Poultry Brooding Guide

Brooding means keeping chicks warm, watered and eating from the hour they arrive until they can hold their own body temperature, which a chick manages at roughly 12 to 14 days of age. This poultry brooding guide runs through the first weeks in the order a farmer meets them: house preparation, temperature, the behaviour check that beats a thermometer, space, litter, water, feed and light. Most avoidable deaths in a batch happen here.

What Brooding Is and Why the First Three Weeks Decide the Flock

A newly hatched chick cannot regulate its own temperature. Research summarised by University of Georgia extension poultry specialists puts that ability at around 12 to 14 days of age, and until then the chick's body temperature simply follows the temperature of the room. A day old chick runs at about 39 degrees internally and climbs to roughly 41 degrees by five days, the same as an adult bird. Drop the room and you drop the chick.

That single fact explains why brooding carries so much weight. A chilled chick burns feed energy on staying warm instead of growing, and the same work shows chilled chicks have a weaker immune response and a weaker gut, so they pick up disease more readily. The weight lost in week one is rarely recovered by sale day. Birds brooded cold in trials stayed lighter at market age than birds brooded properly.

Overheating does its own damage, quieter but real. Chicks that pant are losing water, drinking instead of eating, and sitting flat rather than moving to the feeder. Either direction costs you. The target is the narrow band where the chick spends none of its energy on temperature at all, which is what the rest of this guide is about. For the wider picture of running a flock beyond the brooder, start from the poultry guides hub.

Preparing the Brooding House Before the Chicks Arrive

Preparation is the cheapest part of brooding and the part most often rushed. The house wants to be cleaned out, washed, disinfected and then left empty and dry before the litter goes in. Chicks placed into a house that still smells of the last batch are starting a fight they did not need.

Heat goes on well before the chicks do. The floor and the litter carry heat slowly, and a brooder switched on an hour before placement will have warm air and a cold floor, which is the worst of both. University of Georgia guidance is explicit that floor temperature matters more than air temperature and that the floor should sit at about 32 degrees on the day chicks are placed. In practice that means lighting the brooder the evening before, or at minimum several hours ahead, and checking the litter with the back of your hand rather than trusting the thermometer on the wall.

Check the draughts while the house is empty and warm. Walk the floor and feel for cold air moving at ankle height, because that is chick height. Block gaps low in the walls, under doors and where the wall meets the floor. Ventilation above chick level is wanted; a draught across the litter is not. If you are still building, the construction details for a poultry house cover the wall height and eave choices that make a brooder easier to hold steady.

Brooding Temperature Week by Week at Chick Level

Temperature in a brooding pen is measured where the chick lives, not where the thermometer happens to hang. Hold it at chick back height, about five centimetres off the litter, and read it in more than one spot. The table below gives the schedule that the ranking technical sources broadly agree on, converted to metric and to chicks per square metre.

Sources disagree at the top end, and it is worth knowing why. Breeding company guidance from H&N International starts the first few days at 34 to 36 degrees with the litter itself above 32, then steps the temperature down by about half a degree a day from day two or three. University of Georgia figures run a little cooler and vary by heat source, because a stove that throws most of its heat downward needs less air temperature to reach the same floor temperature than one that heats the air first. Both land in the same place by three weeks. The practical reading is that the first week sits somewhere in the low to middle thirties, and that you come down gradually rather than in weekly jumps.

Humidity gets a mention because it moves the comfortable temperature. H&N puts the target at 60 to 70 percent, University of Georgia at 50 to 70 percent across the whole grow out. Above 80 percent the comfortable temperature drops by about a degree, and below 40 percent it rises by about a degree. Most of Uganda sits comfortably inside that band without intervention, which is one of the few things the climate hands a poultry farmer for free.

Ambient temperature is the other free gift. In much of the country the daytime air already sits at 22 to 28 degrees, so by week three or four the brooder is doing very little and can come off. In the cooler highlands around Kabale, Kisoro and the Mount Elgon slopes, and on cold wet nights anywhere, heat is wanted for longer and especially between midnight and dawn. Night is when chilling happens, and a brooder that is right at four in the afternoon can be wrong at four in the morning.

Reading Chick Behaviour: The Brooding Skill Worth More Than a Thermometer

If you learn one thing from this brooding guide, learn this. A thermometer tells you the temperature of a point in the air. The chicks tell you whether they are comfortable, which is the thing you actually wanted to know. Extension services and breeding companies converge on the same set of readings, and they are readable from the doorway in about ten seconds.

Do this check at least four times a day in week one, and once in the middle of the night. Noise carries useful information too. A contented brooder is a low murmur. Shrill, insistent, rising cheeping is a cold brooder, and you can hear it through a wall.

Heat Sources for Brooding in Uganda When Mains Electricity Fails

Most published brooding advice assumes an infrared bulb on a dependable circuit. That assumption does not survive contact with a Ugandan smallholding, where load shedding and unscheduled outages are routine and a five hour cut at two in the morning empties a brooder. Brooding here is a question of which heat source you can keep burning, not which is theoretically best.

Whatever you choose, plan for it failing. Farmers running bulbs commonly keep a charcoal stove ready in the corner, unlit, with charcoal beside it, precisely so that a night outage costs twenty minutes instead of a batch. Two smaller heat sources in a large pen also beat one big one, because the chicks then have a choice of spots and a single failure does not leave the whole ring cold.

Carbon Monoxide and Fire Risk When Brooding With Charcoal

This is the part of brooding in Uganda that published guides skip, and it kills chicks and occasionally kills people. Charcoal burning in an enclosed space with restricted air produces carbon monoxide. The gas has no smell, no colour and no taste, it gives no warning at all, and it is heavier and cooler near the floor where chicks sit. A brooder sealed up tight against night cold, with a stove inside it, is the exact recipe. Farmers who open the house in the morning to find a pen of dead chicks with no signs of disease, no wounds and full crops are very often looking at carbon monoxide.

The management response is simple and not negotiable. Never close a brooder completely while a stove burns inside it: keep a permanent opening high in the wall or under the eave so combustion gases leave and fresh air comes in above chick height. Light and burn the stove outside until the charcoal is glowing red with no smoke, then bring it in, because the smoky early phase of a charcoal fire produces the most carbon monoxide. Add fresh charcoal outside too, or accept another smoky phase indoors. If you feel a headache, dizziness or nausea while working in the brooder, leave immediately and open it up, because the gas affects you before it drops the chicks.

Fire is the second hazard and it is just as real. A charcoal stove sits in a room floored with dry wood shavings, coffee husks or chopped straw, which is to say a room floored with kindling. Stand the stove on a sheet of metal, a layer of sand or a bed of bricks, never directly on litter. Guard it with wire mesh so chicks cannot reach it, both because they will crowd a bare stove and burn, and because a chick knocking embers out onto shavings starts a fire in a building with no exit. Keep a bucket of sand or water inside the house. Do not leave a lit stove unattended overnight in a house you cannot get into quickly.

Gas brooders are not exempt. A burner clogged with dust or set up badly burns incompletely and produces carbon monoxide too, which is why maintenance guidance from extension poultry engineers puts cleaning burners between batches on the list. Blow the dust off, keep the orifices clear, and do not enlarge them.

Brooding Space Per Chick and How It Grows Each Week

Space in the brooder is not generosity, it is a working figure, and it is one of the most common causes of loss on Ugandan smallholdings. Penn State extension guidance gives roughly a quarter of a square foot per chick for the first week, which works out at about 0.023 square metres, or about 43 chicks in a square metre. Every two weeks the allowance goes up by about another quarter of a square foot, reaching roughly a square foot, or 0.093 square metres, by six to eight weeks.

Turn that into numbers you can use. One hundred chicks need a little over two square metres of brooding ring in week one, about five square metres by week three, and nine or ten square metres by week six. Five hundred chicks need about twelve square metres in week one and forty seven by week six. Work out the week six figure before you buy the chicks, because that, and not the week one figure, is the number that decides whether your house is big enough. For the full life stocking picture, the poultry house size per number of birds page carries it beyond the brooding period.

Feeder and drinker space grow alongside floor space. The same extension table gives about 2.5 centimetres of feeder edge per chick in week one, about 3.8 centimetres by weeks two and three, and about 5 centimetres from week three, with roughly 1.3 centimetres of drinker edge per chick early on. Chicks that cannot all reach feed at once eat in turns, and the smallest ones eat last and grow slowest, which is how a uniform batch turns into a batch with a tail.

Crowding in a brooder does more than slow growth. It wets the litter, raises ammonia, spreads anything infectious faster and sets up piling, where chicks climb on each other in a corner and the ones underneath suffocate. That is a leading non disease killer and it is entirely a management failure.

Litter and the Chick Guard Ring in the Brooding Pen

Litter has three jobs: insulate the chicks from a cold floor, absorb droppings and moisture, and give the birds something to scratch in. Dry wood shavings are the usual first choice, with coffee husks, chopped straw and rice husks all used where shavings are dear. Sawdust is workable but the fine dust irritates the airway and very fine sawdust gets eaten. Avoid anything mouldy outright, because mouldy litter is a respiratory problem before the chicks have any defences.

Depth is a judgement, not a rule. You want enough that the chicks cannot reach the cold concrete or earth through it and enough to absorb a week of droppings, which in practice means a good handspan rather than a dusting, and more on a concrete floor than on a raised timber one. The test is functional: the litter should stay dry and friable, breaking up when you squeeze it. The moment it cakes into a mat under the drinkers, lift the caked patch out and replace it. Wet litter is where coccidiosis breeds and where ammonia comes from.

The chick guard is a ring of hardboard, cardboard, iron sheet or fine mesh about 40 to 50 centimetres high, set in a circle around the heat source. It does three things. It keeps chicks within reach of heat, feed and water instead of wandering into a cold corner and dying there. It has no corners, so chicks cannot pile into one. And it blocks floor level draughts. Size it from the space figures above, so the ring holds about 40 chicks per square metre in week one, then widen it every few days and take it away entirely at around a week to ten days, once the chicks clearly know where the heat, the feed and the water are.

First Water in the Brooding Period, Including Glucose and Vitamins

Water comes before feed. Chicks arrive from the hatchery or the transporter mildly dehydrated, more so if the trip was long, hot or delayed, and a chick that has not drunk will not eat properly either. Have drinkers filled and standing in the warm house before the box is opened, so the water is neither cold from the tap nor hot from sitting in the sun. Breeding company guidance puts the useful drinking water range at about 20 to 25 degrees.

Dip the beaks of a few chicks from each box as you place them, then let the rest learn from those. Spread the drinkers evenly so no chick is more than a short walk from one, keep them at chick back height, and raise them as the birds grow. Check every drinker by hand at least three times a day in week one. A tipped, blocked or empty drinker is one of the quietest killers in a brooder, because thirst does not look like anything until birds start dying.

Now the glucose and vitamin question, honestly. Adding glucose, or a commercial vitamin and electrolyte product, to the first water is widespread practice in Uganda and across East Africa, and the reasoning behind it is sound enough: a chick that has travelled has used up its reserves and a little readily available energy helps it get going. Evidence that it improves the final result is mixed rather than settled, and it is not a substitute for anything. Clean water at the right temperature, in enough drinkers, matters far more than what is dissolved in it.

Two cautions that matter more than the debate. This page gives no mixing rate, because the rate belongs on the product label and an agrovet or a veterinary officer should confirm it for what you actually bought. And sugared water in a warm brooder is a bacterial culture medium, so it must not be left standing. If you use glucose at all, use it for the first few hours only, then wash the drinkers properly and go back to plain clean water. Sweet water sitting all day in a 33 degree house does more harm than the glucose ever did good.

Starting Chicks on Feed and the Crop Fill Check at 24 Hours

Feed goes in as soon as the chicks are settled with water. Scatter chick mash or starter crumbs on clean paper or in shallow trays rather than only in tube feeders, because a chick pecks at what is in front of it on the ground and the sound of others pecking paper draws it in. Renew the scattered feed for the first three to five days, then move fully to feeders. Which starter you buy, and how long the birds stay on it, depends on whether you are raising broilers, layers or a dual purpose bird, and the breakdown of poultry feed types sets out the differences.

Crop fill is the best diagnostic available to a brooding farmer and almost nobody uses it. The crop is the pouch at the base of the neck. Lift a chick, feel it gently between finger and thumb, and a chick that has eaten and drunk has a crop that is full, soft and rounded. A crop that feels hard and gritty means the chick found feed but not enough water. An empty crop means it found neither.

These targets come from broiler management guidance published by the breeding company Aviagen for its Ross birds, and they work as a general check on brooding conditions for any chick. Fall short and you have found a problem on day one instead of week three. Work through it in order: is the temperature right at chick level, is there a draught, is there enough feeder and drinker space, is the light bright enough for chicks to see feed, and are the drinkers actually delivering water. Every one of those is fixable in an afternoon.

Light and the First 24 Hour Checks in Brooding

Light drives activity, and activity in week one means finding feed and water. Extension guidance recommends the brightest light of the whole cycle during brooding, a minimum of 25 lux at bird level and up to 40 lux in the brood area, with breeding company guidance asking for 40 to 60 lux in week one measured at drinker height. As a working rule, if you cannot comfortably read small print at chick level, it is too dark.

Hours are long at the start, commonly 22 to 24 hours of light for the first two or three days, then a dark period brought in so the chicks learn to rest. Between days seven and ten the hours come down, and by ten to fourteen days the intensity comes down too, toward about 5 lux for the rest of the grow out. Leaving a brooder on maximum light for six weeks makes nervous, restless birds and wastes electricity or fuel.

Dark corners are the problem to hunt for, not overall brightness. A shaded corner behind a stove is where chicks pile, chill and die, and a pen that reads well in the middle can be black at the edge. Walk the pen at night with the lights on and look for shadow.

Disease Prevention During Brooding, and the Antibiotic Question

Nearly everything that protects chicks in the brooder is management rather than medicine. Clean house before placement, dry litter, correct temperature, clean water in enough drinkers, space that grows with the birds, no visitors walking in from another poultry unit, and feed stored dry and off the floor. Do those and the medicine cabinet stays mostly shut.

Vaccination is the other half, and it is the half this page deliberately does not spell out. Which vaccines, at which age, by which route depends on the bird, the hatchery and the disease picture in your district, and getting it wrong is worse than useless. The schedule pages carry it: start with the broiler vaccination schedule or the layer vaccination schedule depending on what you are raising, and have the hatchery that sold you the chicks tell you what they were already given before they left. Your veterinary officer confirms the rest for local conditions.

Now the uncomfortable part. Putting a routine antibiotic course in the drinking water for the first few days is common practice in Ugandan brooding, sold as insurance, and often recommended at the point of sale. It is also a real driver of antibiotic resistance, which is already making poultry disease harder to treat here, and residues in meat and eggs are a food safety question that the person eating your birds has an interest in. Both of those things are true at once and pretending otherwise does not help anyone.

What this page will say is this. A prophylactic course is not a substitute for a warm dry brooder and clean water, and farmers who reach for it every batch are usually paying to cover a management problem they could fix once. Where an antibiotic is genuinely indicated, the decision, the product and the dose belong to a veterinarian or a qualified animal health worker who has seen the birds, and the dose and any withdrawal period before eggs or meat may be sold are on the product label and must be followed exactly. This guide states no product, no dose and no withdrawal period, because an invented number in this position would be dangerous. If birds are dying and you do not know why, the honest next step is diagnosis rather than a guess, and the causes of poultry mortality and how to tell them apart is where to start.

Taking Chicks Off Brooding Heat

Heat comes off gradually, guided by the birds rather than by the calendar. Once the chicks are feathering, from about three weeks, and once the night temperature in the house sits comfortably in the low twenties, the brooder is doing little. Cut the heat back over several days, keep watching the settling pattern each evening, and keep the stove or bulb available for cold wet nights until the birds are fully feathered at around six weeks.

Two practices make the transition safer. Withdraw heat during the warm part of the day first and keep it at night, since night is when chilling happens. And do it on a run of dry days rather than in the middle of a wet spell, because a cold rainy night on a flock you weaned off heat that morning will cost you birds. If the chicks pile and cheep loudly at nightfall, you moved too fast, and putting the heat back for two more nights costs almost nothing.

Brooding Questions Ugandan Farmers Ask

How long do chicks need brooding in Uganda? Plan on two to three weeks of real heat for most of the country and up to four or five weeks in the cool highlands or during a long wet spell. Broilers off heat earlier than layers, because they feather and grow faster. Judge it by feathering and by how the birds settle at night, not by a fixed day number.

Is a charcoal stove safe for brooding chicks? It can be used safely and it is what most Ugandan smallholders use, but only with a permanent ventilation opening above chick height, the stove lit outside until the charcoal glows red with no smoke, the stove standing on metal, sand or brick rather than on litter, and wire mesh around it so chicks cannot reach it. Sealed up tight against the cold with a stove burning inside is how whole pens die of carbon monoxide overnight.

Should I put glucose in the first drinking water? It is common practice and unlikely to harm if handled properly, but it is not what decides the outcome. Clean water at 20 to 25 degrees in enough drinkers matters more. If you use it, use it for the first few hours only, get the mixing rate from the product label or an agrovet rather than from a neighbour, then wash the drinkers and switch to plain water. Sweet water left standing in a warm brooder grows bacteria.

How many chicks fit in my brooder? About 43 chicks per square metre in the first week, dropping to about 21 by weeks two and three and about 11 by weeks six to eight. Size the house on the week six figure, not the week one figure. One hundred chicks need roughly two square metres at the start and nine or ten by six weeks.

What does it cost to brood 100 chicks? The cost sits in four places: the chicks themselves, starter feed for the brooding weeks, fuel or electricity for heat, and litter. Feed and chicks dominate, and both move with the season, the exchange rate and the supplier, so a single figure quoted here would mislead you within weeks. Work from current figures on the broiler chicks price page and the poultry feed price page, and size the feed side with the poultry feed requirements calculator.

Is a gas brooder worth buying instead of charcoal? It depends on batch size more than anything. Above a few hundred chicks a gas brooder saves a lot of labour, holds temperature far more steadily and covers a big ring from one unit, which is why commercial units use them. For a farmer running one hundred birds a few times a year, the purchase price and the cylinder logistics rarely pay back against a jiko that is already in the compound. Either way, price it against the fuel cost over several batches rather than against the purchase price alone.

Why are my chicks dying in the first week when the brooder feels warm? Warm at the thermometer is not the same as warm at the litter, so check at chick level first. Then check for a low draught, a failed or tipped drinker, dark corners where chicks pile, crowding, mouldy litter or feed, and carbon monoxide if you brood with charcoal in a closed house. If the pattern is sudden and affects many birds at once, stop guessing and call a veterinary officer, because a diagnosis on day three is worth more than any treatment on day ten.

Brooding rewards attention rather than spending. If you want to go further, compare current chick and feed prices before you commit to a batch size, check which suppliers near you have the breed you actually want and can confirm what the chicks were vaccinated with before dispatch, and size your feed and heating needs for the whole brooding period in advance rather than buying week to week. Your district veterinary officer and your nearest agrovet are the two people worth knowing before the chicks arrive, not after.