Pasty Butt in Chicks: Causes & Fixes in Ghana

What pasty butt looks like on the chick

Pick up a chick with a sticky vent and you will feel it before you see it. The feathers under the tail are matted and cold, and a crust of dried droppings sits around the opening. Sometimes it is a thin smear. Sometimes it is a plug as big as a grain of rice, and the chick peeps or strains as it walks.

The mess itself is not what kills the chick. The danger is what it blocks. A sealed vent stops the chick passing droppings, so the gut backs up, the bird stops eating, and it goes downhill over hours. Farmers who call us about a hunched chick on day three almost always describe the same picture: a bird standing apart from the brood, head down, with a dirty bottom. That is pasty butt until proven otherwise.

Look at the whole brood before you pick anything up. One pasted chick in a box of 50 can be a poor start or a knock in transit. Five or six pasted chicks in the same ring is a brooder problem, and cleaning them one by one will only buy you a few hours.

Why chicks get pasted in the first week

Pasting starts with loose droppings. Watery stool sticks to the feathers, and as it dries it forms the seal. So the question to ask is not how to clean the vent but why the droppings went loose in the first place.

• Chilling. A cold chick digests slowly, crowds into a corner and passes watery droppings that stick.
• Dehydration after transport. The first drink matters more than the first meal. A chick that has not drunk for hours is already behind.
• Sudden feed changes. Switching from crumble to a coarse mash, or to a new brand, can upset the gut for a day or two.
• Wet litter and spilled drinkers. Droppings mixed with water turn into paste, and the chicks walk through it.
• Infection. Coccidiosis and some bacterial infections cause diarrhoea. Those need your vet, not a bowl of warm water.

Most of what we see on a healthy arrival is the first three. A chick from a clean hatch that is pasted on day one usually had a rough journey or a cold first night. If the box sat in the sun before it reached the farm, or the brooder was still warming up when the chicks went in, you have your answer without any lab work. For the transport side of this, see our guide to chick mortality in transit.

Fix heat and water before you touch a chick

Before you handle anything, check three things: the temperature at chick height, water access, and the litter under the drinkers. In that order.

Temperature is where most farmers go wrong. A thermometer hung at the top of the ring reads warmer than the floor where the chicks actually stand. Put the thermometer at about the height of a chick's back, read it at the edge of the ring and at the middle, and write both numbers down. Chicks that spread out and pant are too hot. Chicks that bunch under the lamp are too cold. Chicks spread evenly around the heat, with room to step away, are about right. If you are still setting up, our piece on setting up a brooder ring shows where to place the lamp.

Water has to be where a one-day-old chick can reach it without climbing. Use shallow drinkers with clean pebbles or a chick drinker base in the first days, so the chicks cannot drown and do not step into the water. Refill with fresh water several times a day. A drinker sitting on bare litter turns the ground around it into the sticky paste that causes pasting.

If the brooder has been running for less than four hours before the chicks arrive, the floor is still cold. Chicks set down on cold litter chill quickly, and a chilled chick is the one most likely to start pasting by morning.

How to clean a pasted chick without hurting it

Cleaning is necessary, but it is delicate work. Do not pull at a dried plug. You will tear the skin around the vent and open a wound that goes bad within a day.

1. Hold the chick firmly but gently in a cupped hand, upright and supported, so you can see the vent.
2. Dip the vent area into a small bowl of warm water, not hot, and wait a few seconds for the crust to soften.
3. Wipe with a soft cloth or cotton wool, always moving away from the body. Use a clean piece for each chick.
4. If a hard plug stays, soak it longer rather than scraping harder. Most soften within a minute or two.
5. Dab the area dry with a soft towel. A wet chick in a draught loses heat fast.
6. Put the chick in a small box under the lamp for about ten minutes, then return it to the brood.
7. Check it again within an hour. If the vent is pasted again, the cleaning was never going to fix the cause.

Wash your hands between chicks, or at least change gloves. Pasting spreads through shared cloths, dirty hands and the water bowl, and a bowl used for twenty chicks is a bowl of germs by the tenth. Change the water every few birds.

Do not put anything into the bath unless your vet has told you what to use and how much. Guessing at salt, sugar or disinfectant strength can do more harm than the pasting did in the first place.

Feed changes and the first days after arrival

Feed is the next suspect after heat and water. Our rule for buyers is simple: change one thing at a time, and watch the droppings for two days before you change anything else.

A crumble or fine starter is the right first feed for most chicks, because it is easy to pick up and does not clog the crop. Wet mash sticks to the vent and gums up the beak. Keep the feed dry and fresh, and spread it on clean paper or a shallow tray for the first days, so the chicks learn to eat it and do not scatter it into the litter. For the wider logic of mixing feed, our guide to poultry feed formulation basics is a good next read.

After a long journey a chick may ignore feed for several hours. That is normal. You want to see the chick drink, then peck at feed, then walk about. A brood standing still in one corner twelve hours after arrival is telling you something.

• Ask what the chicks were fed before they left, and keep to it for the first week if you can.
• If you must change feed, mix a little more of the new one into the old every day for three to four days.
• Take out wet or soiled feed quickly. Leftover mash turns sour within hours in Ghana's heat.

If you are raising broiler chicks, the same logic carries into the grow-out. The pasting you see in week one usually comes from the feed or water set-up, not from the feed bag itself.

Harmattan nights and rainy-season damp

Ghana gives you two different routes to the same pasted chick. In the harmattan, roughly December to February, the nights turn cool and the air carries fine dust. Chicks crowd under the heat to stay warm, and the dust dries the litter until it lifts into the drinkers. In the rainy months, usually April to July in the south with a shorter spell around September to November, the air is heavy and spilt water soaks into litter that never fully dries.

Use this table to match what you see to the likely cause and your first move.

In the rains, keep the brooder on a raised, drained floor if you can. A shed floor that holds a puddle after a storm will hold it under your drinkers too, and the chicks will find it. The same damp is what makes a poorly built house a problem later, which is why our guide to broiler house setup starts with drainage.

When pasting is a sign of something worse

A vent that stays pasted after careful cleaning, or comes back within hours, means the chick is losing fluid faster than it takes in. Look for a hunched bird with ruffled feathers, eyes half shut, a chick that stops moving when the brood moves, or a vent that is swollen and red rather than simply dirty.

Diarrhoea that is green, bloody or watery across several chicks needs your vet. Some causes of chick diarrhoea are infectious, and a warm-water wash will not reach them. Your vet may want to see a dead bird, so ask how they want one handled before you bring it in.

Do not reach for a bottle from the shop shelf. Your vet decides whether the flock needs any treatment, which product to use, and how it is given. Follow your vet's advice on timing and amounts, including for water additives and electrolytes. If the advice is unclear, phone and ask again before you mix anything.

A checklist that stops most pasting before it starts

Most pasting is prevented in the first forty-eight hours. This is the list we would run through before a box goes out from Kasoa, and it applies whether your chicks come from us or somewhere else.

• Brooder heated and steady for at least four hours before the chicks arrive.
• Thermometer at chick height, read at the edge and the centre.
• Drinkers clean, filled with fresh water, and raised off wet litter.
• Starter feed dry, fresh, and ready on paper or trays.
• Litter dry and fresh, and never soggy under the drinkers.
• No draught at chick height, but enough air moving to keep ammonia down.
• A separate pen or box ready for any chick that needs cleaning or rest.
• A morning and evening check of droppings and vents for the first week.

If your chicks are coming by courier or bus, plan for the first drink on arrival. We cover that in our guide to transporting day-old chicks. The time between the box opening and the first drink is where a lot of early pasting begins.

What to tell your vet and what to bring

When you phone your vet, the first question is usually how many. Give a number. Ten pasted chicks out of 50, with six dead by morning, is a different call from two chicks pasted on day one.

Tell them the age of the chicks, the day they arrived, the feed they are on, how long they were in the box, the brooder temperature at chick height, what the droppings look like, and how many have died. If you kept the batch record from the hatchery, have it open beside you. It shows which vaccines went in and when, and the vet will want that. The chick vaccination guide explains what each entry means.

Then ask two things: what to do in the next six hours, and what would turn this into an emergency. Write the answers in your record book. You will need them if the same thing happens to the next batch, and a clear record is how you learn from it. Our record keeping guide shows a simple layout.

If you are not sure who to call, ask other farmers nearby and your local veterinary office. For questions about the chicks themselves, our frequently asked questions cover arrival, counts and replacements.

A worked example: 50 chicks and one bad morning

Here is a realistic sequence with real numbers, so you can see how a small problem grows.

A farmer near Kasoa takes delivery of 50 Ross 308 chicks. At the starting price of GH₵20 each, that is GH₵1,000 for the box, and the farmer has every reason to protect it. The chicks arrive in the afternoon, all 50 alive, and go under the lamp. By the next morning, six are pasted and two are standing outside the ring. The lamp hangs high, and the thermometer at the top reads a comfortable 32 °C, but at the edge where the chicks sit it is noticeably cooler. The drinker sits on bare litter that soaked up overnight.

The farmer lowers the lamp, moves the drinker onto a dry tray, cleans the six chicks, and checks the brood every two hours. By afternoon, one chick is still pasted and the rest are eating. The loss is nothing. The cost is a few hours, a bowl of warm water and a torch at night.

Now take the other version of that morning. The same six chicks are pasted, twelve more by evening, and four are dead. Lowering the lamp is no longer enough. That is the day to phone the vet, because the pattern points to an infection that a cloth cannot solve.

When you are planning your first batch, the current chick prices help you budget, and the order form lets you pick your breed and box size. Delivery cost is confirmed before you pay, and you can also collect at the farm. For a fuller look at what a first batch costs, see our budget guide for starting a poultry farm.

Questions farmers ask