Topics:
Animal Refresher, Poultry Science
Age of Peak Egg Production in Layers
Peak egg production in a layer is at the age of:
- 42 weeks
- About 1 year
- 32–35 weeks — Correct Answer
- 22–25 weeks
Explanation:
Correct Answer: 32–35 weeks
Peak egg production in a commercial layer is achieved at 32–35 weeks of age, at which point approximately 85% production is observed.
Egg Production Cycle of a Laying Hen
| Phase | Age Period | Key Events |
|---|---|---|
| Phase I | 22–42 weeks | Production rises from 0 to peak (~85%); egg size increases from 36 g to 58 g |
| Phase II | 43–62 weeks | Egg production declines to ~65% |
| Phase III | 63–72 weeks | Production below 65%; layer replaced at 72 weeks |
Key Production Facts
- Egg production starts at 22 weeks (5.5 months of age).
- After peak, production declines at 0.5% per week.
- Layers are replaced at 72 weeks (18 months) of age.
- Average egg production of improved White Leghorn strain: 300 eggs/year.
📚 About this Topic — Animal Refresher
This multiple choice question is from Animal Refresher, Poultry Science. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from Animal Refresher to strengthen your preparation.
