forage Knowledge

The most important part of this year’s rationing will be to have up-to-date forage analyses to hand, though this analysis won’t ‘tell all’. “Don’t just rely on the forage analyses, but let the cows judge the quality too, by looking at and logging intakes to gauge how the cows are finding their feed.

 

“If it’s not very appetising or digestible, cows won’t eat as much,” he says. “And production and milk quality may drop. It’s then back to the drawing board and to fine tuning the ration.”

Eating efficiencies

Dairy researchers are looking more carefully at variations in eating behaviour and patterns among cows. “Results from research is showing variation within the herd, with some cows less efficient than others, and needing as much as 20% more food just to make the same amount of milk,” says Dr Ingram.

 

“Scientific studies on feed efficiency show that the less efficient cows tend to eat faster, have more acidic rumen conditions and also don’t digest their food as well. These factors are all interconnected.

 

While these feed efficiency variations among cows cannot be picked up easily in routine herd management of our herds, they are of interest to genetics companies as they select for greater economic and environmental efficiency.

 

With this year’s winter diets likely to be more extreme than usual because of forage quantity and quality, and higher proportions of cereals and/or co-products in the diet, the less efficient cows are more likely to struggle.

 

“We can’t easily identify which animals are less feed efficient in a commercial herd, so we need to ensure that diets are robust enough to support all cows, so that those that may struggle don’t rock the overall herd production.”

 

Nutritionists and producers will need to be on their toes and nimble to maximise the feed value in forage yet keep the ration carefully balanced particularly if more cereals and co-products are being included. And even the best balanced dairy rations will need to be delivered fresh, and easily available to the cows with plenty of trough space to be successful. “A good diet wont compensated for poor feed management and vice-versa,” adds Mrs Rogers.

Key Points

  • More extreme diets this winter will require careful and regular rationing

 

  • Each farm will be different and no one message fits all. 

 

  • Stocktake now - avoid a panic later

 

  • Analyse silage regularly AND monitor cow intakes to gauge how good the silage is

 

  • Consider cow-to-cow variation and formulate a robust diet

 

  • Protect rumen health. Diets high in fibre, starch or oil should look to use a specialised rumen buffer

 

  • A balanced ration is vital to maximise feed value from forages and other ingredients and mitigate risks such as acidosis. Rumen buffers have a key role

 

  • Don’t be tempted to kick out feed additives. Lower milk prices make their return on investment even better.