To encourage chickens to lay bigger eggs, provide a balanced diet rich in calcium and protein, ensure proper lighting, and maintain a stress-free environment.
Want larger eggs from your backyard flock? Egg size depends on breed, age, diet, and management. While you can’t change genetics, these science-backed strategies will help maximize egg size naturally.
1. Choose the Right Chicken Breeds
Some breeds naturally lay larger eggs than others. Larger-bodied heritage breeds typically produce bigger eggs:
- Rhode Island Reds
- Plymouth Rocks
- Orpingtons
- Wyandottes
- Marans
- Welsummers
- Sussex
Bantam breeds lay much smaller eggs. Even within breeds, egg size varies between genetic lines. Research breeders who select for egg size if this is important to you.
Egg Size Comparison by Breed
| Breed | Average Egg Weight |
|---|---|
| Rhode Island Red | 55-65g |
| Leghorn | 50-60g |
| Easter Egger | 50-55g |
| Silkie | 35-45g |
2. Optimize Your Chickens’ Diet
Nutrition directly impacts egg size. Key nutrients for larger eggs:
Protein
Feed 16-20% protein layer ration during peak production. Higher protein (18-20%) promotes larger eggs in young layers.
Calcium
Provide oyster shell or limestone free-choice for strong shells. Weak shells can limit egg size potential.
Methionine & Linoleic Acid
These amino acids specifically increase egg weight. Look for feeds containing these nutrients.
For more feeding tips, see our guide on when to feed chickens grit for proper digestion.
3. Manage Lighting for Optimal Production
Light exposure affects when pullets start laying. Earlier layers produce smaller eggs initially. To delay laying:
- Provide ≤10 hours of light daily until 19 weeks
- Gradually increase to 14-16 hours at maturity
This allows more physical development before egg production begins, resulting in larger first eggs.
4. Reduce Stress in Your Flock
Stress decreases egg size and production. Common stressors include:
- Predator threats
- Overcrowding
- Extreme temperatures
- Frequent disturbances
Learn how to stop chickens from pecking each other, which can indicate stress.
5. Allow Hens to Mature
Egg size increases with age:
- First eggs (20 weeks): 35-50g
- 26 weeks: ~60g
- 30+ weeks: 53-73g
- Peak size: 1-2 years
According to Dine a Chook, egg size increases about 0.1g per week after 26 weeks.
6. Ensure Proper Hydration
Water is essential for egg formation. Dehydrated hens produce smaller eggs. Provide:
- Clean, fresh water at all times
- Multiple water stations
- Heated waterers in winter
7. Monitor Health and Parasites
Worms and other parasites can reduce nutrient absorption, affecting egg size. The Manitoba Agriculture recommends regular health checks and parasite control.
Signs of Health Issues
- Decreased egg production
- Smaller egg size
- Poor shell quality
- Weight loss
By implementing these strategies, you can help your chickens reach their full egg size potential while maintaining their health and wellbeing.