When young hens begin laying for the first time, many farmers notice something unusual: the first eggs are smaller than normal. This is a common concern among new poultry keepers, especially those monitoring egg production performance. So, are the first eggs chickens lay small? And if so, why does it happen, and how does it affect your poultry farm’s operations?
In this comprehensive guide, we explain why early eggs are small, how long this phase lasts, what it means for flock health, and how professional poultry equipment from Guangxing Poultry Equipment can help farmers optimize production from the very first egg.
Yes — The First Eggs Chickens Lay Are Usually Small
It is completely normal for young pullets (usually at 18–22 weeks of age) to lay small-sized eggs when they begin their laying cycle. These early eggs are often called:
Pullet eggs
Starter eggs
Tiny eggs
Practice eggs
The size varies by breed, nutrition, and environment, but nearly all hens go through this stage.
Why Are the First Eggs Small? 6 Scientific Reasons
Understanding the biological reasons behind small starter eggs helps farmers support pullets during this crucial transition.
1. Reproductive System Still Developing
Even though pullets look fully grown, their reproductive system is not yet mature. Early eggs are small because:
The oviduct is still expanding
Hormonal regulation is stabilizing
Egg-forming glands are developing
As the system matures, egg size increases naturally.
2. Calcium Utilization Is Still Adjusting
A hen requires a large amount of calcium to form eggshells. In early stages:
The bones haven’t built strong calcium reserves
Calcium absorption is less efficient
Shell glands are still adapting
This often results in smaller eggs or thinner shells.
3. Body Weight Is Not Fully Stabilized
Pullets that are slightly underweight at point of lay tend to produce:
Smaller eggs
Uneven egg sizes
Lower initial laying rate
Proper nutrition is essential during the 6–18 week growth period.
4. Breed Characteristics
Different chicken breeds have different egg size baselines:
Leghorns start small but increase quickly
Rhode Island Reds lay medium-sized early eggs
Broiler breeders produce small eggs first, then large eggs
High-production layers reach normal egg size more rapidly
Breed genetics play a major role in egg size progress.
5. Hormonal Changes at Maturity
Early hormonal surges can trigger sudden, premature laying. These eggs are usually:
Very small
Sometimes yolkless (“wind eggs”)
Not indicative of long-term performance
This is a temporary stage.
6. Environmental Stress
If pullets experience stress just before laying, early eggs may be smaller because stress affects:
Hormone regulation
Feed intake
Sleep and daily rhythm
Common stressors include heat, overcrowding, poor ventilation, and sudden changes in environment.
How Long Do Small Eggs Last?
Most hens lay small or medium eggs for 2 to 6 weeks before egg size stabilizes.
General timeline:
Week 1–2: Small pullet eggs
Week 3–4: Medium eggs begin
Week 5–6: Regular-sized eggs
Week 7 onward: Eggs reach breed-standard size
Good management, nutrition, and equipment can shorten the adjustment period.
Are Small First Eggs Safe to Eat?
Yes. Early eggs are:
Completely safe
Entirely edible
Often richer in flavor
Sometimes preferred by chefs
However, because they are small, they are usually not sold commercially and are kept for farm use.
Do Small Early Eggs Affect Future Production?
Small starter eggs do not negatively impact long-term performance. In fact:
A pullet that begins laying small eggs early often becomes a high producer later
Egg size gradually increases as flock maturity improves
Long-term productivity depends more on diet, genetics, and housing
The key is ensuring pullets are managed properly during the transition.
How to Help Pullets Quickly Produce Normal-Sized Eggs
Farmers can take several steps to encourage rapid egg size normalization.
1. Provide a High-Quality Layer Diet
Pullets require feed that includes:
16–18% protein
3.5–4.0% calcium
Essential amino acids like methionine and lysine
Added vitamins A, D3, and E
Switching to layer feed one week before point of lay improves early egg size.
2. Maintain Proper Lighting Programs
Lighting controls hen maturity. Use:
14–16 hours of light per day
Gradual increases, not sudden changes
An automated lighting system ensures consistency.
3. Use High-Quality Layer Cages
Professional equipment provides benefits such as:
Proper space allocation
Good airflow
Reduced stress
Better feed distribution
High-quality layer cages, such as those from Guangxing Poultry Equipment, help maintain stable living conditions, which supports better early egg development.
4. Keep the Coop Clean and Dry
Clean coops reduce disease and stress. Use:
Ventilation systems
Manure removal equipment
Regular disinfection routines
Healthy pullets produce normal-sized eggs faster.
5. Ensure Clean Drinking Water
Dehydration reduces egg size. Automatic drinking systems help:
Keep water clean
Prevent contamination
Ensure consistent supply
Waterline flushing prevents bacteria buildup.
6. Reduce Stress Factors
Avoid sudden:
Temperature changes
Noise
Overcrowding
Rough handling
Calm pullets are more likely to develop stable laying patterns.
What Small Eggs Can Tell You About Your Flock
Small starter eggs provide useful information.
If early eggs last too long (beyond 6 weeks), it may indicate:
Poor nutrition
Insufficient lighting
Stress or disease
Poor ventilation
Inadequate cage design
If eggs suddenly decrease in size after normalizing, it may indicate:
Heat stress
Worms or parasites
Feed quality issues
Water interruption
Monitoring egg size helps farmers quickly detect problems.
How Guangxing Poultry Equipment Supports Better Egg Production
At Guangxing Poultry Equipment, we design expert solutions that help farmers boost egg size, production rate, and flock health from day one.
Our top equipment for layer farms includes:
✔ H-Type & A-Type Layer Cages
Improve space efficiency
Reduce stress
Maintain cleaner living conditions
Enhance feed and water access
✔ Automatic Feeding Systems
Guarantee even feed distribution so pullets gain weight properly.
✔ Automatic Drinking Systems
Provide clean, pressure-regulated water to maximize egg formation.
✔ Manure Removal Systems
Reduce ammonia and bacteria, protecting pullet health.
✔ Ventilation & Climate Control
Maintain ideal temperatures, reducing stress-related drops in egg size.
✔ Disinfection & Spraying Equipment
Improve biosecurity and prevent diseases that affect egg quality.
With professional equipment, farmers can ensure that pullets develop smoothly and reach optimal egg size sooner.
Conclusion
So, are the first eggs chickens lay small?
Yes—this is completely normal. Small pullet eggs are a natural part of a hen’s maturation process. With proper nutrition, lighting, housing, and biosecurity, hens will quickly begin producing standard-sized eggs.
For poultry farms looking to improve productivity, reduce stress, and maintain high egg quality, Guangxing Poultry Equipment provides advanced, reliable, and efficient solutions for every stage of layer production.
If you want to upgrade your poultry house with modern equipment or need a customized farm solution, contact us anytime.
