28-Day Duck Egg Incubation Guide: Step-by-Step

28-Day Duck Egg Incubation Guide

Hatching duck eggs is an exciting hands-on experience for families, classrooms and young learners. Over approximately 28 days, a fertilized duck egg develops into a duckling ready to hatch.

Duck eggs generally take about a week longer to hatch than chicken eggs, so maintaining stable incubation conditions and being patient are especially important.

For Hatchables duck hatching kits, follow this guide along with the instructions provided with your rental.

Duck Egg Incubation at a Glance

Incubation period: approximately 28 days
Temperature: 37.5°C / 100°F
Humidity Days 1 to 24: 45% to 60%
Lockdown begins: Day 25
Lockdown humidity: approximately 65% to 75%
Expected hatch: around Day 28

For standard domestic duck eggs, turning normally continues until Day 25. The final few days are the hatching period, when the eggs should remain undisturbed.

Day 1: Set Up the Incubator

Place the incubator on a stable, level surface away from direct sunlight, heating vents, open windows and drafts.

Before adding the eggs:

  • Set the incubator to 37.5°C / 100°F
  • Bring the humidity to 45% to 60%
  • Make sure the incubator is level
  • Confirm the automatic egg turner is operating
  • Make sure the lid closes correctly
  • Check that the water system is working

With a Hatchables kit, allow the incubator to warm and stabilize for approximately three hours before placing the eggs inside.

Keep the fertilized eggs in their carton while the incubator is warming.

Day 1: Add the Duck Eggs

Once the incubator has stabilized, gently place the eggs inside.

Handle them with clean, dry hands and avoid shaking or dropping them.

After the eggs are placed inside:

  • Close the incubator
  • Allow the temperature to recover
  • Keep humidity between 45% and 60%
  • Make sure the automatic turner is working
  • Avoid repeatedly opening the lid

A temporary temperature drop after adding cooler eggs is normal. Give the incubator time to recover before changing the settings.

Days 2 to 24: Keep the Incubator Stable

During most of the incubation period, your main responsibility is keeping the environment consistent.

Check the incubator daily and make sure:

  • Temperature stays around 37.5°C
  • Humidity stays between 45% and 60%
  • The automatic turner continues operating
  • The water supply has enough water
  • The incubator remains away from drafts and direct sunlight

Small fluctuations can occur. Avoid constantly changing settings in response to every minor change on the display.

Developing embryos also require adequate ventilation as they grow because oxygen passes through pores in the eggshell and carbon dioxide leaves through those pores.

Candling Duck Eggs

Candling allows you to look inside a developing egg by shining a bright light through the shell.

Hatchables kits include a candling light.

When candling:

  • Use a dark room
  • Wash and dry your hands
  • Handle each egg gently
  • Keep candling sessions brief
  • Return the eggs to the incubator promptly

As development progresses, you may see blood vessels, a dark embryo and eventually movement inside the egg.

Not every fertilized egg will develop or hatch successfully. Some variation is normal even when the incubator is maintained carefully.

Day 25: Duck Lockdown Begins

On Day 25, prepare the eggs for hatching.

At lockdown:

  • Stop turning the eggs
  • Remove or disable the automatic turner
  • Place the eggs in their hatching position
  • Raise humidity to approximately 65% to 75%
  • Keep the temperature around 37.5°C / 100°F
  • Keep the incubator closed
  • Stop candling

Poultry-extension guidance similarly recommends stopping the turning of standard duck eggs after Day 25.

Once lockdown begins, try not to open the incubator unless necessary. Opening the lid can quickly reduce humidity during an important stage of the hatch.

Days 26 to 28: Preparing to Hatch

During the final days, the duckling positions itself inside the egg and prepares to break through the shell.

You may notice:

  • Slight rocking of the egg
  • Quiet sounds from inside
  • A small crack or hole in the shell

That first visible hole is called an external pip.

Do not expect the duckling to hatch immediately after you see the first pip.

Ducklings often rest for long periods during the hatching process.

What Happens After a Duckling Pips?

After externally pipping, the duckling slowly works its way around the shell.

This process can take time because hatching requires a large amount of energy.

Avoid:

  • Opening the incubator repeatedly
  • Pulling shell pieces away
  • Trying to help the duckling hatch without guidance
  • Assuming something is wrong simply because progress pauses

A duckling may work for a while and then rest before continuing.

If you are using a Hatchables kit and are concerned about a hatch, contact Hatchables before attempting to assist.

After the Duckling Hatches

A newly hatched duckling will normally appear wet and tired.

Leave it inside the incubator while it dries, rests and becomes fluffy.

Once the duckling is dry and ready to move, transfer it to the brooder.

The brooder should have:

  • A suitable heat source
  • Duck starter feed
  • Clean drinking water
  • Fresh bedding
  • Enough room for the ducklings to move around comfortably

Hatchables duck hatching kits include the brooder equipment, feed, bedding and other supplies required for the rental experience.

What If the Duck Eggs Do Not Hatch on Day 28?

Day 28 is the typical hatch date for many standard domestic duck breeds, but it is not an exact deadline. Extension guidance lists approximately 28 days for standard ducks, while some species such as Muscovy ducks require substantially longer incubation.

A duckling may hatch slightly before or after the expected date.

If hatch day arrives and the eggs have not hatched:

  • Keep the incubator closed
  • Maintain lockdown temperature and humidity
  • Watch for pips or movement
  • Avoid unnecessary intervention

Hatchables customers can contact us for guidance if they are unsure about what is happening.

Duck Hatching Kits for Families and Classrooms

Hatchables provides hands-on duck hatching experiences for families, schools, daycares and educators in Ontario.

Our duck hatching kits include fertilized eggs, an incubator, brooder equipment, feed, bedding, a candling light, educational resources and support throughout the experience.

Duck hatching kits are available seasonally.

Ready to hatch ducklings? Explore our chick and duck hatching kits and choose an available rental date.