Short answer: Wheat bran brings fibre and some protein but little energy, and rice bran brings fat, which means energy and also rancidity in Ghana's heat. Both can replace part of the maize in a mix, but each has a ceiling set by fibre, fat and phytate, and that ceiling is lower for young birds. Buy bran with an analysis, check it for husk and a stale smell, and keep the share small.
Key takeaways
- Wheat bran is mostly fibre and bulk. Rice bran is mostly fat, which means energy and rancidity.
- Rice bran can turn sour within days in a hot, humid store, so buy it fresh and in small volumes.
- Rice husk is the common cheap filler in bran. Check for it before you pay.
- Much of the phosphorus in bran is locked in phytate, so do not count it all as usable.
- Keep bran out of chick starter, and keep it to a small share in every other ration.
The cheapest sack in the shop, and the easiest to overfeed
Bran is what comes off the grain when it is milled: the outer layers and the germ that flour and polished rice have no use for. It is cheap, it is bulky and it looks like feed, which is why it finds its way into troughs where it does not belong. We see the results mostly as loose droppings, slow weight gain and birds that eat plenty and still look thin.
Wheat bran and rice bran are different animals. Treat them as one ingredient and you will get one of them wrong.
What is in each bran, and why it matters
The figures below are typical ranges, not guarantees. The analysis from your supplier for that lot always comes first.
| Feature | Wheat bran | Rice bran |
|---|---|---|
| Crude protein (typical) | Around 14 to 17 per cent | Around 12 to 14 per cent |
| Fat | Low, a few per cent | High, often above 12 per cent |
| Crude fibre | High, around 9 to 11 per cent | Moderate to high, and it rises with husk |
| Energy for birds | Modest, and the fibre holds it back | Good, mostly from the fat |
| Main problem | Fibre and phytate phosphorus | Rancidity, and husk added as filler |
The useful reading is this. Wheat bran is mostly fibre and a little protein, so it fills a bird and dilutes the energy. Rice bran is mostly fat, so it gives energy, but the fat is the part that goes off.
Rice bran goes rancid, and Ghana's heat speeds it up
Rice bran carries an enzyme that starts breaking its oil down as soon as the bran is milled. Free fatty acids build up over time, and the bran starts to smell stale, then sharp, then like old frying oil. Birds notice before we do. They pick at it, eat less and sometimes leave it altogether.
Heat and damp make this a matter of days rather than weeks. A sack of fresh bran opened in the rains can turn sour well before the bag is finished. Buy rice bran in volumes you can use quickly. If the mill sells stabilised bran, the enzyme has been dealt with and the shelf life is much longer, though it still needs to be stored dry.
Husk and filler: what cheap rice bran is cut with
Rice husk is the hard outer shell of the grain. It has almost no nutrition and it is cheap, so it finds its way into bran as a filler. A heavy husk content drags down the protein and fat figures, and it adds fibre the bird cannot use. You can feel it when you handle the bran: it is coarser and more sharp-edged than fresh bran.
A simple check takes two minutes. Spread a small handful on a white sheet and look for flat, hard fragments of husk. Sift a cupful through a fine mesh and see how much is left on top. If the seller cannot explain the husk content, do not buy in bulk.
The phosphorus that the bird cannot use
Both brans carry phosphorus, and on paper that looks like a bonus. Most of it is locked in phytate, the stored form of phosphorus in grain. Poultry can release only a limited share of it, so a ration that counts the bran's phosphorus at face value ends up short on usable phosphorus.
Two things help. Add a source of available phosphorus, such as dicalcium phosphate, to reach what the bird needs, and ask your formulator whether an enzyme that breaks down phytate makes sense in your mix. Our article on feed formulation basics shows how the ration sum is put together, phosphorus included.
How much bran each bird can take
Read the table as a ceiling for your formulator to check, not a target to hit. The moment birds show loose droppings or slow down, the share is too high, whatever the table says.
| Bird and stage | Wheat bran | Rice bran | Why |
|---|---|---|---|
| Chicks on starter | Keep it out | Keep it out | Young guts and a tight starter ration do not mix with bulk |
| Broiler grower and finisher | A small share | A small share, fresh only | Broilers need energy-dense feed to grow quickly |
| Pullets | A modest share | A modest share, fresh only | Fibre fills the gut and helps control weight |
| Laying hens | Up to around a tenth of the mix | Less than wheat bran, fresh only | Hens need energy and calcium steady for egg output |
A worked swap: 10 kilos of maize replaced by rice bran
Say you are making 100 kg of layer mash and you swap 10 kg of maize for 10 kg of rice bran. On typical figures, maize sits around 9 per cent protein, 4 per cent fat and 2.5 per cent fibre. Rice bran sits around 13 per cent protein, 15 per cent fat and 10 per cent fibre. Work out the change per 100 kg of mix.
- Protein rises by about 0.4 percentage points, because 10 kg at 13 per cent is 1.3 kg, against 0.9 kg from the maize.
- Fat rises by about 1.1 percentage points, because 1.5 kg of fat from the bran replaces 0.4 kg from the maize.
- Fibre rises by about 0.75 percentage points, because 1 kg of fibre replaces 0.25 kg.
The protein gain is small. The fibre gain is the number that matters, because fibre takes up room in the gut and in the ration, and the fat brings the rancidity risk with it. A 10 kilo trial in a small batch is a sensible test. Making the swap across a whole store is a different decision, and one to take with your formulator. Our cheaper feed alternatives article looks at the wider list of swaps.
Signs a flock has had too much bran
- Loose or watery droppings that do not clear within a day or two of a ration change.
- Full crops and slow weight gain, which suggests the birds are filling up on low-energy fibre.
- Wet litter, since the fibre passes through holding more water.
- A dip in egg size or laying rate in layers after a bran share goes up.
- Spilled bran drawing rodents and flies around the feed store.
Any one of these is a reason to pull the bran back and see what happens. Several together means the bran share is too high for the birds on the trough.
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Storing bran through the rains and the heat
Bran is light, dusty and quick to take up moisture. In the rains it can go mouldy within a week if the store leaks or the sacks sit on wet concrete. Keep it raised on pallets or wooden slats, away from the walls, under a roof that does not drip. Fold and close any open sack tightly, and use it within days rather than leaving a half-open stock to sit.
Harmattan dust is the other problem. Fine dust settles in the bran and draws in moisture, and it carries whatever is in the air. A covered bin or a tight-lidded drum keeps bran cleaner than a sack left in the yard.
A checklist before you buy bran
- Ask for the analysis for this lot, including fat and fibre, not only protein.
- Pour a handful on white paper and look for husk fragments.
- Smell it. Fresh bran smells of grain. Stale rice bran smells sharp or like old oil.
- Squeeze a handful. It should feel dry and crumbly, not sticky, cold or damp.
- Check the bottom of the sack for insects, webbing and droppings.
- Buy the smallest volume you can use in about two weeks during the rains.
- Write the lot number and the date on the sack in your record book.
Where bran fits in a sensible plan
Bran is a sensible part of a cheap ration when it is used with the rest of the mix in mind. Our layer feeding guide shows the programme a bran share has to fit inside, and starter, grower and finisher feeds explains why the starter phase is no place for bran at all. If you mix your own feed, our home-mixing article covers the storage and checks that go with it.
The same storage rules apply to every bulky ingredient. Our feed storage article sets out the routine for keeping mould out of the store, and the brewers' grains article at brewers' grains for poultry covers another wet-to-dry problem in the same way.
Start with the strain, then the sack
The feed plan is only half the job. The chicks you start with set the ceiling for everything that follows, so choose the strain before you choose the sack. If you are planning a broiler house, broiler day-old chicks is the place to start. For layers, see layer day-old chicks. Orders go through the order form, and any question about breed or delivery can go to WhatsApp at +233 24 915 1503.
Questions farmers ask
Can I replace maize with rice bran in layer feed?
A small share can work, but rice bran is mostly fat, and that fat goes rancid quickly in Ghana's heat. Use fresh bran only, keep the share modest and check egg size and laying rate after each change. If you are unsure, ask your formulator to work the swap into your mix before you start.
Is wheat bran good for broilers?
Not in the starter phase, and only in a small share in the grower and finisher. Wheat bran is high in fibre and low in energy, so it fills a bird without feeding it well. Broilers are bred to grow fast on energy-dense feed, and too much bran slows that down.
How do I know if my rice bran has been cut with husk?
Spread a handful on white paper and look for flat, hard fragments of husk. Sift a sample through a fine mesh and check what stays on top. A high husk content shows up in the analysis as lower protein and fat, so compare the sheet with the lot you are buying.
Why does the bran smell like old oil?
That is rancidity. The fat in rice bran has started to break down into free fatty acids, which give the stale, sharp smell. Birds often refuse rancid feed, so intake drops. Stop using that bran, check the other bags in the store and buy a smaller, fresher lot.
Does the phosphorus in bran count towards the bird's needs?
Only partly. Much of the phosphorus in bran is bound in phytate, and poultry use it poorly without help. Your formulator should count only the available phosphorus, and add a supplementary source if the ration falls short.
How long can I store bran during the rains?
Not long. In wet weather bran can mould within days if it sits on damp concrete or in a leaking store. Keep it raised, dry and covered, buy in volumes you can use quickly, and check every sack when you open it. A musty smell or any visible mould means that bag comes out of the feed.
Can I give bran to free-range or local chickens?
Yes, in small amounts, as a supplement to forage and scraps. Free-range birds get much of their feed from the ground, so they do not need a bran share for energy. Keep it dry, do not leave a heap for them to pick over in the rain, and do not let it become the bulk of their diet. More questions are answered on our <a href="/faq/">FAQ page</a>.
