How to run a small breeder flock in Ghana: cock to hen ratios, breeder feed, nest management, checking fertility on a plate, age effects and replacing males.
Halaal Farms Ghana team4 October 2026 · 13 min read
Key points
Keep about one cock to eight to ten hens for dual-purpose and heavy birds, and one to ten to twelve for light layer-type hens.
Commercial broilers and layers are hybrids and do not breed true; pure breeds and local chickens do.
Feed a breeder ration with a breeder premix, because ordinary layer mash is not made to support an embryo for 21 days.
Check fertility by opening a dozen fresh eggs and looking for the ring-shaped germinal disc, instead of waiting three weeks for a hatch.
Fertility and hatch are best from roughly 30 to 45 weeks of age and fall as hens and especially cocks grow older.
A fertile egg costs more to produce than a table egg, and the reasons can be counted. The cocks eat every day and lay nothing. The feed has to carry more vitamins and minerals than layer mash. A share of every day's eggs is too small, too dirty or too misshapen to set. And of the eggs you do set, some will be infertile however well you manage. A breeder flock is worth keeping only if you run it so that each of those losses stays small.
That is a different job from keeping layers. With layers you manage for the number of eggs. With breeders you manage for the number of good chicks that come out of them three weeks later, and the birds decide most of that before an egg ever reaches the incubator.
First decide what you are breeding, because hybrids do not breed true
Many people start a breeding pen with whatever birds they have, and are disappointed by the chicks. The reason is genetic, and it is better to understand it before you buy a single cock.
Commercial broilers such as Ross 308 and Cobb 500, and commercial layers such as Hy-Line and Lohmann, are hybrids. Each is the final cross of separate male and female parent lines that breeding companies keep and select over many generations. The day-old chick you buy is the end product. If you mate those birds to each other, the offspring split in all directions for growth, size and laying, and do not match their parents. Commercial layers are also sold as pullets only, with no matching male, and broilers left on full feed to adulthood become too heavy to mate. The coloured dual-purpose birds, Sasso, Kuroiler and Noiler, are also the product of planned crosses. Their offspring are useful, hardy birds for your own use, but they will not be uniform and should not be sold as the named product.
What does breed true on a small farm:
Pure breeds such as Australorp and Plymouth Rock, where a cock and hens of the same breed give chicks like themselves.
Local chickens, selected over time for the traits you want.
Planned crosses, especially an improved cock over local hens, which gives bigger, better-laying offspring that still cope with village conditions. Our article on improving local chicken production covers that route.
Guinea fowl, local turkeys and quail, which are commonly bred on the farm.
If you need foundation stock, Halaal Farms supplies Australorp and Plymouth Rock chicks, along with Sasso, Kuroiler, Noiler and cockerel chicks. Buy the cocks and the hens from different hatches or sources where you can, so that they are not closely related.
How many cocks: ratios that work
The ratio has to be right in both directions. Too few males and hens go unmated. Too many and the cocks spend their energy fighting, interrupt each other's matings and harass the hens until they hide on the perches and stop coming down to feed.
Type of bird
Males to females
Notes
Light, layer-type chickens
1 to 10 or 12
Active males cover more hens.
Dual-purpose and local chickens
1 to 8 or 10
The usual case on small farms.
Heavy meat-type chickens
1 to 8 or 10
Heavier males are less active and need good legs and feet.
Guinea fowl
1 to 4 or 5
Guinea fowl tend to pair, so they need more males.
Turkeys (local type)
1 to 8 or 10
Large broad-breasted strains are usually bred by artificial insemination.
Japanese quail
1 to 2 or 3
Kept in small groups.
Two practical points for small pens. First, a flock with a single cock has no reserve. If he goes lame or falls sick, fertility drops to nothing within three weeks. Rear at least one spare male and keep him in a separate pen. Second, cocks that grew up together tolerate each other far better than strangers put together as adults. If you plan two or three cocks for 20 to 30 hens, rear them as a group.
The hens' backs tell you whether the ratio is working. In a flock that is mating well, many hens show some feather wear on the back and behind the wings. If hens are bare and scratched, or huddle on the perches all day, there are too many males. If every hen has perfect back feathers months into lay and the eggs are coming up clear, too little mating is happening.
Choosing, watching and replacing males
A cock supplies half the genes of every chick, so choose him with more care than any single hen. Look for a bright red comb and wattles, clear eyes, an upright stance, straight legs and toes, a straight keel and beak, and clean, uncracked foot pads. Handle him: he should feel firm and muscular, not thin and not heavy with fat. A male that is working has a large, moist, reddish vent. A small, dry, pale vent belongs to a bird that is not mating.
Then watch. Most mating happens in the early morning and again in the late afternoon. Fifteen minutes beside the pen at about five o'clock shows which cocks are mating, which are only fighting and which are being chased away from the hens. Remove a male that is lame, overweight, has swollen foot pads or never mates. He is eating feed and blocking a better bird.
Male fertility declines with age sooner than most people expect. Cocks are usually at their best in their first year. From about a year old onward, the flock's fertility falls unless you act. The standard remedy is to add young, fully mature males (at least six months old and as big as the old ones) to the flock, several at a time so the old males cannot gang up on one newcomer, and to take out the worst of the old ones. Bring replacements only from a flock you know to be healthy, and keep them apart for two to three weeks first.
Replacement is also your guard against inbreeding. If you keep back a son of the flock to mate his own mothers and sisters, and repeat that for a few generations, hatch falls, chicks weaken and deformities appear. Bring in or exchange unrelated cocks every year or two.
When a flock's eggs are worth setting
The age of the hens changes the egg, and the egg decides the chick.
First weeks of lay. Eggs are small, yolks are small and chicks are small and less forgiving in the brooder. Wait until the hens have been laying for four to six weeks and eggs from improved breeds reach about 50 grams.
About 30 to 45 weeks of age. The best period. Fertility is at its highest, shells are strong and eggs are a good size.
Past about 50 to 55 weeks. Eggs get larger while shells get thinner, hens mate less and old males lose fertility. Both fertility and hatch of fertile eggs drift down.
Commercial breeder farms replace the whole flock after one laying cycle. On a small farm you can keep good hens into a second year for your own chicks, provided you put young cocks with them and accept fewer settable eggs. Which eggs to pick from each day's collection, and how to hold them until setting, is covered in selecting and storing hatching eggs.
Breeder feed is not layer mash
An embryo has no feed for 21 days except what the hen put into the egg. Layer mash is formulated to produce table eggs at the lowest cost, with vitamin and trace mineral levels that keep a hen laying but are not designed to carry an embryo to hatch. Breeder rations use a breeder premix with higher levels of vitamins A, D3 and E, the B vitamins (riboflavin, B12, biotin, folic acid and pantothenic acid in particular) and trace minerals such as manganese, zinc and selenium.
The hen shows little sign when these run short. She goes on laying. The shortage appears in the incubator as embryos that die part-way through, weak chicks and chicks with curled toes or poor down. If a break-out of unhatched eggs keeps showing deaths in the middle of incubation, feed is one of the first things to question, as explained in troubleshooting a poor hatch.
What to do in practice:
Tell your feed miller or concentrate supplier that the feed is for hens producing hatching eggs, and ask for a breeder premix or breeder mash. Do not assume layer concentrate will do.
Use feed fresh. Vitamins break down in heat and humidity, so mill or buy what you will use in three to four weeks and store it dry and off the floor.
Refuse mouldy maize. Mould toxins lower hatch and weaken the chicks that do come out.
Provide limestone grit or oyster shell for the hens. Shell strength matters even more for an egg that must last 21 days in a machine.
Control body condition. Dual-purpose birds given unlimited feed run to fat, and fat hens lay and mate poorly while fat cocks go lame. Feed a measured amount once or twice a day (for medium-sized birds, roughly 110 to 130 grams each as a starting point), handle a sample of birds every month and adjust.
Give enough feeder space for every bird to eat at once, or the dominant birds take the extra.
Nests that give you clean eggs
A dirty egg is a poor hatching egg, and you cannot safely wash it clean. Clean eggs are made in the nest.
Provide one nest box for every four or five hens. A box about 30 cm wide, 30 cm deep and 35 cm high suits most chickens. Fix the nests 45 to 60 cm off the floor with a landing rail in front, on the darker side of the house, and keep 5 to 8 cm of dry shavings in each. Top up weekly and replace the litter at once if an egg breaks in it.
Put the nests in about two weeks before the first eggs are due so the pullets explore them. In the first weeks of lay, pick up floor eggs many times a day and block the dark corners where hens like to lay, because a hen that learns to lay on the floor keeps doing it. Fit perches higher than the nests, or close the nests at dusk and open them at first light, so birds do not sleep and leave droppings in them. Lift broody hens off the nests, since they warm the eggs laid under them and start embryos developing too early.
Dry litter over the whole floor matters as well. Hens with muddy feet carry that mud straight onto the eggs.
Checking fertility without waiting 21 days
You do not need an incubator to find out whether the cocks are doing their work. Once a month, and whenever a hatch disappoints, take 10 to 20 fresh eggs from that day's collection and break each onto a white plate. On the surface of every yolk is a pale spot, the germinal disc. If it is underneath, roll the yolk gently with a spoon.
Infertile: a small, solid white spot about 2 mm across, often with an uneven edge.
Fertile: a larger spot, about 4 to 5 mm across, perfectly round, with a clear centre and a white rim, like a tiny ring or doughnut.
Put a fertile and an infertile egg side by side once and you will not confuse them again. The eggs are still fine to cook. Count the fertile ones: nine or more in every ten is the level to aim for in a flock in its prime. If the figure is lower, go back through the list: ratio, male condition and age, heat, body weight, parasites such as lice and mites round the vent, and disease.
Keep a simple record for each pen: eggs laid, eggs fit to set, fertility from the plate test, and chicks hatched. With two or more pens, the record shows which cock or group is letting you down.
Brown eggs in a cardboard carton.
Health: some diseases travel inside the egg
A sick layer flock gives you fewer eggs. A sick breeder flock gives you sick chicks, because certain infections pass from the hen through the egg to the chick. Pullorum disease and fowl typhoid (both caused by Salmonella) and mycoplasma infections are the important examples. Chicks from infected hens can hatch already carrying the organism and spread it through the brooder.
Three things follow. Start with stock from a source you trust. Ask your veterinary officer about blood testing breeders for pullorum before you begin hatching from them, and act on the advice you are given. And keep the breeder pen under stricter rules than the rest of the farm: no birds added from markets, no visitors' birds, and a fenced run if the birds go outside, so that neighbours' cocks neither mate your hens nor bring infection.
Vaccination does a second job in breeders. A well-vaccinated hen passes antibodies into the yolk, and these protect her chicks through their first weeks against diseases such as Newcastle and Gumboro. For that reason breeder programmes usually include extra booster vaccinations before lay. The programme for your area should come from a vet. Our overview of vaccination schedules in Ghana explains the general pattern.
Light, heat and the seasons
Day length in Ghana stays close to 12 hours all year, which is less than hens need for sustained laying. Most breeder keepers add light in the early morning or evening to give 14 to 16 hours in total, and never let it shorten while the flock is in lay. A solar lamp or a rechargeable bulb is enough where the mains is unreliable. The principles are in lighting programmes for chicks and growing pullets.
Heat hits fertility from both sides. Cocks mate less and their semen quality falls. Hens eat less, so shells thin and egg size drops. Expect a dip in the hottest weeks, around February to April, and soften it with open, airy housing, shade, cool clean water and feeding in the early morning and late afternoon. Guinea fowl add a seasonal pattern of their own, laying mainly during the rains, so their eggs come in a concentrated run.
Give breeders more floor space than layers, about three to four birds to the square metre on deep litter, so that mating is not obstructed.
What a fertile egg costs you
Work the sum before you commit to a breeding pen. The figures below are examples only. Put in your own.
Step
Example
Birds
20 hens and 2 cocks
Feed a day at 125 grams each
22 × 125 grams = 2.75 kg
Feed cost a day, if feed costs GH₵ 8 a kg
GH₵ 22
Eggs a day at 65 percent lay
13
Eggs fit to set, if 90 percent pass selection
About 11.7
Feed cost for each settable egg
GH₵ 22 ÷ 11.7 = about GH₵ 1.88
Chicks, at 90 percent fertility and 75 percent hatch of fertile
About 7.9 a day
Feed cost for each chick
GH₵ 22 ÷ 7.9 = about GH₵ 2.78
That is breeder feed alone. Add the cost of rearing the birds for five or six months before the first egg, vaccines, labour, housing, and the electricity and backup power for incubation. Then see how the answer changes if fertility slips to 70 percent, and you will understand why the cocks deserve your attention. The poultry profit calculator helps with the growing side of the sum once the chicks are out.
For many farmers the honest result is that breeding suits birds that are hard to buy or expensive, and that buying suits the rest. Halaal Farms Ghana supplies fertile hatching eggs if you want to incubate without keeping cocks, and day-old chicks if you want to skip incubation altogether, delivered to all 16 regions. Call 024 915 1503 or send the order form, and ask us anything about setting up a breeding pen. Advice is free.
Questions farmers ask
How soon after adding a cock are the eggs fertile?
A few fertile eggs can appear within two or three days of the first matings, but the flock as a whole takes longer to reach good fertility. Wait about two weeks after introducing the cock before you start saving eggs for hatching. If you are replacing one cock with another and want to be sure which is the father, wait three weeks.
How long do hens stay fertile after the cock is removed?
Hens store sperm in small glands in the oviduct, so they go on laying fertile eggs after the cock has gone. Fertility stays fairly good for about a week, then falls away over the second and third weeks. This is why losing your only cock does not stop fertile eggs overnight, and why changing breeds needs a three-week gap.
Can I hatch eggs from my Ross or Cobb broilers?
It is not worthwhile. Commercial broilers are the final cross of several specialised parent lines, so their offspring are uneven and do not match the parents. Broilers kept on full feed to breeding age also become too heavy to mate and lay well. Fertile broiler hatching eggs come from separate parent-stock flocks managed under strict feed control.
Do I need a cock for my hens to lay eggs?
No. Hens lay just as many eggs without a cock, and table-egg farms keep none. A cock is needed only when you want the eggs to hatch. If you are not incubating, keeping cocks simply adds feed cost, noise and wear on the hens' backs.
Written by the Halaal Farms Ghana team. We hatch and import day-old chicks at Opeikuma, Kasoa, and deliver to all 16 regions. This article is general guidance for farmers. For diagnosis and treatment of sick birds, speak to a vet or your district veterinary office.
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