Most first-time growers treat the harmattan as a weather event. It is better understood as a budget event. The dust, the cool nights and the dry air arrive in the same weeks as young chicks, and each one touches a line of the batch cost.
The harmattan is the dry, dusty wind that usually arrives around the turn of the year and blows down from the north and north-east. Its effects on the house are rarely dramatic on any single morning. They build up over a cycle, through heat, litter, feed and breathing, and the bill for them shows up at the sale.
Our hatch in Kasoa runs every Thursday at 7:00, so the timing question is never abstract for us. A batch placed in the dry months has to be planned around the weather it will meet, not the weather that was there when the chicks were ordered. The sensible approach is to plan for the conditions the birds will actually face.
What the dust and dry air actually do
Fine dust gets into everything: the litter, the feeders, the drinkers, the lungs of the birds and the lungs of the people working in the house. Dust that settles on the feed and on the water line adds stress to birds that already need every bit of growth they can manage. Keep the house swept and the drinkers clean, and check the litter each morning rather than once a week.
Dry air has its own effect. Litter dries out and lifts, and dusty litter means more particles in the air at bird height. Young birds that breathe that air for weeks are more likely to show respiratory trouble, which slows growth even when they do not die. A slow bird is a bird that misses the market week.
Cool nights create the opposite problem. Chicks that get chilled bunch together, lose body weight and fall behind the flock. A temperature that feels mild to a person in a sweater can be a cold snap for a chick that is one or two weeks old. Brooding has to hold through the night, not only in the afternoon when the house feels warm.
The first hours after the chicks arrive
A crate that arrives during the cool part of a harmattan morning or late at night is a test of the brooder, not of the chicks. Have the brooder warm and the litter dry before the crate leaves the hatchery, so the birds step into a ready house. A cold floor with a warm lamp above it is not the same as a warm house.
Count the chicks as they come out and watch how they move. Chicks that huddle at one side of the brooder are telling you the heat is uneven. Chicks that spread out and drink normally are telling you the house is working. Make small adjustments to the lamp height and the floor-level heat before you walk away.
Water and feed should be easy to reach from the first hour. Chicks that have to search for either lose time, and time is the scarcest thing in a short cycle. Set the drinkers and the feed trays before the crate is opened, not after.
Brooding is where the money leaks
The brooding line in your costs is the one the harmattan tests first. Heat lamps, gas or electricity, and the fuel to keep a brooder going through a cool night all come out of the roughly GH₵12 per bird that covers brooding heat, litter, vaccines and vitamins, labour and utilities. Each item looks small on its own, but together they carry the house through the first weeks.
Do not cut heat to save money. A few cedis saved on a cool night can cost far more in weight lost, in uneven flocks and in birds that never reach the market weight of 2.3 to 2.55 kilograms. The saving is clear on the day and gone by the sale.
Our day-old chicks are vaccinated against Marek's disease on day 0 at the hatchery, and Newcastle or Gumboro vaccines are often given depending on the batch. A chilled or dusty brooder adds stress on top of the vaccine, which is why the house matters as much as the vaccine itself. Our hatchery page explains what we vaccinate at hatch and how batches are prepared before they leave.
Brooding also moves the cost per bird more than most growers expect. The chick, the feed and the other-costs line are fixed in a plan, while the heat is the swing factor. Track fuel and electricity for each batch rather than estimating them, so the next dry season is planned from real numbers.
Ventilation without the dust
Open sides let air move, but they also let in the harmattan. Close the house too tightly and the air goes stale, humidity builds and ammonia from wet litter starts to sting the eyes and lungs. The answer is not to choose between fresh air and clean air, but to manage both. Adjust the curtains by time of day, let the house air out during the warm hours, and keep the litter dry enough that it does not give off a strong smell.
Sweeping is more useful than most growers assume, provided it is done in the right order. Dust stirred up by a broom only moves to the next surface, so dampen the floor lightly where your house allows it, and clear dust from walls and beams between batches rather than during the cycle, when birds are present.
Costing a dry-season batch
Start from the same base as any batch. A 1,000-bird batch sits in a working range of roughly GH₵65,000 to GH₵80,000 from chick to market, and feed is more than half of that. The question for the harmattan is not whether the base changes, but how much mortality and extra heating add on top. Our guide to whether broiler farming pays sets out the base case before the weather is added.
A few percentage points of mortality look small on a plan and large in cedis. The figures in the table are illustrative. They use our quiet-month price of GH₵75 to GH₵80 a bird and apply to a 1,000-bird house.
| Dry-season pressure | What it does to the batch | Illustrative effect on a 1,000-bird batch |
|---|---|---|
| Well-managed mortality, 3 to 5 percent | Steady brooding, clean litter, timely vaccines | 30 to 50 birds, about GH₵2,250 to GH₵4,000 of quiet-month sales |
| Poor brooding or disease, 10 to 20 percent | Chilled chicks, respiratory stress, slower growth | 100 to 200 birds, about GH₵7,500 to GH₵16,000 of quiet-month sales |
| Extra heat and fuel on cold nights | Brooder lamps and power run for longer hours | Sits inside the roughly GH₵12 a bird other-costs line, so track it separately for each batch |
The last row is the one growers tend to underestimate. Fuel and electricity used to hold heat through cool nights rarely appear as a single line in a plan, so they get absorbed into other costs and lost from view. Separate them. A simple heating log for each batch takes minutes to keep and tells you more about the next harmattan than any general estimate.
Quiet-month sums show the same pattern. At a sale price of GH₵75 a bird, a 4 percent loss on 1,000 birds is 40 birds, or about GH₵3,000 of sales. Set that against the cost of a heating log, a dust-control routine or a proper brooder check, and the comparison is rarely close.
Walk the house before you place the chicks
Visitors are welcome Monday to Saturday from 7am to 6pm, so you can see the brooding set-up and the store before you commit. If you are weighing a partnership batch, the calculator on our partner page lets you test a dry-season sale price against your own cost assumptions.
When the rains take over
By the time the harmattan lifts, the risk changes shape rather than disappearing. Rains bring humidity, wet litter and a greater chance of disease in a house that has been busy for weeks. The dust gives way to damp, and damp is hard on chicks and on feed alike.
Feed is the most exposed item. A store that stayed dry through the harmattan can take on moisture once the rains arrive. Damp feed loses quality, mould can develop, and birds that eat it grow more slowly. Keep bags off the floor, keep the store closed, and use older stock first.
The clean-out and rest period between batches matters more in the wet months. A house that starts a new cycle with damp litter from the last one is already behind. Allow the house to dry properly before the next placement, and treat the rest period as part of the cycle rather than dead time.
Rain also changes how birds use the house. They crowd into the dry corners, and the litter under the drinkers gets wet first. Check the pattern each morning, and move drinkers if the wet area keeps growing.
Mortality is the number that moves the budget
Well-managed batches run at 3 to 5 percent mortality. Poor brooding, dust-related stress, disease or a wet house can push that to 10 to 20 percent, and at the top of that range the cycle can lose its profit. The dry season does not decide that outcome alone, but it is where many of the early decisions get made.
That is why daily checks matter more than the monthly report. Look at the birds in the first hour after dawn, when the cold night has had its effect. Notice the chicks that stay at the edge of the brooder, the birds that stand apart from the flock and litter that feels cold or crusty. Write down what you see, because the pattern usually shows up before the losses do.
Weekly weights are the clearest early signal of what the dust and the cold are doing. A flock that is slightly behind on weight at the first weigh-in rarely catches up without a change in the house. Compare each week's weights with the week before and act on the trend, not on a single average.
Dust does not excuse poor brooding
Harmattan is not a reason to accept higher losses. Mortality of 10 to 20 percent, the range poor management or disease can produce, can erase a cycle's profit. Any offer that promises a fixed return, in a dry season or a wet one, is not one to sign. Returns depend on batch costs, mortality and sale prices, and our partnership is a profit share under a written agreement.
Feed, water and the store in dusty months
Dust gets into feed bags and drinkers faster than most houses expect. A drinker line that is not cleaned daily can collect dust and slime, and birds that drink less eat less. Clean the drinkers, check the water flow and the drinking points each morning, and keep the feeder pans clear of litter.
At the store, plan the feed purchase against the weather. Buying in steady amounts keeps stock fresh and limits the loss if a bag is spoiled. Our store sells feed, equipment and vaccines, so supplies for a dry-season batch can be sorted on the same visit as the chicks. Payment can be made by MTN MoMo, Telecel Cash, AirtelTigo, bank transfer or cash.
Feed prices also move with the cedi and with grain costs, so the feed line can shift between the time you budget and the time you buy. Keep a margin in the plan, and do not treat last month's bag price as fixed for a full cycle.
Where a dry-season batch leaves you
The harmattan is a predictable stress, and predictable stresses can be planned for. Brooding heat, dust control, water hygiene and a dry store cost less than the losses they prevent. A batch that comes through the dry season well usually shows it in the weights at the weekly check, long before the final sale.
If you want a batch run by a team that reports to you every Thursday with photos, weights, feed and mortality figures, the partner page sets out the terms. You sign a written profit-share agreement before placement, capital is returned first, and payouts go by bank or MoMo days after the final sale. Payments only ever go to the Agro Prime Ghana Limited company account, and diaspora partners can book a live video walk-through of the farm before they commit.
Plan a batch on the partner page
For the wider planning numbers, read our poultry business plan guide.
