Brewer’s grains are a by-product of brewing. They are often used as a supplementary animal feed and an organic additive for growing vegetables.
This pulp contains grain shells and crushed particles of barley grain. In fact, it is an environmentally friendly feed with a large amount of protein, useful trace elements and vitamins.
When dried, the percentage of protein increases significantly. In addition, the dry matter is adapted for longer storage.
For animals, beer grains are a valuable protein feed. In practice, the most effective is its use for cattle, pigs and sheep. The use of beer grains contributes to increased live weight gain and increased milk yield. Below is a detailed description of how and to whom it should be fed.
For vegetables (vegetable growing), beer grits are a fairly effective additive. They improve soil structure and serve as a source of slow-release nutrients. Beer grits are rich in nitrogen, phosphorus, potassium, amino acids, and trace elements. And their proper use significantly improves the yield of vegetable crops. Below we have provided a detailed description of how and for which plants beer grits are best used.
Now more specifics…
For animals
Cattle
For ruminants, pellets are an ideal source of “protected” protein, which is absorbed directly in the intestines, significantly increasing milk yield and growth.
- Dairy cows: The norm is 10–15 kg of fresh pellets per head per day. Introduction to the diet increases milk yield by 10–15% and increases the fat content of milk.
- Fattening steers: Up to 15–20 kg per day can be given. It provides rapid muscle mass gain due to its high protein and fiber content.
- Calves (from 6 months): Start with small doses, gradually increasing to 2–4 kg per day for the development of the fore-stomachs.
Pigs
Due to its high fiber content, pellets are not suitable for all sex and age groups of pigs.
- Fattening pigs: Optimal dose is 2–4 kg per head per day (up to 15–20% of the dry matter of the diet). It improves the quality of meat and fat.
- Fattening sows: Helps control weight and improves digestion, the norm is up to 2–3 kg.
- Who should not: Suckling piglets and weaned young (their stomach is not able to digest such an amount of fiber).
Sheep and goats
- Adult animals: The norm is 1–2 kg per day. Pellets stimulate milk production in goats and improve the quality of wool in sheep.
How to feed pellets correctly (Important!)
1.Feeding forms:
- Fresh (wet): Feed immediately “from the wheels” for 1–2 days. Introduced into the diet gradually (over 5–7 days) so that the rumen microflora can adapt.
- Ensiled (canned): For long-term storage, wet pellets are carefully tamped in trenches or special sleeves without air access, often adding chemical preservatives or sorbents. In this form, it is stored for months.
- Dry (granulated): The safest option with an unlimited shelf life. 1 kg of dry pellets replaces about 3.5–4 kg of fresh. It is added directly to the composition of compound feeds (up to 10–15% of the total mass).
2. Mandatory balance: Pellets are low in calcium and high in phosphorus. If used for a long time, chalk or multimineral premixes must be added to the animal’s diet to avoid bone problems.
⚠ Main risk:
Fresh brewer’s grains contain up to 75-80% moisture and spoil (sour) in just 24-48 hours in warm weather. Sour feed causes severe poisoning and acidosis in animals.
For plants
Ways to use
- Composting (best method): Fresh pellets are highly acidic (\text{pH } 4.5\text{–}5.5) and can acidify the soil. Mix them with “brown”, carbon-rich materials (straw, sawdust, dry leaves) in a ratio of 1:2 or 1:3. This neutralizes the acidity and turns them into first-class humus.
- Liquid organic fertilizer (“green tea”): Fill a container 1/3 full with pellets, fill with water and leave to ferment for 1–2 weeks. Dilute the resulting concentrate with water 1:10 for root feeding of tomatoes, peppers, cucumbers and cabbage.
- Mulching and row feeding: Dry or dried pellets can be spread in a thin layer (up to 2–3 cm) in the rows. It retains moisture, suppresses weeds and, decomposing, nourishes soil microflora.
- Autumn soil preparation: Applying fresh pellets directly to the soil for digging is effective only in autumn (at the rate of up to 3–5 kg per 1\text{ m}^2). Over the winter, microorganisms will process organic matter, and by spring the soil will be saturated with humus.
Which vegetables are best suited for
- Nitrogen-loving crops: Cabbage (all types), zucchini, pumpkins, cucumbers and lettuce respond well to such feeding with active biomass growth.
- Solanaceae: Tomatoes, eggplants and peppers receive the necessary boost for root system development and abundant flowering.
⚠ Important warnings:
- Odor and pests: Fresh pellets quickly turn sour and attract flies, wasps and rodents. Store in closed containers or immediately incorporate into soil/compost.
- Risk of acidification: Do not apply large amounts of fresh pellets directly to the roots of plants in spring. If the soil is already acidic, be sure to add ash, chalk or dolomite flour to neutralize.