Alfalfa, the king of forages, is nutrient-dense and a top protein feed for ruminants like cattle, sheep, horses and rabbits. Rich in organic matter and nitrogen, it also serves as an organic-fertilizer input, and pelletizing preserves nutrients while improving storage and handling.
Alfalfa pulls nutrients from deep soil and delivers about 16–20% crude protein plus vitamins and minerals, making it an excellent feed for ruminants.
Rich in organic matter and nitrogen with an NPK of about 3-1-2, it also serves as high quality organic fertilizer that improves soil and plant performance.
To make full use of alfalfa and simplify storage and feeding, it is processed into pellets through a few key steps. Here is the standard production flow for alfalfa feed pellets.
Newly cut alfalfa can contain 60–70% moisture and must be dehydrated first.
Lay it in a ventilated, shaded area to let excess moisture evaporate, then use low temperature hot air drying. Keep drying temperature around 55–60°C to remove water while preserving chlorophyll and protein.
Aim for a final moisture of 12–15%.
Dried alfalfa often contains soil, stones, weeds or metal fragments. If not removed, these cause equipment wear or pellet contamination.
Remove debris by hand picking and vibration screening. Add magnetic separation if iron fragments are present.
Alfalfa stems are stiff and fibrous. Use a hammer mill or chaff cutter to reduce fiber length to about 3–5 mm.
If you buy preground alfalfa meal you can skip grinding, but still check moisture and uniformity. If the powder is too fine and pellets lack density, add a small amount of bran or coarse meal to improve forming.
Before feeding ground alfalfa into the pellet mill, add up to 3% molasses or vegetable oil as a binder and to improve palatability.
Die hole for ruminant feeds is typically 4 to 6 mm and can be adjusted by species.
Choose equipment by capacity and purpose
Pellets exit the machine at about 85 to 90 °C. If not cooled quickly they may reabsorb moisture, deform or develop mold. Cool to room temperature near room temperature by natural cooling or with a counterflow cooler.
In humid areas add a low temperature secondary drying step to remove residual moisture.
After cooling, screen the pellets and return fines and broken pieces to the pellet machine for recycling.
Step | Main equipment |
Drying | Hot air dryer, drying racks |
Cleaning | Vibrating screen, magnetic separator |
Grinding | Hammer mill, chaff cutter |
Pelleting | Flat die mill for small to medium scale; ring die mill for large continuous lines |
Cooling and screening | Counterflow cooler, vibratory screener |
Packing and handling | Mixer, automatic feeder, packing machine, conveyors |
Alfalfa blocks are made by compressing whole dry plants. Density about 90–180 kg/m3. They keep high fiber and lengthen chewing time, so they suit high-roughage diets. Blocks absorb moisture and can mold in damp storage. Typical loss rates range from 10 to 30%.
Pellets are made by grinding, mixing and pressing into dense pellets, about 550–700 kg/m3. Pellets are easier to store and transport and resist moisture. They can be formulated for different animals to improve palatability and cut selective feeding and waste.
1. Ruminant feed and protein supplement
Alfalfa pellets supply 16–20% protein and effective fiber. They support rumen function, rumination and saliva production.
2. Roughage base
Used as main roughage or a base in concentrates for rabbits, deer and camels. It boosts protein intake, coat health in rabbits and eases digestion in larger herbivores.
3. Ingredients for poultry and aquafeeds
Ground alfalfa adds plant protein, vitamins and pigments. It can improve yolk color in layers and provide fiber in fish and shrimp diets.
4. Raw material for organic fertilizer
Rich in organic matter and nitrogen, alfalfa is blended with manure or straw and composted into organic fertilizer pellets.
5. Soil improvement
Alfalfa pellets release nutrients slowly, ideal for poor or saline soils and for long-term turf and soil restoration.
Choosing the right pelleting equipment noticeably improves production efficiency and pellet quality.
If you plan to start alfalfa pelleting, feel free to contact us for equipment and process advice.
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