Dayal Poultry Appliances - Hatchery Knowledge Center #Poultry Incubation

Should You Wash Dirty Hatching Eggs Before Incubation?

Sun, 23 Aug 2026 22:37:06 +0530

Clean, properly handled hatching eggs are an important part of achieving good hatchability. However, one common question among poultry farmers is: Should dirty hatching eggs be washed before placing them in an incubator?

In general, washing hatching eggs is not recommended. The eggshell has a natural protective layer called the cuticle, which helps prevent bacteria and other microorganisms from entering through the microscopic pores in the shell.

Why Should Hatching Eggs Not Be Washed?

When an egg is washed incorrectly, particularly with water that is colder than the egg, the pressure difference can encourage contaminated water and bacteria to move through the shell pores.

Washing can also remove or damage the egg's natural protective coating. This may increase the possibility of bacterial contamination during storage and incubation.

For this reason, prevention is better than trying to clean heavily contaminated eggs later.

How Can You Keep Hatching Eggs Clean?

Good hatchery management should begin before the eggs reach the incubator:

Keep nesting areas clean and dry.

Collect hatching eggs frequently.

Avoid allowing eggs to remain in dirty litter.

Handle eggs carefully to prevent cracks and shell damage.

Store eggs in clean conditions.

Keep hatching eggs separate from heavily contaminated eggs.

What If an Egg Is Very Dirty?

If an egg is heavily soiled with manure or other contamination, it is generally better to avoid using it for hatching whenever possible rather than washing it and placing it with clean eggs.

If contaminated eggs must be incubated, they should be handled separately to reduce the possibility of contaminating clean eggs and other equipment.

The Key to Better Hatchability

The best approach is not to depend on egg washing. Clean nesting facilities, frequent egg collection, proper storage, good sanitation and careful egg handling are the foundations of successful incubation.

For commercial hatcheries, maintaining clean eggs from collection through setting can significantly improve overall hatchery hygiene and help support consistent hatching results.

How to Properly Set Hatching Eggs in an Incubator

Sun, 23 Aug 2026 22:29:40 +0530

Setting eggs correctly is one of the first and most important steps in successful artificial incubation. Proper handling and positioning of eggs helps maintain embryo development and supports good hatchability.

1. Handle Eggs Carefully

Before setting the eggs, inspect them and select only good-quality hatching eggs. Avoid eggs with cracks, severely damaged shells, abnormal shapes, or excessive contamination.

Handle eggs gently to avoid damaging the shell or internal structures.

2. Place Eggs Correctly in the Tray

When placing eggs in the incubation tray, the small or pointed end should face downward, with the larger end facing upward.

Correct positioning helps keep the air cell in the proper position as the embryo develops.

Dayal incubators are designed with suitable incubation trays that allow eggs to be positioned securely without additional packing.

3. Load the Incubation Trays

Once the eggs have been placed in the trays, carefully load the trays into the incubator.

Push each tray properly into its designated position and ensure that the trays are seated correctly before starting the incubation cycle.

For commercial incubators, following the tray arrangement and loading sequence specified for the particular machine is important for maintaining uniform airflow and temperature.

4. Automatic Egg Turning

Egg turning is essential during most of the incubation period. Regular turning prevents the developing embryo from sticking to the shell membrane and helps promote proper development.

In an automatic incubator, the turning mechanism performs this operation without requiring manual handling of individual eggs.

The turning schedule and angle should be maintained according to the incubator manufacturer's specifications and the type of eggs being incubated.

5. Avoid Unnecessary Handling

Once the eggs have been correctly loaded, avoid repeatedly opening the incubator or manually handling the eggs.

Frequent opening can cause unnecessary fluctuations in temperature, humidity, and airflow, which may affect embryo development.

6. Follow the Incubator Settings

After loading the eggs, set the incubator according to the recommended requirements for the species being incubated. Temperature, humidity, ventilation, and egg turning should remain within the appropriate range throughout incubation.

For commercial incubation, consistent environmental conditions are especially important when handling large numbers of eggs.

7. Monitor the Incubation Process

During incubation, regularly monitor the machine's temperature, humidity, ventilation, and turning system. Any unusual changes should be investigated promptly.

Proper monitoring helps identify problems early and can improve the consistency of hatch results.

Conclusion

Correct egg setting provides the foundation for successful incubation. Select good-quality eggs, position them correctly with the small end downward, load the trays properly, and maintain automatic turning and stable incubation conditions. With proper egg handling and a well-managed incubator, poultry producers can achieve more consistent hatchability and healthy chicks.

How to Properly Pick and Store Hatching Eggs for Better Hatchability

Sun, 23 Aug 2026 19:11:27 +0530

The quality of hatching eggs has a major impact on the success of an incubation program. Even with a high-quality incubator, poor egg collection, handling, or storage can reduce hatchability. Proper handling from the time an egg is collected until it is placed in the incubator helps maintain embryo viability and improves overall hatching performance.

1. Collect Hatching Eggs Regularly

Hatching eggs should ideally be collected at least once or twice a day, and more frequently during very hot or cold weather. Regular collection helps reduce the chances of eggs becoming dirty, cracked, overheated, chilled, or contaminated.

Always handle eggs carefully and avoid dropping or knocking them against hard surfaces.

2. Select Good-Quality Eggs

Before storing eggs for incubation, inspect them carefully. Select eggs that:

Have a normal shape and size

Have a clean and intact shell

Are free from cracks and hairline fractures

Do not have excessive dirt or contamination

Come from healthy breeding birds

Very small, oversized, severely misshapen, or damaged eggs should generally be avoided for incubation.

3. Keep Eggs Clean

Clean eggs are important for successful incubation because bacteria on the shell can potentially enter through the pores and contaminate the developing embryo.

Avoid washing hatching eggs unnecessarily. Washing can remove the egg's natural protective coating, known as the bloom or cuticle. If cleaning is necessary, use an appropriate egg-cleaning procedure and avoid aggressive scrubbing.

4. Store Eggs With the Small End Down

Place hatching eggs in egg trays with the small end pointing downward and the larger end upward. This helps keep the air cell in the correct position.

During storage, eggs can also be gently tilted or turned periodically to reduce the risk of the contents sticking to the shell membrane.

5. Maintain Suitable Storage Conditions

Hatching eggs should be stored in a cool, stable environment away from direct sunlight and large temperature fluctuations.

For chicken hatching eggs, a storage temperature around 15–18°C (59–64°F) is commonly suitable for short-term storage. Humidity should also be controlled to limit excessive moisture loss.

Avoid freezing the eggs or storing them in a conventional household refrigerator at very low temperatures.

6. Avoid Long Storage Periods

The longer fertile eggs are stored, the greater the potential reduction in hatchability. Whenever possible, set eggs in the incubator as soon as practical, preferably within about a week of collection.

If eggs must be stored for longer, maintaining proper temperature, humidity, positioning, and regular turning becomes even more important.

7. Bring Eggs to Incubation Temperature Gradually

Before placing stored eggs into the incubator, allow them to gradually come toward the appropriate room temperature. This helps prevent sudden temperature changes and condensation on the shell.

Do not place very cold eggs directly into a warm incubator.

8. Keep Hatching Eggs Separate

Store hatching eggs in a clean area separate from the hatchery, dirty eggs, and other sources of contamination. Good hygiene throughout the egg-handling process helps reduce bacterial contamination and supports better hatch results.

Conclusion

Successful incubation starts well before eggs enter the incubator. Proper collection, selection, cleaning, storage, temperature control, and handling of fertile eggs can make a significant difference in hatchability. By following good egg-storage practices and using a properly managed incubation system, poultry producers can achieve more consistent and reliable hatching results.

How to Design the Perfect Hatchery Room: Temperature, Ventilation and Hygiene Guide

Sun, 23 Aug 2026 14:11:54 +0530

A hatchery is much more than a room containing an incubator or hatcher. The environment surrounding the machines can have a direct effect on embryo development, hatchability, chick quality and biosecurity.

A properly designed hatchery room should provide stable environmental conditions, adequate ventilation, good hygiene and controlled access.

Whether you are setting up a small commercial hatchery or a large-scale poultry operation, the following factors should be considered.

1. Maintain a Stable Room Temperature

The hatchery room should be maintained at a relatively stable temperature rather than experiencing large fluctuations throughout the day.

For many commercial hatchery installations, a comfortable room environment around 21–27°C (70–80°F) is a practical starting point, although the exact requirement depends on the incubator design, machine loading, ventilation and local climate.

The important point is that the incubator should not have to continuously compensate for extreme room-temperature changes.

Avoid:

Direct sunlight on the incubator
Extremely hot rooms
Very cold drafts
Sudden temperature fluctuations
Placing machines directly beside heat-producing equipment

A stable room environment helps the incubator maintain its programmed operating conditions more consistently.

2. Provide Adequate Fresh-Air Ventilation

Ventilation is one of the most important aspects of hatchery design.

Developing embryos consume oxygen and produce carbon dioxide. As the embryo develops, its oxygen demand increases, particularly toward the later stages of incubation.

Therefore, the hatchery should have a reliable supply of fresh air.

Poor ventilation can contribute to:

Increased CO₂ concentration
Poor embryo development
Reduced hatchability
Weak chicks
Uneven hatching
Excessive heat and humidity

The ventilation system should be designed so that fresh air enters the room while stale air is removed without creating strong drafts directly across the machines.

3. Keep Incubators Away From Combustion Sources

Incubators and hatchers should not be installed close to gas heaters, diesel equipment or other combustion sources.

Combustion can affect air quality and introduce unwanted gases and contaminants into the hatchery environment.

Instead:

Incubator → clean air supply → controlled ventilation

is the preferred arrangement.

Heating systems should be designed so that combustion products cannot enter the hatchery's fresh-air supply.

4. Control Hatchery Access

A commercial hatchery should not be treated like a normal room where people can freely enter and leave.

Every person entering the hatchery can potentially introduce microorganisms.

Good hatchery biosecurity practices include:

Restricting unnecessary visitors
Providing dedicated footwear
Maintaining clean work clothing
Cleaning and disinfecting equipment
Controlling movement between clean and dirty areas
Keeping egg-handling and chick-handling areas organized

The objective is simple:

Reduce the number of opportunities for pathogens to enter the hatchery.

5. Keep the Hatchery Clean and Easy to Wash

The room itself should be designed for hygiene.

Where possible, use surfaces that are:

Smooth
Non-porous
Easy to wash
Resistant to commonly used disinfectants
Free from unnecessary cracks and crevices

Floors should allow effective cleaning and drainage.

Walls and ceilings should also be maintained so that dust, feathers and organic material do not accumulate.

Remember that cleaning and disinfection are not the same thing.

Cleaning removes organic material such as dust, feathers, egg contents and dirt.

Disinfection is performed after effective cleaning to reduce microorganisms to an acceptable level.

6. Separate Clean and Dirty Areas

A well-designed commercial hatchery should ideally have a logical flow of materials and people.

A typical flow can be:

Egg Receiving → Egg Selection/Storage → Setter Room → Hatcher Room → Chick Processing → Chick Dispatch

Waste, broken eggs, fluff and other contaminated material should move through a separate or controlled route wherever possible.

This reduces the possibility of contamination moving backward into clean areas.

7. Don't Ignore Humidity

Humidity is another important environmental parameter, particularly during incubation and hatching.

However, room humidity and machine humidity are not necessarily the same thing.

The incubator/hatcher should maintain the required internal conditions according to the egg type, machine design and incubation program.

The hatchery room should provide a reasonably stable environment so that the machine can control its internal humidity effectively.

Hatchery Room Design Checklist

Before commissioning a commercial hatchery, check the following:

Requirement	Recommended Practice
Room temperature	Stable and suitable for machine operation
Ventilation	Continuous supply of adequate fresh air
Air quality	Free from combustion gases and contaminants
Sunlight	Avoid direct sunlight on machines
Access	Restricted to authorized personnel
Flooring	Easy to clean and disinfect
Walls	Smooth and washable
Drainage	Adequate for cleaning operations
Hygiene	Regular cleaning + appropriate disinfection
Workflow	Separate/controlled clean and dirty movement
Machine placement	Adequate clearance for operation and maintenance

Why Hatchery Room Design Matters

A high-quality commercial incubator can precisely control temperature, humidity, turning and ventilation inside the machine, but the machine still depends on the surrounding environment.

Poor room conditions can increase the workload on the equipment and make environmental control more difficult.

Therefore, successful commercial incubation should be viewed as a combination of:

Good eggs + proper storage + correct machine settings + good hatchery environment + strict sanitation + proper management.

At Dayal Poultry Appliances, we design commercial incubation systems with the complete hatchery operation in mind, from egg setting and incubation to hatching and chick handling.