Producing feed on the farm has always been one of the most direct ways to control both cost and quality in pig production. When grain is crushed fresh on the farm rather than purchased as processed feed, producers gain a level of transparency over ingredients and freshness that commercial alternatives simply cannot match. With feed representing the largest single cost in swine production, getting the most out of every kilogram of home-grown grain is a goal that pays dividends across the entire operation.
This guide walks through the key practical and nutritional considerations behind pig feeding with farm-produced crushed grain, from choosing the right grain types and crushing fineness to integrating on-farm milling into a daily feeding routine. Whether the herd is small or large-scale, the principles of grain crushing for swine nutrition remain consistent: fresher feed, better digestibility, and lower feed costs.
Nutritional advantages of crushed grain for pigs
Crushing grain before feeding pigs significantly improves the digestibility of starch and protein compared to whole grain. When the outer hull is broken and the internal structure exposed, digestive enzymes in the pig’s gut can access nutrients far more efficiently. This translates directly into better feed conversion ratios and faster growth rates, particularly in finishing pigs where feed efficiency has the greatest economic impact.
There is also an important quality dimension to consider. Grain that is processed and preserved shortly after harvest retains a higher nutritional value than grain stored dry for extended periods. The moisture-crimped or freshly crushed grain approach, which forms the basis of the murska-preservation method, protects against nutrient degradation and reduces the risk of mycotoxin development. Research in ruminant and monogastric nutrition consistently shows that reducing mycotoxin exposure through proper ensiling of moist grain leads to healthier animals and more predictable production performance.
Choosing the right grain types for pig rations
Barley is the traditional backbone of pig rations in northern Europe, offering a balanced energy-to-protein ratio and good palatability. It responds well to crushing and can be fed either dry or at harvest moisture when preserved through ensiling. Oats add fibre and are particularly useful in sow rations to support gut health and satiety, though their lower energy density means they are typically blended rather than fed as the sole grain.
Wheat delivers higher energy than barley and is well suited to finishing rations where rapid growth is the priority. Peas and beans, while not grains in the strict sense, can be processed through the same on-farm milling equipment and provide a valuable source of plant protein that reduces reliance on purchased protein concentrates. Mixing grain types to balance amino acid profiles is straightforward when crushing is done on the farm, since blending can happen before or during the milling process depending on the equipment used.
How on-farm grain crushing cuts feed costs
The financial case for farm-produced feed through on-farm crushing rests on several compounding savings. The most immediate is the elimination of drying costs when moist grain is crushed and preserved directly after harvest. Drying grain to safe storage moisture is energy-intensive and expensive; bypassing this step entirely by ensiling at harvest moisture can represent a substantial reduction in energy expenditure per tonne of grain processed.
Beyond drying, home-grown crushed grain removes the margin built into commercially processed compound feeds. Producers pay only for the raw ingredient and the operational cost of running their own equipment, rather than absorbing the processing, transport, and commercial margins that are embedded in the price of bought-in feed. Over a full production year, the cumulative savings on a medium-to-large pig unit can be significant. There is also a practical flexibility advantage: the ability to adjust ration composition in response to grain availability, price movements, or changing herd requirements without being locked into fixed commercial formulations.
Optimal crushing fineness for swine feed
Getting the particle size right is one of the most important technical decisions in swine feed preparation. Pigs, unlike ruminants, benefit from a finer grind because their digestive system lacks the rumination process that mechanically breaks down coarser particles. A finer particle size increases the surface area available for enzymatic digestion, improving starch and protein utilisation.
Matching mill type to particle size requirements
Different mill types produce different particle size distributions, and the choice of equipment should reflect the specific needs of the pig herd. A hammer mill produces a fine flour-like meal that suits pig operations requiring very finely ground dry grain. This is particularly relevant for certain cattle and pig farms where feeding recipes specifically call for dry, finely ground grain incorporated into the ration.
A disc mill, such as those in our W-Max range, uses grinding discs to produce a fine, even crimp that works well for both dry and moist grain. The disc mill is especially well suited to pig farms that want a finer, more uniform particle than a roller mill typically delivers. The gap between the discs is easy to adjust, giving the operator direct control over fineness without complex technical intervention. A roller mill, on the other hand, produces a coarser, flattened crimp that is excellent for cattle but may be less ideal for pigs where a finer result improves digestibility. Understanding this distinction helps producers select the right tool for their specific feeding system.
Storage and preservation of crushed grain on the farm
Once grain is crushed at harvest moisture, it must be preserved immediately to prevent spoilage. The ensiling principle used in murska-preservation relies on anaerobic fermentation: when moist crushed grain is sealed airtight, lactic acid bacteria lower the pH and create a stable, palatable feed that retains its nutritional value for months. This is the same biological process used in grass silage, applied to cereal grain.
Storage options are flexible and can be matched to the scale and layout of the farm. Grain tubes (plastic bag silos) are a cost-effective and practical solution, particularly for farms that want to store smaller batches or separate grain varieties. Tower silos and bunker silos are suited to larger volumes and can be integrated directly into existing feed handling infrastructure. The key requirement across all storage formats is a reliable airtight seal and the use of a quality preservative additive to support fermentation and prevent secondary spoilage. Our disc mills, equipped with the Murska Data control system, handle preservative dosing automatically relative to grain throughput, removing one of the most common sources of inconsistency in on-farm preservation.
Integrating a grain crusher into your feeding system
Adding a grain crusher to an existing pig feeding setup requires some practical planning, but the integration is straightforward in most cases. The mill needs to be positioned to allow efficient grain intake from storage and easy transfer of the finished product to either preservation storage or directly into the feeding system. Auger conveyors and spiral conveyors are the most common transfer solutions and can be configured to suit most farm layouts.
Tractor-driven mills are a practical choice for farms that want flexibility without committing to a fixed electric installation. They can be moved between sites and used for contract work during harvest, which can help offset equipment costs. For farms processing grain continuously throughout the year, an electric-drive setup may offer better operational convenience. Whichever configuration suits the operation, the principle is the same: the mill should fit into the workflow rather than disrupt it, and equipment that is easy to use and maintain will see consistent use season after season.
If you are considering moving to on-farm grain crushing for your pig operation or want to discuss which mill type fits your specific situation, get in touch with us and we will help you find the right solution.
Meet Murska at EuroTier 2026
Murska will be exhibiting at EuroTier 2026, one of the world’s leading trade fairs for professional animal production and livestock farming. The event takes place from 10 to 13 November 2026 in Hanover, Germany, and brings together the latest innovations, technologies, and solutions from across the industry.
At the show, Murska will be presenting its solutions for efficient feed production, grain processing, and crimped grain preservation. From roller mills and disc mills to complete preservation systems, Murska’s range of equipment helps farms improve production efficiency, reduce energy consumption, and optimise animal nutrition. EuroTier 2026 places a strong emphasis on animal welfare, feeding technology, automation, and sustainable production — making it an ideal setting to see Murska’s innovations in action.
We look forward to welcoming you to the Murska stand at EuroTier 2026 in Hanover. Come and meet our team and find out how on-farm grain processing can work for your operation.
